383 lines
36 KiB
XML
383 lines
36 KiB
XML
<?xml:stylesheet version="1.0" encoding="utf-8"?>
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<?xml:stylesheet type="text/xsl" href="../rzahg/icdyntable.xsl"?>
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<TABLE xmlns="x-schema:rzakgconceptoptions-schema.xml">
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<TITLE>DHCP options lookup</TITLE>
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<TH col="TD1">
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Option number
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</TH>
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<TH col="TD2">
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Option
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</TH>
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<TH col="TD3">
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Description
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</TH>
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<TR><TD1 valign="top" width="11.224489795918368%">1</TD1><TD2 valign="top" width="17.346938775510203%">Subnet mask</TD2><TD3 valign="top" width="71.42857142857143%">The subnet mask option specifies the client's subnet
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mask as per RFC 950. If both the subnet mask and the router option are specified
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in a DHCP reply, the subnet mask option must be first.<p>The code for the
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subnet mask option is 1, and its length is 4 octets.</p>
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<br clear="none"></br><img src="rzakg530.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">2</TD1><TD2 valign="top" width="17.346938775510203%">Time offset</TD2><TD3 valign="top" width="71.42857142857143%">The time offset field specifies the offset of the client's
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subnet in seconds from Coordinated Universal Time (UTC). The offset is expressed
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as a two's complement 32-bit integer. A positive offset indicates a location
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east of the zero meridian and a negative offset indicates a location west
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of the zero meridian.<p>The code for the time offset option is 2, and its
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length is 4 octets.</p>
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<br clear="none"></br><img src="rzakg531.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">3</TD1><TD2 valign="top" width="17.346938775510203%">Router</TD2><TD3 valign="top" width="71.42857142857143%">The router option specifies a list of IP addresses for
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routers on the client's subnet. Routers should be listed in order of preference.<p>The
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code for the router option is 3. The minimum length for the router option
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is 4 octets, and the length must always be a multiple of 4.</p>
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<br clear="none"></br><img src="rzakg511.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">4</TD1><TD2 valign="top" width="17.346938775510203%">Time server</TD2><TD3 valign="top" width="71.42857142857143%">The time server option specifies a list of RFC 868 time
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servers available to the client. Servers should be listed in order of preference.<p>The
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code for the time server option is 4. The minimum length for this option is
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4 octets, and the length must always be a multiple of 4.</p>
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<br clear="none"></br><img src="rzakg512.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">5</TD1><TD2 valign="top" width="17.346938775510203%">Name server</TD2><TD3 valign="top" width="71.42857142857143%">The name server option specifies a list of IEN 116 name
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servers available to the client. Servers should be listed in order of preference.<p>The
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code for the name server option is 5. The minimum length for this option is
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4 octets, and the length must always be a multiple of 4.</p>
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<br clear="none"></br><img src="rzakg513.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">6</TD1><TD2 valign="top" width="17.346938775510203%">Domain Name Server</TD2><TD3 valign="top" width="71.42857142857143%">The domain name server option specifies a list of Domain
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Name System (STD 13, RFC 1035) name servers available to the client. Servers
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should be listed in order of preference.<p>The code for the domain name server
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option is 6. The minimum length for this option is 4 octets, and the length
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must always be a multiple of 4.</p>
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<br clear="none"></br><img src="rzakg514.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">7</TD1><TD2 valign="top" width="17.346938775510203%">Log server</TD2><TD3 valign="top" width="71.42857142857143%">The log server option specifies a list of MIT-LCS UDP
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log servers available to the client. Servers should be listed in order of
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preference.<p>The code for the log server option is 7. The minimum length
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for this option is 4 octets, and the length must always be a multiple of 4.</p>
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<br clear="none"></br><img src="rzakg515.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">8</TD1><TD2 valign="top" width="17.346938775510203%">Cookie server</TD2><TD3 valign="top" width="71.42857142857143%">The cookie server option specifies a list of RFC 865
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cookie servers available to the client. Servers should be listed in order
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of preference.<p>The code for the cookie server option is 8. The minimum length
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for this option is 4 octets, and the length must always be a multiple of 4.</p>
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<br clear="none"></br><img src="rzakg516.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">9</TD1><TD2 valign="top" width="17.346938775510203%">LPR server</TD2><TD3 valign="top" width="71.42857142857143%">The LPR server option specifies a list of RFC 1179 line
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printer servers available to the client. Servers should be listed in order
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of preference.<p>The code for the LPR server option is 9. The minimum length
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for this option is 4 octets, and the length must always be a multiple of 4.</p>
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<br clear="none"></br><img src="rzakg517.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">10</TD1><TD2 valign="top" width="17.346938775510203%">Impress server</TD2><TD3 valign="top" width="71.42857142857143%">The Impress server option specifies a list of Imagen
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Impress servers available to the client. Servers should be listed in order
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of preference.<p>The code for the Impress server option is 10. The minimum
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length for this option is 4 octets, and the length must always be a multiple
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of 4.</p>
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<br clear="none"></br><img src="rzakg518.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">11</TD1><TD2 valign="top" width="17.346938775510203%">Resource location server</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies a list of RFC 887 Resource Location
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servers available to the client. Servers should be listed in order of preference.<p>The
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code for this option is 11. The minimum length for this option is 4 octets,
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and the length must always be a multiple of 4.</p>
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<br clear="none"></br><img src="rzakg519.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">12</TD1><TD2 valign="top" width="17.346938775510203%">Host name</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the name of the client. The name
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might or might not be qualified with the local domain name (see section 3.17
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for the preferred way to retrieve the domain name). See RFC 1035 for character
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set restrictions.<p>The code for this option is 12, and its minimum length
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is 1.</p>
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<br clear="none"></br><img src="rzakg520.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">13</TD1><TD2 valign="top" width="17.346938775510203%">Boot file size</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the length in 512-octet blocks
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of the default boot image for the client. The file length is specified as
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an unsigned 16-bit integer.<p>The code for this option is 13, and its length
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is 2.</p>
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<br clear="none"></br><img src="rzakg541.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">14</TD1><TD2 valign="top" width="17.346938775510203%">Merit dump file</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the path-name of a file to which
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the client's core image should be dumped in the event the client crashes.
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The path is formatted as a character string consisting of characters from
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the NVT ASCII character set.<p>The code for this option is 14. Its minimum
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length is 1.</p>
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<br clear="none"></br><img src="rzakg521.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">15</TD1><TD2 valign="top" width="17.346938775510203%">Domain name</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the domain name that client should
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use when resolving hostnames through the Domain Name System.<p>The code for
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this option is 15. Its minimum length is 1.</p>
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<br clear="none"></br><img src="rzakg522.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">16</TD1><TD2 valign="top" width="17.346938775510203%">Swap server</TD2><TD3 valign="top" width="71.42857142857143%">This specifies the IP address of the client's swap server.<p>The
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code for this option is 16, and its length is 4.</p>
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<br clear="none"></br><img src="rzakg523.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">17</TD1><TD2 valign="top" width="17.346938775510203%">Root path</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the path-name that contains the
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client's root disk. The path is formatted as a character string consisting
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of characters from the NVT ASCII character set.<p>The code for this option
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is 17. Its minimum length is 1.</p>
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<br clear="none"></br><img src="rzakg524.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">18</TD1><TD2 valign="top" width="17.346938775510203%">Extensions path</TD2><TD3 valign="top" width="71.42857142857143%">A string to specify a file, retrievable via TFTP, which
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contains information which can be interpreted in the same way as the 64-octet
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vendor-extension field within the BOOTP response, with the following exceptions: <ul><li>The length of the file is unconstrained</li>
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<li>All references to Tag 18 (that is, instances of the BOOTP
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Extensions Path field) within the file are ignored.</li>
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</ul>
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<p>The code for this option is 18. Its minimum length is 1.</p>
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<br clear="none"></br><img src="rzakg525.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">19</TD1><TD2 valign="top" width="17.346938775510203%">IP forwarding</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies whether the client should configure
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its IP layer for packet forwarding. A value of 0 means disable IP forwarding,
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and a value of 1 means enable IP forwarding.<p>The code for this option is
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19, and its length is 1.</p>
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<br clear="none"></br><img src="rzakg544.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">20</TD1><TD2 valign="top" width="17.346938775510203%">Non-Local source routing</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies whether the client should configure
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its IP layer to allow forwarding of datagrams with non-local source routes.
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A value of 0 means disallow forwarding of such datagrams, and a value of 1
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means allow forwarding.<p>The code for this option is 20, and its length is
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1.</p>
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<br clear="none"></br><img src="rzakg545.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">21</TD1><TD2 valign="top" width="17.346938775510203%">Policy filter</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies policy filters for non-local source
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routing. The filters consist of a list of IP addresses and masks which specify
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destination/mask pairs with which to filter incoming source routes.<p>Any
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source routed datagram whose next-hop address does not match one of the filters
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should be discarded by the client.</p>
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<p>The code for this option is 21. The
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minimum length of this option is 8, and the length must be a multiple of 8.</p>
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<br clear="none"></br><img src="rzakg510.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">22</TD1><TD2 valign="top" width="17.346938775510203%">Maximum datagram reassembly size</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the maximum size datagram that
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the client should be prepared to reassemble. The size is specified as a 16-bit
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unsigned integer. The minimum value legal value is 576.<p>The code for this
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option is 22, and its length is 2.</p>
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<br clear="none"></br><img src="rzakg542.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">23</TD1><TD2 valign="top" width="17.346938775510203%">Default IP time to live</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the default time-to-live that
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the client should use on outgoing datagrams. The TTL is specified as an octet
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with a value between 1 and 255.<p>The code for this option is 23, and its
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length is 1.</p>
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<br clear="none"></br><img src="rzakg546.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">24</TD1><TD2 valign="top" width="17.346938775510203%">Path MTU aging timeout</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the timeout (in seconds) to use
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when aging Path MTU values discovered by the mechanism defined in RFC 1191.
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The timeout is specified as a 32-bit unsigned integer.<p>The code for this
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option is 24, and its length is 4.</p>
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<br clear="none"></br><img src="rzakg532.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">25</TD1><TD2 valign="top" width="17.346938775510203%">Path MTU plateau table</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies a table of MTU sizes to use when
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performing Path MTU Discovery as defined in RFC 1191. The table is formatted
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as a list of 16-bit unsigned integers, ordered from smallest to largest. The
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minimum MTU value cannot be smaller than 68.<p>The code for this option is
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25. Its minimum length is 2, and the length must be a multiple of 2.</p>
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<br clear="none"></br><img src="rzakg526.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">26</TD1><TD2 valign="top" width="17.346938775510203%">Interface MTU</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the MTU to use on this interface.
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The MTU is specified as a 16-bit unsigned integer. The minimum legal value
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for the MTU is 68.<p>The code for this option is 26, and its length is 2.</p>
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<br clear="none"></br><img src="rzakg543.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">27</TD1><TD2 valign="top" width="17.346938775510203%">All subnets are local</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies whether the client can assume
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that all subnets of the IP network to which the client is connected use the
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same MTU as the subnet of that network to which the client is directly connected.
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A value of 1 indicates that all subnets share the same MTU. A value of 0 means
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that the client should assume that some subnets of the directly connected
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network might have smaller MTUs.<p>The code for this option is 27, and its
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length is 1.</p>
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<br clear="none"></br><img src="rzakg547.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">28</TD1><TD2 valign="top" width="17.346938775510203%">Broadcast address</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the broadcast address in use on
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the client's subnet. Legal values for broadcast addresses are specified in
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section 3.2.1.3 of RFC 2132.<p>The code for this option is 28, and its length
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is 4.</p>
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<br clear="none"></br><img src="rzakg533.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">29</TD1><TD2 valign="top" width="17.346938775510203%">Perform mask discovery</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies whether the client should perform
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subnet mask discovery using ICMP. A value of 0 indicates that the client should
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not perform mask discovery. A value of 1 means that the client should perform
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mask discovery.<p>The code for this option is 29, and its length is 1.</p>
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<br clear="none"></br><img src="rzakg548.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">30</TD1><TD2 valign="top" width="17.346938775510203%">Mask supplier</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies whether the client should respond
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to subnet mask requests using ICMP. A value of 0 indicates that the client
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should not respond. A value of 1 means that the client should respond.<p>The
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code for this option is 30, and its length is 1.</p>
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<br clear="none"></br><img src="rzakg549.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">31</TD1><TD2 valign="top" width="17.346938775510203%">Perform router discovery</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies whether the client should solicit
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routers using the Router Discovery mechanism defined in RFC 1256. A value
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of 0 indicates that the client should not perform router discovery. A value
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of 1 means that the client should perform router discovery.<p>The code for
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this option is 31, and its length is 1.</p>
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<br clear="none"></br><img src="rzakg550.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">32</TD1><TD2 valign="top" width="17.346938775510203%">Router solicitation address option</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the address to which the client
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should transmit router solicitation requests.<p>The code for this option is
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32, and its length is 4.</p>
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<br clear="none"></br><img src="rzakg534.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">33</TD1><TD2 valign="top" width="17.346938775510203%">Static route</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies a list of static routes that the
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client should install in its routing cache. If multiple routes to the same
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destination are specified, they are listed in descending order of priority.<p>The
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routes consist of a list of IP address pairs. The first address is the destination
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address, and the second address is the router for the destination.</p>
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<p>The
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default route (0.0.0.0) is an illegal destination for a static route.</p>
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<p>The
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code for this option is 33. The minimum length of this option is 8, and the
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length must be a multiple of 8.</p>
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<br clear="none"></br><img src="rzakg509.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">34</TD1><TD2 valign="top" width="17.346938775510203%">Trailer encapsulation</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies whether the client should negotiate
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the use of trailers (RFC 893) when using the ARP protocol. A value of 0 indicates
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that the client should not attempt to use trailers. A value of 1 means that
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the client should attempt to use trailers.<p>The code for this option is 34,
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and its length is 1.</p>
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<br clear="none"></br><img src="rzakg573.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">35</TD1><TD2 valign="top" width="17.346938775510203%">ARP cache timeout</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the timeout in seconds for ARP
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cache entries. The time is specified as a 32-bit unsigned integer.<p>The code
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for this option is 35, and its length is 4.</p>
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<br clear="none"></br><img src="rzakg535.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">36</TD1><TD2 valign="top" width="17.346938775510203%">Ethernet encapsulation</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies whether the client should use
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Ethernet Version 2 (RFC 894) or IEEE 802.3 (RFC 1042) encapsulation if the
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interface is an Ethernet. A value of 0 indicates that the client should use
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RFC 894 encapsulation. A value of 1 means that the client should use RFC 1042
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encapsulation.<p>The code for this option is 36, and its length is 1.</p>
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<br clear="none"></br><img src="rzakg551.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">37</TD1><TD2 valign="top" width="17.346938775510203%">TCP default TTL</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the default TTL that the client
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should use when sending TCP segments. The value is represented as an 8-bit
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unsigned integer. The minimum value is 1.<p>The code for this option is 37,
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and its length is 1.</p>
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<br clear="none"></br><img src="rzakg552.gif"></img><br clear="none"></br></TD3></TR>
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<TR><TD1 valign="top" width="11.224489795918368%">38</TD1><TD2 valign="top" width="17.346938775510203%">TCP keep-alive interval</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the interval (in seconds) that
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the client TCP should wait before sending a keepalive message on a TCP connection.
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The time is specified as a 32-bit unsigned integer. A value of zero indicates
|
|
that the client should not generate keepalive messages on connections unless
|
|
specifically requested by an application.<p>The code for this option is 38,
|
|
and its length is 4.</p>
|
|
<br clear="none"></br><img src="rzakg536.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">39</TD1><TD2 valign="top" width="17.346938775510203%">TCP keep-alive garbage</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the whether the client should
|
|
send TCP keepalive messages with a octet of garbage for compatibility with
|
|
older implementations. A value of 0 indicates that a garbage octet should
|
|
not be sent. A value of 1 indicates that a garbage octet should be sent.<p>The
|
|
code for this option is 39, and its length is 1.</p>
|
|
<br clear="none"></br><img src="rzakg553.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">40</TD1><TD2 valign="top" width="17.346938775510203%">Network information service domain</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the name of the client's NIS domain.
|
|
The domain is formatted as a character string consisting of characters from
|
|
the NVT ASCII character set.<p>The code for this option is 40. Its minimum
|
|
length is 1.</p>
|
|
<br clear="none"></br><img alt="" src="rzakg540.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">41</TD1><TD2 valign="top" width="17.346938775510203%">Network information servers</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies a list of IP addresses indicating
|
|
NIS servers available to the client. Servers should be listed in order of
|
|
preference.<p>The code for this option is 41. Its minimum length is 4, and
|
|
the length must be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg556.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">42</TD1><TD2 valign="top" width="17.346938775510203%">Network time protocol servers option</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies a list of IP addresses indicating
|
|
NTP servers available to the client. Servers should be listed in order of
|
|
preference.<p>The code for this option is 42. Its minimum length is 4, and
|
|
the length must be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg557.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">44</TD1><TD2 valign="top" width="17.346938775510203%">NetBIOS over TCP/IP name server</TD2><TD3 valign="top" width="71.42857142857143%">The NetBIOS name server (NBNS) option specifies a list
|
|
of RFC 1001/1002 NBNS name servers listed in order of preference.<p>The code
|
|
for this option is 44. The minimum length of the option is 4 octets, and the
|
|
length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg558.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">45</TD1><TD2 valign="top" width="17.346938775510203%">NetBIOS over TCP/IP datagram distribution server</TD2><TD3 valign="top" width="71.42857142857143%">The NetBIOS datagram distribution server (NBDD) option
|
|
specifies a list of RFC 1001/1002 NBDD servers listed in order of preference.<p>The
|
|
code for this option is 45. The minimum length of the option is 4 octets,
|
|
and the length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg559.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">46</TD1><TD2 valign="top" width="17.346938775510203%">NetBIOS over TCP/IP node type</TD2><TD3 valign="top" width="71.42857142857143%">The NetBIOS node type option allows NetBIOS over TCP/IP
|
|
clients which are configurable to be configured as described in RFC 1001/1002.
|
|
The value is specified as a single octet which identifies the client type
|
|
as follows:<br clear="none"></br><img src="rzakg554.gif"></img><br clear="none"></br><p>In the
|
|
above chart, the notation '0x' indicates a number in base-16 (hexadecimal).</p>
|
|
<p>The
|
|
code for this option is 46. The length of this option is always 1.</p>
|
|
<br clear="none"></br><img src="rzakg555.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">47</TD1><TD2 valign="top" width="17.346938775510203%">NetBIOS over TCP/IP scope</TD2><TD3 valign="top" width="71.42857142857143%">The NetBIOS scope option specifies the NetBIOS over
|
|
TCP/IP scope parameter for the client as specified in RFC 1001/1002.<p>The
|
|
code for this option is 47. The minimum length of this option is 1.</p>
|
|
<br clear="none"></br><img src="rzakg528.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">48</TD1><TD2 valign="top" width="17.346938775510203%">X Window System Font server</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies a list of X Window System Font
|
|
servers available to the client. Servers should be listed in order of preference.<p>The
|
|
code for this option is 48. The minimum length of this option is 4 octets,
|
|
and the length must be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg560.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">49</TD1><TD2 valign="top" width="17.346938775510203%">X Window System display manager</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies a list of IP addresses of systems
|
|
that are running the X Window System Display Manager and are available to
|
|
the client.<p>Addresses should be listed in order of preference.</p>
|
|
<p>The
|
|
code for the this option is 49. The minimum length of this option is 4, and
|
|
the length must be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg561.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">51</TD1><TD2 valign="top" width="17.346938775510203%">IP address lease time</TD2><TD3 valign="top" width="71.42857142857143%">This option is used in a client request (DHCPDISCOVER
|
|
or DHCPREQUEST) to allow the client to request a lease time for the IP address.
|
|
In a server reply (DHCPOFFER), a DHCP server uses this option to specify the
|
|
lease time it is willing to offer.<p>The time is in units of seconds, and
|
|
is specified as a 32-bit unsigned integer.</p>
|
|
<p>The code for this option
|
|
is 51, and its length is 4.</p>
|
|
<br clear="none"></br><img src="rzakg537.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">58</TD1><TD2 valign="top" width="17.346938775510203%">Renewal (T1) time value</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the time interval from address
|
|
assignment until the client transitions to the RENEWING state.<p>The value
|
|
is in units of seconds, and is specified as a 32-bit unsigned integer.</p>
|
|
<p>The
|
|
code for this option is 58, and its length is 4.</p>
|
|
<br clear="none"></br><img src="rzakg538.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">59</TD1><TD2 valign="top" width="17.346938775510203%">Rebinding (T2) time value option</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the time interval from address
|
|
assignment until the client transitions to the REBINDING state.<p>The value
|
|
is in units of seconds, and is specified as a 32-bit unsigned integer.</p>
|
|
<p>The
|
|
code for this option is 59, and its length is 4.</p>
|
|
<br clear="none"></br><img src="rzakg539.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">62</TD1><TD2 valign="top" width="17.346938775510203%">NetWare/IP domain name</TD2><TD3 valign="top" width="71.42857142857143%">Specifies the Netware/IP domain name.</TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">63</TD1><TD2 valign="top" width="17.346938775510203%">NetWare/IP</TD2><TD3 valign="top" width="71.42857142857143%">Specifies the NetWare sub-options you want. The range
|
|
is 1 to 255. Use option 62 to specify the NetWare/IP domain name.</TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">64</TD1><TD2 valign="top" width="17.346938775510203%">NIS domain name</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies the name of the client's NIS+
|
|
domain. The domain is formatted as a character string consisting of characters
|
|
from the NVT ASCII character set.<p>The code for this option is 64. Its minimum
|
|
length is 1.</p>
|
|
<br clear="none"></br><img src="rzakg527.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">65</TD1><TD2 valign="top" width="17.346938775510203%">NIS servers</TD2><TD3 valign="top" width="71.42857142857143%"><p>This option specifies a list of IP addresses indicating
|
|
NIS+ servers available to the client. Servers should be listed in order of
|
|
preference.</p>
|
|
<p>The code for this option is 65. Its minimum length is 4,
|
|
and the length must be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg562.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">66</TD1><TD2 valign="top" width="17.346938775510203%">Server name</TD2><TD3 valign="top" width="71.42857142857143%">This option is used to identify a TFTP server when the
|
|
'sname' field in the DHCP header has been used for DHCP options.<p>The code
|
|
for this option is 66, and its minimum length is 1.</p>
|
|
<br clear="none"></br><img src="rzakg571.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">67</TD1><TD2 valign="top" width="17.346938775510203%">Boot file name</TD2><TD3 valign="top" width="71.42857142857143%">This option is used to identify a bootfile when the
|
|
'file' field in the DHCP header has been used for DHCP options.<p>The code
|
|
for this option is 67, and its minimum length is 1.</p>
|
|
<br clear="none"></br><img src="rzakg572.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">68</TD1><TD2 valign="top" width="17.346938775510203%">Home address</TD2><TD3 valign="top" width="71.42857142857143%">This option specifies a list of IP addresses indicating
|
|
mobile IP home agents available to the client. Agents should be listed in
|
|
order of preference.<p>The code for this option is 68. Its minimum length
|
|
is 0 (indicating no home agents are available) and the length must be a multiple
|
|
of 4. It is expected that the usual length will be four octets, containing
|
|
a single home agent's address.</p>
|
|
<br clear="none"></br><img src="rzakg529.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">69</TD1><TD2 valign="top" width="17.346938775510203%">SMTP servers</TD2><TD3 valign="top" width="71.42857142857143%">The SMTP server option specifies a list of SMTP servers
|
|
available to the client. Servers should be listed in order of preference.<p>The
|
|
code for the SMTP server option is 69. The minimum length for this option
|
|
is 4 octets, and the length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg563.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">70</TD1><TD2 valign="top" width="17.346938775510203%">POP3 server</TD2><TD3 valign="top" width="71.42857142857143%"><p>The POP3 server option specifies a list of POP3 available
|
|
to the client. Servers should be listed in order of preference.</p>
|
|
<p>The
|
|
code for the POP3 server option is 70. The minimum length for this option
|
|
is 4 octets, and the length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg564.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">71</TD1><TD2 valign="top" width="17.346938775510203%">NNTP server</TD2><TD3 valign="top" width="71.42857142857143%">The NNTP server option specifies a list of NNTP available
|
|
to the client. Servers should be listed in order of preference.<p>The code
|
|
for the NNTP server option is 71. The minimum length for this option is 4
|
|
octets, and the length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg565.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">72</TD1><TD2 valign="top" width="17.346938775510203%">WWW server</TD2><TD3 valign="top" width="71.42857142857143%">The WWW server option specifies a list of WWW available
|
|
to the client. Servers should be listed in order of preference.<p>The code
|
|
for the WWW server option is 72. The minimum length for this option is 4 octets,
|
|
and the length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg566.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">73</TD1><TD2 valign="top" width="17.346938775510203%">Finger server</TD2><TD3 valign="top" width="71.42857142857143%">The Finger server option specifies a list of Finger
|
|
available to the client. Servers should be listed in order of preference.<p>The
|
|
code for the Finger server option is 73. The minimum length for this option
|
|
is 4 octets, and the length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg567.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">74</TD1><TD2 valign="top" width="17.346938775510203%">IRC server</TD2><TD3 valign="top" width="71.42857142857143%">The IRC server option specifies a list of IRC available
|
|
to the client. Servers should be listed in order of preference.<p>The code
|
|
for the IRC server option is 74. The minimum length for this option is 4 octets,
|
|
and the length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg568.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">75</TD1><TD2 valign="top" width="17.346938775510203%">StreetTalk server</TD2><TD3 valign="top" width="71.42857142857143%">The StreetTalk server option specifies a list of StreetTalk
|
|
servers available to the client. Servers should be listed in order of preference.<p>The
|
|
code for the StreetTalk server option is 75. The minimum length for this option
|
|
is 4 octets, and the length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg569.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">76</TD1><TD2 valign="top" width="17.346938775510203%">STDA server</TD2><TD3 valign="top" width="71.42857142857143%">The StreetTalk Directory Assistance (STDA) server option
|
|
specifies a list of STDA servers available to the client. Servers should be
|
|
listed in order of preference.<p>The code for the StreetTalk Directory Assistance
|
|
server option is 76. The minimum length for this option is 4 octets, and the
|
|
length must always be a multiple of 4.</p>
|
|
<br clear="none"></br><img src="rzakg570.gif"></img><br clear="none"></br></TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">77</TD1><TD2 valign="top" width="17.346938775510203%">User class</TD2><TD3 valign="top" width="71.42857142857143%">Specifies the class name of which the host is a member.
|
|
You must have previously defined this class to the DHCP server during DHCP
|
|
server configuration.</TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">78</TD1><TD2 valign="top" width="17.346938775510203%">Directory agent</TD2><TD3 valign="top" width="71.42857142857143%">Specifies the IP address of the directory agent if clients
|
|
use Service Location Protocol to transact messages.</TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">79</TD1><TD2 valign="top" width="17.346938775510203%">Service scope</TD2><TD3 valign="top" width="71.42857142857143%">Specifies the scope of the directory agent that uses
|
|
Service Location Protocol to respond to service request messages.</TD3></TR>
|
|
<TR><TD1 valign="top" width="11.224489795918368%">80</TD1><TD2 valign="top" width="17.346938775510203%">Naming authority</TD2><TD3 valign="top" width="71.42857142857143%">Specifies the naming authority for the directory agent
|
|
if clients use Service Location Protocol to transact messages. The naming
|
|
authority specifies the syntax for schemes that are used in URLs.</TD3></TR>
|
|
</TABLE>
|