The BLOCK parameter prevents the network route received on the
specified interface from being included in the RouteD routes table.
Consequently, the network is unknown and not forwarded to any other routers.
Specify networks that you want to block by one of the following methods:
- Network
- A network that is specified as an IP address and a mask or as an IP address
and a bit number. The bit number n indicates which bit in the 0 – n bits of
the IP address (counting left to right) is the last bit of the network portion
of the IP address. If the MASK and bit number are missing, the system calculates
a network by using the subnet mask of the interface specified through the
ADDTCPIFC CL command.
- PRIVATE
- The PRIVATE keyword refers to the sets of IP addresses that are designated
for use by the Internet Assigned Number Authority (IANA) only within private
internets. For more information, see RFC 1918, section 3.
- 10.0.0.0 to 10.255.255.255 (10/8 prefix) – 1 class A network.
- 172.16.0.0 to 172.31.255.255 (172.16/12 prefix) – 16 contiguous class
B networks.
- 192.168.0.0 to 192.168.255.255 (192.168/16 prefix) – 256 contiguous class
C networks.
When the RouteD server tries to send a route, it processes multiple forward
parameters in the supplied order. The first forward parameter that allows
the system to send the route over the specified interface ends the processing.
The default is to forward.