Bay Networks 5390, Administering, Page: 367 / 888

893-741-B A14-11
Configuring Hosts and Servers
Gateway Extensions
The gateway extensions allow you to define lines in the file that refer only to a specific Model 5390
server, or to all Model 5390 servers, or to a specific subnet.
The syntax for an extension that includes a specific IP address is:
annex ipaddr
...
end
The syntax for an extension that matches all Model 5390 servers (useful for local files and to force
route caching) is:
annex *
...
end
The lines enclosed by the annex...end block are to be used only by the Model 5390 server with the
IP address ipaddr. Any routes enclosed by the annex...end block are cached. An else keyword can
also be used (alone on a line) to list configuration information for all Model 5390 servers, except
the one identfiied on the annex line. You cannot nest annex...end blocks.
The following sample extension to a gateway entry in the configuration file shows how to configure
a SLIP interface (see Figure A7-2 on page A7-4).
%gateway
# SLIP link to the 132.245.5 net
annex 132.245.5.9
# 132.245.10.7 is a gateway to the entire 132.245.5 net
net 132.245.5.0/24 gateway 132.245.10.7 metric 1 hardwired
else
# other Annexes will route to 132.245.5 via 132.245.5.9
net 132.245.5.0/24 gateway 132.245.5.9 metric 2 hardwired
end
An extension that matches all Model 5390 servers on a given network or subnet is particularly useful
for defining a default route shared by these Model 5390 servers.
The syntax is as follows: