05-22-2001
Your routing problem is a basic issue that the host has a default gateway that points to a router/gateway that is not the right one. There are numerous ways to solve this, depending on the routing requirements.
If you are coming into the host via the second router from specific IP addresses or subnets; you simply add a static route that points at the second routers (host side) IP address (gateway) for the subnets/IPs.
This is done with the <B>ifconfig</b> command. The exact syntax of ifconfig is machine dependent, so check your man page on this command.
In a nutshell, you must tell the box you are telnetting into how to return the packets based on destination address (of the returning packets) coupled with the IP address of the gateway. This is called static routing and it the best way to go.
You need to understand (1) static routing and (2) the ifconfig command on your system.
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routes(4) Kernel Interfaces Manual routes(4)
NAME
routes - Specifies Internet routing information to the routing tables
SYNOPSIS
/etc/routes
DESCRIPTION
Static routes can be defined in the /etc/routes file. The /etc/routes file identifies static routes that are automatically added to the
network routing tables with the /usr/sbin/route add command. The /sbin/init.d/route script contains the /usr/sbin/route add command that
is executed for each entry in the /etc/routes file when the network is restarted on the system or the system is rebooted.
The general format of an entry in the /etc/routes file is: Dest Name1 Name2
The following is a brief description of each element in an /etc/routes file entry: A keyword that indicates whether the route is to a net-
work or to a host. The two possible keywords are -net and -host. The name or address of the destination network or host. Name1 can be
either a symbolic name (as used in the /etc/hosts or /etc/networks file) or an Internet address specified in dotted-decimal format. The
name or address of the gateway host to which messages should be forwarded. Name2 can be either a symbolic name (as used in the /etc/hosts
file) or an Internet address specified in dotted-decimal format.
The routes file is a Context-Dependent Symbolic Link (CDSL) and must be maintained as such. See the System Administration manual for more
information.
EXAMPLES
To specify a route to a network through a gateway host with an entry in the /etc/routes file, enter:
-net net2 host4
This example specifies a route to a network, net2, through the gateway host4. To specify a route to a host through a gateway host
with an entry in the /etc/routes file, enter:
-host host2 host4
This example specifies a route to a host, host2, through the gateway host4. To specify a route to a default gateway host with an
entry in the /etc/routes file, enter:
default 130.9.0.5
This example specifies a route to a default gateway with an Internet address of 130.9.0.5.
FILES
Contains the /usr/sbin/routed add command.
RELATED INFORMATION
Commands: route(8)
Daemons: gated(8), routed(8)
Files: gated.conf(4)
Network Administration delim off
routes(4)