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A simple &quot;route&quot; statement will print the routing table.<br />
<br />
First, set your default gateway. &nbsp;Then, any other routes, add manually. &nbsp; Any that you manually define will take those routes for that network, and any others take the default. &nbsp;You can only define one default, but as many other routes as you need.<br />
<br />
For manual routes, use this format, change for the actual IPs / NM, GWs involved - <br />
<br />
/sbin/route add -net 192.168.1.0 netmask 255.255.255.0 gw 192.168.168.72<br />
<br />
IMPORTANT - depending on your linux flavor, you will need to add to your route script (usually in 'etc/sysconfig/yadda&quot;, OR just place the route statements in your /etc/rc.local<br />
<br />
The rc.local executes on startup, so they will remain &quot;persistent&quot;. &nbsp;If you want to do it very correctly, lookup the file your routing statements are housed in in your flavor / release of *nix and place them there.
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A simple "route" statement will print the routing table.

First, set your default gateway.  Then, any other routes, add manually.   Any that you manually define will take those routes for that network, and any others take the default.  You can only define one default, but as many other routes as you need.

For manual routes, use this format, change for the actual IPs / NM, GWs involved -

/sbin/route add -net 192.168.1.0 netmask 255.255.255.0 gw 192.168.168.72

IMPORTANT - depending on your linux flavor, you will need to add to your route script (usually in 'etc/sysconfig/yadda", OR just place the route statements in your /etc/rc.local

The rc.local executes on startup, so they will remain "persistent".  If you want to do it very correctly, lookup the file your routing statements are housed in in your flavor / release of *nix and place them there.

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I am in a network that linux hosts with multiple interfaces ( prod, backup, management ). <br />
<br />
We have to manually route off the linux box to multiple gateways. &nbsp;<br />
<br />
How do I find duplicate routes, bad routes ect ? <br />
<br />
redhat 5+
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I am in a network that linux hosts with multiple interfaces ( prod, backup, management ). 

We have to manually route off the linux box to multiple gateways.  

How do I find duplicate routes, bad routes ect ? 

redhat 5+

linux dupicate routes and linux routing issues

The variety of Linux distributions creates myriad issues relating to configuration and operations when computers are networked, not the least of which is the use of various network management applications, some of which are included with specific distributions, while others are standalone applications.