[TriLUG] source routing question

[Ryan Leathers]

What I understood:

you have multiple hosts behind 1 router
said router has uplinks to cable and dsl networks
1 host needs to use the dsl path
all other hosts use the cable path

I know how to solve this using a Cisco router.  I'm guessing non-Cisco
solutions would be similar.
The way this is handled is with route maps.  A route map matches on one or
more criteria to make a forwarding decision.  In this case it appears that
you would assign routes to 0.0.0.0 to each of the 2 uplink interfaces and
let the route maps determine which of the two to use based on source
address.

FYI in case you are doing NAT this works just fine with both NAT and NAPT.
If you think you could benefit from some route map examples with NAT send me
off list and I'll hook you up.

Ryan 

-----Original Message-----
From: Chris Bullock [mailto:cgbullock at gmail.com]
Sent: Tuesday, October 26, 2004 7:39 AM
To: trilug at trilug.org
Subject: [TriLUG] source routing question


Scenerio:
2 internet firewalls (DSL, Cable)+ 1 internal router (router)

All internet traffic currently goes out Cable, I want 1 specific host
to go out the DSL connection.  Everything I have seen involves
creating a table and I really do not want to do that.  Ideally what I
think it should look like is this on the internal router:
/sbin/ip route add default $DSL from $host
or
ip route add default via #DSL src $host

thoughts?
Regards,
Chris
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