[TriLUG] 2 default routes

[jason at monsterjam.org]

hey, setting up a server for a friend which has 2 network interfaces.
One on the inside lan with a bogus 10.x.x.x address.. the outside interface has a valid routable 
ip adderss. The inside interface is natted through a firewall to the internet. that works fine 
and dandy.. BUT, when I run my vlc server on the ouside interface, and contact it from a host on 
the internet, the outside interface gets the packet, but seems to route it out its default 
gateway through the inside interface. I understand the problem, but what im trying to figure out 
is how to do something like 
http://linuxcult.blogspot.com/2006/05/how-can-i-have-two-default-routes.html

but I keep getting errors when trying to implement the commands ..

eth0      Link encap:Ethernet  HWaddr 00:16:35:B0:D3:1F  
          inet addr:10.1.22.44  Bcast:10.1.255.255  Mask:255.255.0.0
eth1      Link encap:Ethernet  HWaddr 00:16:35:B0:D3:1E  
          inet addr:208.11.172.91  Bcast:208.11.172.95  Mask:255.255.255.224

badger ~ # cat /etc/iproute2/rt_tables
#
# reserved values
#
255     local
254     main
253     default
0       unspec
#
# local
#
#1      inr.ruhep
222 vlc


badger ~ # ip route add table vlc default via 208.11.172.65     <--this doesnt work
RTNETLINK answers: File exists

badger ~ # ip route add table vlc default via 208.11.172.65 metric 1  <-this works 
but im not sure if its right.

badger ~ # ip route add default via 208.11.172.65 dev eth1 table vlc <-need to get this to work
RTNETLINK answers: File exists


the error is ambiguous at best. and searching google doesnt yield much of anything thats 
helpful.  any ideas how to implement this?

badger ~ # ip route show table main
208.11.172.64/27 dev eth1  proto kernel  scope link  src 208.11.172.91 
10.1.0.0/16 dev eth0  proto kernel  scope link  src 10.1.22.44 
127.0.0.0/8 dev lo  scope link 
default via 10.1.0.1 dev eth0 
default via 208.11.172.65 dev eth1  metric 1 
badger ~ # 


Jason

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|    Jason Welsh   jason at monsterjam.org        |
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