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Hi
I am trying to setup symetrical routing to a mutlihomed linux box.
Basically I haev a linux box with 3 interfaces front, back and backup
=46rom another pc (3-4 hops away )) I would like to be able to ping both
the front and have the return path take the same route.
so server
eth0 10.124.167.21/24
eth1 10.124.168.21/24
eth3 192.168.8.21/24
my ip rules looked something like
0: from all lookup local=20
19999: from all lookup main=20
20000: from 10.124.167.21 lookup 250
20001: from 10.124.168.21 lookup 251
20002: from 192.168.8.21 lookup 252
32766: from all lookup main
32767: from all lookup 253
tab 250
default via 10.124.167.254 dev eth0
tab 251
default via 10.124.168.254 dev eth1
tab 252
default via 192.168.8.254 dev eth2
tab main
192.168.8.0/24 dev eth2 proto kernel scope link src 192.168.8.21
10.124.167.0/24 dev eth0 proto kernel scope link src 10.124.167.21=20
10.124.168.0/24 dev eth1 proto kernel scope link src 10.124.168.21=20
192.168.0.0/16 via 192.168.8.254 dev eth2=20
127.0.0.0/8 dev lo scope link=20
tab 253
default via 10.124.167.254 dev eth0
Now this all works fine, my next step was to add secondary addresses to
the interfaces.
So I want to add=20
10.124.167.12 to eth0
I added another ip ru line as well
ip ru add from 10.124.167.12 table 250
Again this worked fine, my next step is what if I want to add multiple
(5-6) ip addresses can I cover it all with this ip ru
ip ru add from 10.124.167.0 table 250
I have tried this but it did not work. Do I need to make it=20
ip ru add from 10.124.167.0/24 table 250
or do I have to add an entry for each ip address bount to that
interface??
Thanks
Alex
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