[CentOS] Multiple Internet facing Nics - Gateway issue

Doug Coats dcoatshca at gmail.com
Thu Jul 2 04:50:51 UTC 2009


I am convinced that my iproute2 tables are all messed up....In fact I found
some errors in my initial post.

# ip rule list
0:      from all lookup 255
32766:  from all lookup main
32767:  from all lookup default

/etc/iproute2/rt_tables
#
# reserved values
#
255     local
254     main
253     default
0       unspec
#
# local
#
#1      inr.ruhep
200 Cable
201 T1
So Cable and T1 are not even showing up in the list.

When I run my ip commands from the command line I get the following results
for each line.

# ip route add 173.11.51.44/30 dev eth2 src 173.11.51.45 table Cable
# ip route add default via 173.11.51.45 table Cable
# ip route add 173.11.51.44/30 dev eth2 src 173.11.51.45
RTNETLINK answers: File exists
# ip route add default via 173.11.51.46
RTNETLINK answers: File Exists
# ip rule add from 173.11.51.45 to default lookup Cable
RTNETLINK answers: Numerical result out of range

# ip route add 67.152.166.0/27 dev eth3 src 67.152.166.2 table T1
# ip route add default via 67.152.166.2 table T1
# ip route add 67.152.166.0/27 dev eth3 src 67.152.166.2
RTNETLINK answers: File Exists
#  ip rule add from 67.152.166.2 to default lookup T1
RTNETLINK answers: Numerical result out of range
So the first few lines run fine for each table and then I start getting
errors.  Are these all the commands that I need to use to set this up?  I
know that when I first entered them by hand the T1 and Cable showed up in
the tables list.  Am I going crazy?
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