sysconfig changes and problems with ip route add

Linux Advanced Routing and Traffic Control

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I edited the file /etc/sysconfig/network-scripts/ifup-routes, and I add...

# Add any advanced routes
grep "^advanced" /etc/sysconfig/static-routes |
while read ignore dev args; do
if [ "$dev" = "$1" ]; then
/sbin/ip route add $args
fi
done

Then, I went to /etc/sysconfig and I created a file called static-routes with this content:
advanced eth1 194.149.216.1/32 dev vlan2 table 21
advanced eth1 194.149.216.2/32 dev vlan2 table 21
advanced eth1 194.149.216.3/32 dev vlan2 table 21
advanced eth1 0.0.0.0/0 via 10.1.0.254 table 20

Why table 21 is not loaded at boot?
:(

At 17:05 27/11/2002, Martin A. Brown wrote:
: >/etc/iproute2/rt_tables contains a mapping of human names to routing table
: >numbers. I call them table identifiers to table ids. This file does not
: >contain routes.
: So, if I understand all correctly, I don't need that file to use multiple
: route tables, do I?

You are correct. It simply maps names to numbers so that you can use
something like this if you want:

# ip route add default via 10.0.0.1 table dsl-link
# ip route add default via 10.0.0.2 table t1-link

Where the rt_tables file contains:

1 dsl-link
2 t1-link

If you do not have the file /etc/iproute2/rt_tables, you can use the
following syntax .

# ip route add default via 10.0.0.1 table 1
# ip route add default via 10.0.0.2 table 2

: I found a solution here:
: http://www.samag.com/documents/s=1824/sam0201h/0201h.htm

I've not seen this before and will have to read this article. Thanks for
the link.

I do have some general documentation on the use of "ip route" and "ip
rule" in the appendices of my documentation available here:

http://plorf.net/linux-ip/

Let me know if you find any flaws, areas for improvement, or missing
content.

-Martin

--
Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.com
Luis Miguel Cruz Miranda.
CCNA - Systems Administrator

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