Weblog entry #62 for ajt

Two nics on Debian Sarge?
Posted by ajt on Wed 6 Dec 2006 at 16:13
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At work we are in the middle of migrating our IP range.

We have two boxes that are currently being test migrated. One of them is a Red hat 7 box with two nics one on the new network and one on the old, the default gateway being only the old network. I can SSH to it on either IP address from either network.

The second box is running Debian Sarge also has two nics and two IP addresses. By default it comes up with two default gateways, and we have connectivity issues with it. We can tinker with the routing tables, but can't get it to function stably on BOTH networks at the same time. The same routing arrangment as the RedHat box does not seem to work.

I think the RedHat box is actually recieveing data on one nic and sending on the other or sending and recieving on the same. This may not be the most secure behaviour, but it's very helpful.

I just need to figure out how to make the Debian box do the same.......

 

Comments on this Entry

Posted by Anonymous (59.176.xx.xx) on Thu 7 Dec 2006 at 03:18
Read up on multipath/policy routing (http://www.debian-administration.org/articles/377)

PJ

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Posted by ajt (204.193.xx.xx) on Thu 7 Dec 2006 at 08:44
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Ta, will have a read.

--
"It's Not Magic, It's Work"
Adam

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Posted by Anonymous (82.152.xx.xx) on Wed 13 Dec 2006 at 16:35
Or read the LARTC HOWTO, specifically this page: http://lartc.org/howto/lartc.rpdb.multiple-links.html

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