2 wan and 1 lan

xplozia · 02-06-2007, 07:48 AM

Hi.
I have 2 wan and 1 lan.
eth0=10.1.1.1
eth1=isp1 (ip fix)
eth2=isp2 (adsl ip fix)
I need eth2 backup for eth1, if eth1 is down I can use eth2, but in same time I need work both, eth1 and eth2.
I need that because i have a server with a aplication. This aplication work with 7900 port.
I redirect all eth1 traffic to local ip 10.1.1.100 (aplication). I need in same time redirect all traffic from eth2 (ppp0) to local ip 10.1.1.100:7900.
Thanks.

Brian1 · 02-06-2007, 05:42 PM

This one should help you to setup a redundent router setup.
The other part for the application should be done using iptables dnat. Set one up for each outside nic.

Brian

xjlittle · 02-06-2007, 07:34 PM

You could just bond them where you create a virtual ip by bonding eth0 and eth1 together. In this case you would redirect bond0 rather than eth0 or eth1. See the information at http://kbase.redhat.com/faq/FAQ_79_258.shtm .

Brian1 · 02-06-2007, 07:48 PM

Bonding will not work that way. The user has two different IPs. Bonding is more like trunking. You combine multiple nics but they have only one IP.

Check this link post#2 for bonding. http://www.linuxquestions.org/questi...29#post2518929
http://www.linuxquestions.org/questi...03#post2426603

Brian