Default gateway is in different subnet. How to configure in RHEL6.2

Posted by Dmytro Leonenko on Server Fault See other posts from Server Fault or by Dmytro Leonenko
Published on 2012-03-17T21:54:15Z Indexed on 2012/03/19 18:06 UTC
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linux

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networking

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rhel6

I have two subnets routed to my server from ISP. I have only one gateway ip. The gateway is on the same VLAN as my IP address. For example netowrk 1 is 1.0.0.0/24 and network 2 is 2.0.0.0/24. Both are routed to eth0 by my ISP. Gateway is 1.0.0.1. My host ip is 2.0.0.1/24 (eth0) So I can configure default gateway manually with

ip route add default dev eth0
ip route add default via 1.0.0.1

and then internet connection works properly. How do I configure it in /etc/sysconfig/network-scripts/ifcfg-eth0 ?

I tried to set GATEWAY=1.0.0.1 but it doesn't work. Tried to set GATEWAY and GATEWAYDEV in /etc/sysconfig/network and it does only what first command from listing above do.

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