Two Nic but one gateway

dsara35 · 2011-12-06 15:17:43

I am using the arch linux for one of my server. the following are the details of NIC and ipaddress

Details:

eth0="eth0 192.168.168.X netmask 255.255.255.252 "
eth1="eth1 117.X.X.X netmask 255.255.255.248" its public ip

Both has the same gateway 192.168.168.6

gateway=" default gw 192.168.168.6 eth0"

We can able to login the server and ping the gateway 192.168.168.6 but we not able ping the www.google.com(for example).

I am trying to ping -I eth1 www.google.com -> Error destination host unreachable.

My problem is i am having same gateway for both ip my route table is

route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.168.6 0.0.0.0 UG 0 0 0 eth0
117.X.X.X 0.0.0.0 255.255.255.248 U 0 0 0 eth1
192.X.X.X 0.0.0.0 255.255.255.252 U 0 0 0 eth0

I want to use inbound traffic in both ips but i want to set the all outbond traffic should be go through only in eth1. How to fix this

falconindy · 2011-12-06 17:52:39

Why not just bond the two NICs together and limit outbound traffic to half the bandwidth?

fukawi2 · 2011-12-06 22:25:34

117.x.x.x is your internet connection?
What is 192.168.168.6?

dsara35 · 2011-12-07 06:48:50

Ya 117.X.X.X is one the public ip giving to connect the radius server , 192.168.168.6 is thier private network to route the internet connection

kurych · 2011-12-07 08:13:16

I think you must try read and understand this one document: Multiple Connections to the Internet
Or search by key words: "dual homed gateway linux".

Last edited by kurych (2011-12-07 08:14:54)

Arch Linux

#1 2011-12-06 15:17:43

Two Nic but one gateway

#2 2011-12-06 17:52:39

Re: Two Nic but one gateway

#3 2011-12-06 22:25:34

Re: Two Nic but one gateway

#4 2011-12-07 06:48:50

Re: Two Nic but one gateway

#5 2011-12-07 08:13:16

Re: Two Nic but one gateway

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