[LARTC] 2 gateway on linux

Linux Advanced Routing and Traffic Control

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Hi friends,
 
I have linux box redhat 8.0. it has four port dlink card. I have 2 isps. now i want to configure 2 ips on this ethernet card.
 
example
eth0 = 192.168.0.10/ 255.255.255.192  isp 1 (public ip)  gateway = 192.168.0.1
eth1 = 172.16.0.10/ 255.255.255.240  isp 2 (public ip)    gateway = 172.16.0.1
 
now i m giving
 
ip route add default via 192.168.0.1  then ....all traffic is going to isp1 link
but then from www.tracert.com i cant ping or trace my isp2 ip that is 172.16.0.10
 
if i do  this
 
ip route add default via 172.16.0.1 then ...all traffic is going to isp2 link
but then from www.tracert.com i cant ping or trace my isp1 ip that is 192.168.0.10
 
so can any body tell me what should i do in this case. I want this both isps ip address to live on internet. i want to pass some traffic on isp1 link and some traffic on isp2 link.
 
what will the routing???  how do i configure 2 gateways so that both ip can be live on internet.
 
waiting for kind reply.
Thanks,
Joel n.Solanki
 
Systems Engineer
D2V ISP Pvt Ltd.
Vadodara.
 

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