Add redundancy to 2 network interface card.

[jobyjames]

Hi all,

I have installed fedora core 9, on my machine. I have 3 NIC card.
eth0 - is for managing the FC9 (telnet, VNC to FC9) 10.x.x.107 (default route)
eth1 - is to connect to internet. xxx.yyy.1.111
eth2 - is to connect to internet. ppp.qqq.1.10

I want to add a redundancy to eth1 and eth2.
Packets to the outside world should always go through both the links eth1 & eth2.

1) How do I modify the routing table with "ip route add" command?
2) How do I equalize the route in eth1 and eth2?

I have tried the following commands

ip rule add from xxx.yyy.1.111 lookup 1
ip route add 77.0.0.0/24 via xxx.yyy.1.1 table 1
ip route add 0/0 via xxx.yyy.1.1 table 1

ip rule add from ppp.qqq.1.10 lookup 2
ip route add 77.0.0.0/24 via ppp.qqq.1.1 table 2
ip route add 0/0 via ppp.qqq.1.1 table 2

Please help me to solve this issue.

Thanks and regards,
Joby James.