Linux Dual NIC Configuration routing

Linux host original network card ETH0,IP for 172.19.74.X/24, add a network card eth1, configure another network segment of the IP 10.219.17.x/24, found their respective to the gateway, but the original 172.19.74.X segment of the host can not access the host.

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Viewing the routing table discovery, the default route goes to the new Nic eth1 up:

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To delete this default route, then add a default route to the original eth0.

Command:

Route del default GW 10.219.17.1 Dev eth1

Route add default GW 172.19.74.1 dev eth0

To view the routing table again:

[Email protected] ~]# Netstat-r

Kernel IP Routing Table

Destination Gateway genmask Flags MSS Window Irtt Iface

172.19.74.0 * 255.255.255.0 U 0 0 0 eth0

10.219.17.0 * 255.255.255.0 U 0 0 0 eth1

link-local * 255.255.0.0 U 0 0 0 eth1

Default 172.19.74.1 0.0.0.0 UG 0 0 0 eth0

It's normal.

Linux Dual NIC Configuration routing