mutiple network interfaces

[Krahn, Anderson]

How do I tell Amanda to use a specific network interface if 2 exist on
the system.
For instance I would like Amanda to only use the ce4 interface..
ce0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
        inet 10.20.1.181 netmask ffff0000 broadcast 10.20.255.255
        ether 0:3:ba:9a:4f:6f
ce4: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
        inet 172.23.1.73 netmask ffffff00 broadcast 172.23.1.255
        ether 0:3:ba:9a:4f:6f
Thanks,
Anderson