How to define default gateway with multiple DHCP interfaces?

Posted by DrumEater on Ask Ubuntu See other posts from Ask Ubuntu or by DrumEater
Published on 2012-06-18T15:10:54Z Indexed on 2013/07/01 16:30 UTC
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dhcp

How does ifconfig determine which network interface to use as the default when DHCP assigns a default route for each NIC? It seems like it's in a race-condition and I need to have a more reliable solution. Is there a setting in /etc/network/interfaces that could define the preferred gateway? I read about "metric" but that did not seem to function.

10.04 LTS Server with two NICs on a managed network. IP addresses are assigned via DHCP which I do not manage.

eth0 is assigned a private NAT address; eth1 is assigned a public IP.

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