Comment 4 for bug 1664352

In my environment we have some dual-homed Ubuntu hosts that have one network interface with a WAN IP and one on a private network. For proper network connectivity we need to use the configurable metric value to prioritize the default route provided by the WAN connected interface over the default route (a NAT gateway) provided by the private network DHCP server. Unfortunately the current dhclient script ignores the configured metric when adding DHCP provided rfc3442 classless routes to the routing table. This patch from Tom fixes dhclient behavior for my use case.

--Matt