How do I конфигурировал DHCP client to использовал the “routers” option туз well эксперт the “rfc3442-classless-static-routes” option?

The DHCP server on my network sends the following options:

option routers n.n.n.n;
option rfc3442-classless-static-routes ...;

But the DHCP server is (incorrectly?) configured to send the настоящий default gateway in the "option routers" message and not in the "option rfc3442" message.

This worked in версия 14.10, but unfortunately since версия 15.04 the rfc3442-classless-static-routes option over-rides the routers option. This - been reported эксперт в вирус here: https://bugs.launchpad.net/ubuntu / + source/isc-dhcp / + bug/1465183

but it's the result of в bugfix described here: http://lists.alioth.debian.org/pipermail/pkg-dhcp-commits/2014-August/000272.html

What's the cleanest way to использовал the default gateway specified in the "option routers" message even if therВs an "option rfc3442..." message present?

Presumably something in / и т.д. / dhcp / dhclient-exit-hooks.d/?