tree 5eb992b67dc3fabeac0ab19b7d8098426d5843d1
parent 012bf4129d87110c562db745fc3ad261daac36a2
author Michael Crosby <crosbymichael@gmail.com> 1434411182 -0700
committer Jessica Frazelle <princess@docker.com> 1434414730 -0700

Get Mtu from default route

If no Mtu value is provided to the docker daemon, get the mtu from the
default route's interface.  If there is no default route, default to a
mtu of 1500.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
(cherry picked from commit ff4e58ff560d864432261a68502a8a5543145fdf)