[Bug 206721] FreeBSDs DHCP client(dhclient) does not support the interface-mtu option(option 26).

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206721

jimp at pfsense.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jimp at pfsense.org

--- Comment #10 from jimp at pfsense.org ---
There does not appear to be a way to disable or override this behavior, even
using supersede in the dhclient.conf doesn't let you turn it off or set an
alternate value. My ISP sends a bogus MTU value of 576 which was ignored
before, but now gets set and leads to major connectivity issues since the MTU
should be 1500.

The link bounces when the MTU is set as well, at least on e1000. I see dhclient
was changed to help cope with that but it also affects other things that key
off link up/down events.

Any chance this can be reopened and the change backed out until it can be made
optional, perhaps by a command line parameter to dhclient? This will probably
impact a number of people unexpectedly on upgrade.

-- 
You are receiving this mail because:
You are on the CC list for the bug.