[Bug 173444] [socket] [patch] IPV6_USE_MIN_MTU and TCP is broken

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173444

--- Comment #11 from Andrey V. Elsukov <ae at FreeBSD.org> ---
(In reply to marka from comment #9)
> (In reply to Andrey V. Elsukov from comment #7)
> RFC 6691
> 
> o  As a result, when the effective MTU of an interface varies, TCP
>    SHOULD use the smallest effective MTU of the interface to calculate
>    the value to advertise in the MSS option.
> 
> IPV6_USE_MIN_MTU=1 changes the effective MTU of the interface for this
> socket.

This is socket option and it doesn't change interface's MTU value and doesn't
affect MSS value, as I see. It just instructs the kernel explicitly do IPv6
fragmentation exactly as described in the RFC3542.

-- 
You are receiving this mail because:
You are the assignee for the bug.