Date: Fri, 31 Mar 2017 01:02:36 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 173444] [socket] [patch] IPV6_USE_MIN_MTU and TCP is broken Message-ID: <bug-173444-2472-t7EgXoRmUJ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-173444-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-173444-2472@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D173444 --- Comment #11 from Andrey V. Elsukov <ae@FreeBSD.org> --- (In reply to marka from comment #9) > (In reply to Andrey V. Elsukov from comment #7) > RFC 6691 >=20 > 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. >=20 > IPV6_USE_MIN_MTU=3D1 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. --=20 You are receiving this mail because: You are the assignee for the bug.=
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