Date: Tue, 28 Jan 2025 20:45:29 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 143666] [ip6] [request] PMTU black hole detection not implemented Message-ID: <bug-143666-7501-chljnzA1KN@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-143666-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-143666-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D143666 Michael Tuexen <tuexen@freebsd.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|Open |Closed Resolution|--- |FIXED CC| |tuexen@freebsd.org --- Comment #7 from Michael Tuexen <tuexen@freebsd.org> --- I think this can be closed, since PMTU balckhole detection is now implement= ed. >From tcp.4: pmtud_blackhole_detection Enable automatic path MTU blackhole detection. = In case of retransmits of MSS sized segments, the = OS will lower the MSS to check if it's an MTU problem. If the current MSS is greater than the configured value to try (net.inet.tcp.pmtud_blackhole_mss and net.inet.tcp.v6pmtud_blackhole_mss), it will be set to this value, otherwise, the MSS will be s= et to the default values (net.inet.tcp.mssdflt and net.inet.tcp.v6mssdflt). Settings: 0 Disable path MTU blackhole detection. 1 Enable path MTU blackhole detection for IPv4 and IPv6. 2 Enable path MTU blackhole detection only for IPv4. 3 Enable path MTU blackhole detection only for IPv6. --=20 You are receiving this mail because: You are the assignee for the bug.=
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