Date: Wed, 31 Mar 2021 20:35:44 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 254675] ICMP Unreach needfrag is broken in 13.0-RC4 Message-ID: <bug-254675-227-yyep2dFmgX@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-254675-227@https.bugs.freebsd.org/bugzilla/> References: <bug-254675-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254675 --- Comment #3 from Alexander V. Chernikov <melifaro@FreeBSD.org> --- For the context, we have switched fastforwarding on by default: https://cgit.freebsd.org/src/commit/?id=3D8ad114c082a159c0dde95aa35d2e3e108= aa30a75 In 12.2 the codepath was ip_input() -> ip_forward() -> ip_output(), where ip_forward() created mbuf copy for the purposes of generating various ICMP messages. Fastforward code currently don't do this for performance reasons, except for the redirect usecase. As a result, we use (possibly altered) packet to generate the redirect. --=20 You are receiving this mail because: You are the assignee for the bug.=
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