Date: Wed, 16 Aug 2023 02:46:55 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 262828] [carp] CARP arp replays with wrong src mac Message-ID: <bug-262828-227-dAeUgPNR9B@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-262828-227@https.bugs.freebsd.org/bugzilla/> References: <bug-262828-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D262828 --- Comment #7 from Zhenlei Huang <zlei@FreeBSD.org> --- (In reply to Ivan Rozhuk from comment #6) As @Gleb Smirnoff Has pointed out: > According to RFC826, which is current standard for ARP implementations, > the hardware address in the transmission layer does not need to match > the hardware addrees in the ARP reply packet itself. At least I can't > find any evidence in the RFC that it must or even should. Moreover, it > is mentioned in the RFC that: > "Ethernet transmission layer (not necessarily accessible to the user)" > So, RFC states that data in the Ethernet header isn't crucial for > the operation of address resolution protocol. This sysctl knob is for non-RFC-compliant devices and should be default off= , so that the change will be a NOOP to existing (RFC-compliant) setups.=20 The change is somewhat different than the original design of CARP protocol, until it is proven stable enough then let's change the sysctl knob to defau= lt on and eventually remove it. --=20 You are receiving this mail because: You are the assignee for the bug.=
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