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Thu, 1 May 2025 04:03:09 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 286322] IPv6 doesn't work across different FIBs (epair) Date: Thu, 01 May 2025 04:03:09 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: zarychtam@plan-b.pwste.edu.pl X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D286322 Marek Zarychta changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |zarychtam@plan-b.pwste.edu. | |pl --- Comment #5 from Marek Zarychta --- (In reply to Paige Thompson from comment #4) Thanks for reporting. Please consider epair(4) to be a kind of linking devi= ce, a patchcord usually plugged between different vnet(9) contexts. In epair(4)= one can read: "epair =E2=80=93 A pair of virtual back-to-back connected Ethernet interfaces". But your experimentation looks reasonable and can be successful if both endpoints of the epair(4) device will belong to the same fib. So, please try this approach, it should work: ifconfig epair128a destroy sysctl net.fibs=3D129 ifconfig epair128 create fib 128 ifconfig epair128a inet6 fcff::a/64 ifconfig epair128b inet6 fcff::b/64 fib 128 setfib 128 ping6 -c 3 fcff::a setfib 128 ping6 -c 3 fcff::b --=20 You are receiving this mail because: You are the assignee for the bug.=