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Thu, 12 Feb 2026 12:41:36 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: bugs@FreeBSD.org Subject: [Bug 293136] net.route.hash_outbound not automatically enabled for locally originated traffic over multipath ECMP routes Date: Thu, 12 Feb 2026 12:41:36 +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: 15.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: zarychtam@plan-b.pwste.edu.pl X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc attachments.created 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: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D293136 Marek Zarychta changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |zarychtam@plan-b.pwste.edu. | |pl --- Comment #1 from Marek Zarychta --- Created attachment 268003 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D268003&action= =3Dedit patch_v12.diff Thank you for the investigation and for reporting the issue officially! As we were previously discussing on IRC, this will never be a problem if ke= rnel is built with options RSS, so probably either people who need and use ECMP = run FreeBSD with such kernels, or people don't use ECMP at all. I spent some time chasing this problem and found that the multipath routes installed by BIRD bypass the current logic, leaving outbound hashing disabl= ed. Please try the attached patch; it's probably the same one we discussed on I= RC, but it gained a bit of polishing. We definitely need melifaro@ to take a closer look at this problem. --=20 You are receiving this mail because: You are the assignee for the bug.=