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Date:      Thu, 02 Mar 2023 07:38:06 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 269908] CARP feature breaks the network
Message-ID:  <bug-269908-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D269908

            Bug ID: 269908
           Summary: CARP feature breaks the network
           Product: Base System
           Version: 13.1-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: franklin.suvi@gmail.com

Created attachment 240523
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D240523&action=
=3Dedit
snapshot of wireshart screen

When a CARP interface is failing over from Master to Backup, it responds to
GARP announcement of the incoming-master with "Duplice use of <virtual ip>
detected" GARP packet.=20

In the attached snapshot, the machine with physical MAC VMware_a7:e3:41 is =
the
incoming-master node and the machine with physical MAC VMware_a7:0f:7f is t=
he
going-to-be-backup node.=20

I observe that when the going-to-be-backup node responds i see that the Sen=
dor
MAC address is the physical MAC address and the Sender IP Address is the
Virtual IP address.

--=20
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