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Date:      Sun, 28 Dec 2025 20:10:51 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 292006] dpni doesn't behave properly in a bridge
Message-ID:  <bug-292006-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292006

            Bug ID: 292006
           Summary: dpni doesn't behave properly in a bridge
           Product: Base System
           Version: 15.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: jhibbits@FreeBSD.org

Created attachment 266610
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=266610&action=edit
non-working rc.conf (14.3 and 15.0)

I have a Honeycomb LX2 board running with multiple jails.  It was running fine
with dpni0 having an IP and the bridge associating between the dpni0 and the
epair devices.  However, this no longer works with 15.0-RELEASE, the bridge
must be assigned the IP address, and everything fall from that.

With net.link.bridge.inherit_mac=1, I can access the system remotely, but can't
access any of the vnet jails connected to the bridge.

I'm attaching 2 trimmed rc.conf's, one working (rc.conf.up_good) on
14.3-RELEASE, the other non-working on both 14.3 and 15.0 (rc.conf).  If I
simply s/dpni0/ue0/g on the config, it works correctly with a USB ethernet
adapter, which led to this bug report.

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