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Date:      Tue, 20 May 2025 22:13:15 +0200
From:      Michael Grimm <trashcan@ellael.org>
To:        freebsd-current@freebsd.org
Cc:        kp@freebsd.org
Subject:   Re: epair(4)
Message-ID:  <75A8047F-73E0-467F-8005-7CA1ADA09788@ellael.org>
In-Reply-To: <47624B57-16CA-4141-9761-A51F9E3F4078@FreeBSD.org>
References:  <20250515162552.9209B20E@slippy.cwsent.com> <20250515185919.87008219@slippy.cwsent.com> <45d0f49d-229b-46b4-af95-6e8c4c856661@plan-b.pwste.edu.pl> <2D38F889-E8C9-49A9-AA80-D5A46FDFFD02@FreeBSD.org> <6e33a247-4b2a-4f7c-8e1f-14a549db27cd@plan-b.pwste.edu.pl> <47624B57-16CA-4141-9761-A51F9E3F4078@FreeBSD.org>

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Kristof Provost <kp@freebsd.org> wrote:

> There’s no reason to ever assign IP addresses to member interfaces.

> Again, ifconfig bridge0 inet 192.0.2.1/24 is perfectly okay and will continue to work. ifconfig bridge0 addm epair0a ; ifconfig epair0a inet 192.0.2.1/24 is not.

I have read all mails in this and the other thread's mails and I am still puzzled by the wording:

> The documentation has had this warning for a long time: “If the bridge host needs an IP address, set it on the bridge interface, not on the member interfaces.“

Das "member interfaces" *include* or *exclude* the corresponding epair0b part?

In https://docs.freebsd.org/en/books/handbook/jails/#creating-vnet-jail I do find:

| exec.start += "/sbin/ifconfig ${epair}b ${ip} up";

I am following that document's way in setting up VNET jails, but I am still uncertain if the upcoming changes will allow that regarding ${epair}b?

Regards,
Michaek

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