W dniu 16.05.2025 o 22:38, Kristof Provost pisze:
On 15 May 2025, at 21:32, Marek Zarychta wrote:
W dniu 15.05.2025 o 20:59, Cy Schubert pisze:
In message <[email protected]>, Cy Schubert writes:
Over the last couple of days epair(4) fails to set up when an IP address is
specified.

bob# service jail onestart test2
Starting jails: cannot start jail  "test2":
epair0a
ifconfig: ioctl (SIOCAIFADDR): Invalid argument
jail: test2: /sbin/ifconfig epair0a inet 10.1.1.70 netmask 0xffffff00 up:
failed
.
bob# ifconfig epair0a inet 10.1.1.70 netmask 0xffffff00
ifconfig: ioctl (SIOCAIFADDR): Invalid argument
bob# ifconfig epair0a inet up
bob#



This regression is caused by b61850c4e6f6.


Yes, it requires at least head up, similar to old one, known from fibs :

WARNING: Configuring address on bridge(4) member has been turned off by 
default. Consider tuning  net.link.bridge.member_ifaddrs if needed.

The error message should not suggest changing the sysctl. This is a 
configuration error and will lead to subtle and unexpected problems.

The intent is for the sysctl to go away and for this to be entirely disallowed, 
without a way to bypass the check in 16.0.

As Lexi pointed out in another e-mail: users should assign addresses to the 
bridge, never to bridge member interfaces.

—
Kristof

Thanks for the statement. Some may consider this a POLA violation. If you insist on removing the sysctl, it will require additional work to update all existing vm-bhyve and jail setups before upgrading to 16.0-RELEASE, whenever it is released.

Cheers

--
Marek


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