[Bug 269908] CARP feature breaks the network

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 13 Mar 2023 16:48:06 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=269908

--- Comment #8 from Zhenlei Huang <zlei@FreeBSD.org> ---
(In reply to franklin.suvi@gmail.com from comment #3)
> Steps followed:
> 1.  Configure CARP on Machine 1. 
>     ifconfig nic0 vhid 1 pass testing alias 10.10.4.19/28 advskew 10
>     This box becomes the MASTER
> 2.  Configure CARP on Machine 2. 
>     ifconfig nic0 vhid 1 pass testing alias 10.10.4.19/28 advskew 20
>     This box becomes the BACKUP
> 3.  Re-configure CARP on Machine 1, to trigger a failover.
>     ifconfig nic0 vhid 1 pass testing alias 10.10.4.19/28 advskew 30
>    Since now the advskew value of Machine 1 is higher than the Machine 2's value,  
>  Machine 1 will become the BACKUP and Machine 2 will become the MASTER. 

I'm able to repeat this on 13.1-RELEASE.

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