two new jails on different jail hosts with same macaddrs, networking between not working well

[Don Jackson]

I created two very similar VNET jails on two jail-hosts (each running 12.2-RELEASE), and I can't get them to see/talk to each other.

AFAICT, for some reason, they both have the same mac address, which doesn't seem correct:

svr3% sudo iocage get vnet0_mac kafka

003048d977cb 003048d977cc

svr4% sudo iocage get vnet0_mac kafka

003048d977cb 003048d977cc

And my router (an OpenBSD box, sees the same thing:

arp -a | grep 132.20

192.168.132.201                      00:30:48:d9:77:cc    em0 19m59s

192.168.132.202                      00:30:48:d9:77:cc    em0 11m4s

I've spent several days on this, and not making much progress.

Here are links to all the interesting fliles from each of these two servers:

https://dcj.github.io/iocage/config.json.svr3.txt

https://dcj.github.io/iocage/config.json.svr4.txt

https://dcj.github.io/iocage/ifconfig.svr3.txt

https://dcj.github.io/iocage/ifconfig.svr4.txt

https://dcj.github.io/iocage/iocage-get-all.svr3.txt

https://dcj.github.io/iocage/iocage-get-all.svr4.txt

https://dcj.github.io/iocage/rc.conf.svr3.txt

https://dcj.github.io/iocage/rc.conf.svr4.txt

https://dcj.github.io/iocage/sysctl.conf.svr3.txt

https://dcj.github.io/iocage/sysctl.conf.svr4.txt

I've been running iocage jails on both FreeBSD and FreeNAS for several years, and have some Ansible-based tooling that makes this consistent, and I've  never had this issue before.

Just prior to creating these jails, I did upgrade each of these jail-hosts to 12.2-RELEASE via freeebsd-update, and these are the first jails I've created on 12.2

Any help or advice would be greatly appreciated.