Network issues while jails are starting

[wishmaster]

Hi,

the office's server has 6 jails and 2 bhyve virtual servers.
The problem is when I restart server, jails start for a long time (about 6 minutes). All this time the server does not acts as router, that is no packets between interfaces. From within the server packets are transmitted and received (ping works correctly), but from LAN - no.

I do not remember either this issue has appeared after upgrading to 12.0 or switching from STABLE to RELEASE branch, but this issue has been appearing for about half of year or little more.

Toggle sysctl net.inet.ip.forwarding while jails are starting don't help.

root at e-server: uname -a
FreeBSD e-server 12.0-RELEASE-p3 FreeBSD 12.0-RELEASE-p3 GENERIC  amd64

jail_enable="YES"
jail_parallel_start="NO"
jail_list="basejail jdb jphp jwww jmail jdns"
jail_reverse_stop="YES"
Any advices?

--
Vitalic