Help with FreeBSD Bridged Firewall

[Don Bowman]

> From: William Knechtel [mailto:webmaster at endikos.com]
> Yeah, the arp cache is the problem, thanks for nailing that 
> one for me.
> However, the ipfw rule you supplied doesn't seem to want to work for
> me...  I think for the time being I'll just run a cron job every 15
> minutes or so that clears the arp cache completely.  Thanks again for
> your help!!  I really appreciate it!

you can, with sysctl, change the arp timeout period.
sysctl net.link.ether to see all of them.
net.link.ether.inet.prune_intvl/net.link.ether.inet.max_age 
changes the arp cache age time.