Is ipv6 supported and if so what changes need to be made?
My company is preparing for the move to ipv6, there are only 215 day of ipv4 addresses and I imagine more companies will start moving soon. I know there are places that are already leasing ipv4 addresses for more than $1000USD/mo because of how hard it is to get them now.
Right now my mail server is the only thing that isn't functioning on out ipv6 network.
Search the mailing list archives. I believe someone has already done some work for IPv6 support.
For myself, I don't have to do anything special. My mail server runs on 127.0.0.25 and all traffic gets to it via PF rules that map public to private IPs. When my upstream gets his IPv6 stuff in place and I have my allocation, I'll just add a few more IPs to my external interface, add a few more PF rules, and that will be that.