When we do a WhatismyIp on exchange server it says the IP is 220.127.116.11
It should be 18.104.22.168.
This is causing our email to be rejected from external sites due to reverse dns not returning 218. External people say are email is coming from 217. Comcast says the reverse pointer is setup correctly.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...