Cisco community,
In an established IPSec VPN between a RVS4000 and IOS (2801), everything works great (RDP / UNC File Share / HTTP) - with the exception of SMTP and HTTPS.
I can do pretty much everything over the tunnel that I need, except attempting to send anything over port 25 or 443, it's getting destroyed in the tunnel.
I've completely disabled the firewall in the RVS4000 and on the IOS side, I just have an extended access list that permits the entire IP protocol. The tunnel works fine, as mentioned above, and stays up with no issues.
What could be causing the problem?
