I have a router 1812.
I have a VPN with another 1812 router.In my network I have a webmail server on 172.31.5.0/24 subnet. For users to be able to access my inside webmail, 172.31.5.5, from outside I have a nat rule:
ip nat inside source static tcp 172.31.5.5 443 126.96.36.199 443
188.8.131.52 is my public IP, and 172.31.5.5 is my webmail
And for accessing SDM from outside I have to use another port becouse 443 is alreary redirected to my internal webmail.
So I use 4433:
ip nat inside source static tcp 172.31.5.254 443 184.108.40.206 4433
172.31.5.254 is my router inside interface
The problem is that if somebody from the ather side of the VPN try to connect to SDM is not working. I have a NAT Traversal also.
How can I solve this? Is there a more simple way to solve this ?