I am facing a problem with port forwarding on Cisco router 2801.
2801 is configured with Site-to-Site VPN and DMVP.
crypto isakmp policy 50
crypto isakmp key xxx address 188.8.131.52
crypto ipsec transform-set NSET esp-3des esp-sha-hmac
crypto map vpn 1 ipsec-isakmp
set peer 184.108.40.206
set transform-set NSET
match address 150
ip address 10.10.70.1 255.255.255.0
ip nat inside
ip address 220.127.116.11
ip nat outside
crypto map vpn
! ip nat is overloaded from fa0/1
ip nat inside source static tcp 10.10.70.50 3389 interface FastEthernet0/1 3383
ip nat inside source static tcp 10.10.70.60 3389 interface FastEthernet0/1 3384
ip nat inside source static tcp 10.10.70.70 3389 interface FastEthernet0/1 3385
access-list 150 permit ip 192.168.203.0 0.0.0.255 10.10.70.0 0.0.0.255
We have several offices that have 881 ISR routers. Those are configured in the same manner.
I am currently behind such a device with 192.168.203.0/24 internal subnet.
So, VPN connections work like a charm. Everything is pingable, users connect to servers behind 2801 through VPN.
Some users need to access servers behind 2801 when they out of their offices. For this reason I need to configure port forwarding.
As I enter "ip nat inside source static tcp 10.10.70.50 3389 interface FastEthernet0/1 3383" users who sit behind 881s lose an ability to connect to 10.10.70.50's RDP. I have checked, port forwarding is working fine. 10.10.70.50 is also pingable from 192.168.203.0/24 subnet over VPN (the same in other offices). But no one can connect to servers over VPN.
Please, anyone help me to solve this trouble!
Thanks in advance.
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