setting up an ipsec VPN on cisco Router

Posted on 2013-12-17
Medium Priority
Last Modified: 2014-03-20
I have a Cisco RV180 VPN router. I am trying to set up a IPSEC VPN for Remote units to connect to. thus far i cannot get anything to connect. I do have the PPTP VPN working but the Cellular routers (sixnet sn-6801) will not connect.

My The Cisco is behind a adsl modem who's lan ip is
Port Forwarding is set up to the Cisco Router at

The Following ports are being forwarded, 1723, 500, 47, 443, 1701 from the router to the cisco.

The Cisco is set to an internal ip of

I have tried using my Iphone as a test an i can connect to the pptp vpn with it over the cellular network but get no response when i try to use the IPSec settings.

How would i go about setting up an ipsec connection?
Question by:beckredder
LVL 72

Accepted Solution

Qlemo earned 200 total points
ID: 39724465
IPsec with NAT-T uses 500/udp, 4500/udp and protocol 50 (ESP), but the latter should be encapsulated in the IPSec packets. Make sure that the NAT-T port can pass (no ACLs; forwarding not required).

Author Comment

ID: 39724825
i have added those ports to the forwarding list but it has not had any discernible effect.

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