Cisco RV120W installed behind another router & Quick VPN

[premtank01]

Hello,

We have just installed a Cisco RV120W behind a third party firewall. All works correctly now, but we are struggling to get the Quick VPN clients connected. I have enabled port forwarding for PPTP & L2TP over IPSEC on the third party router, but still cannot connect (the RV120W was previously used as a primary router & worked perfectly). What ports do I need to open on the third party router to get this to work correctly?

Any urgent help would be appreciated!

Thanks.

[Thierry CLAUSS]

Hello,

you need to forward ports to rv120:

4500 udp, 500 udp, 443 tcp, 60443 tcp.

cordially

[premtank01]

Hi,

Thanks for your help, but that hasn't worked. Still unable to reach the RV120W!

Any other settings I'm missing?

[jasbryan]

Hi,

Qvpn doesn't support NAT-T - this is what you need when trying to connect via IPSec behind another router. If you need a vpn capable behind the another router - try using PPTP connection. you'll need to forward 1723 to RV120W router.

Jasbryan

[rmanthey]

Hello,

Even though Cisco can't support this configuration you might want to look at ESP inspect rules on the edge router. When doing a normal NAT-T you need to setup the ASA or Pix to due a fixup or inspect for those ESP packets.

Just a guess

Hope that helps.