IPSec VPN site-to-site pfSense + Cisco ISA500

vetim

Hello guys, I am using this awesome pfSense since 1 week and I couldn't be happier with it :)

Actually I have it running on a remote Datacenter and has 1 public fix IP for the WAN and one LAN ( 192.168.1.0 /24 ) with IP 192.168.1.1 ( acts as default gateway for the server )

I have also a Windows Server 2012 running and uses the pfSense as gateway and works perfectly, i can browse the internet etc etc.

So the scenario is:

pFsense
WAN: 144.x.x.x
LAN: 192.168.1.0 /24

Cisco ISA500:
WAN: 46.x.x.x
LAN: 192.168.20.0 /24

I need to setup IPSec VPN site to site because will use this server as our DC server from our office, so we need a secured connection.

I have done all the necessary steps on the pFSense to setup the IPSec VPN.

When it comes to the Cisco ISA500 I do all the steps but when I define the local network and remote network and I press OK it says:
A policy already exists for this Local Network and Remote Network.

Does anyone know why this happens ?

Thanks to all!!!

vetim

Hello to all, we have fixed the problem. It was due to another VPN active with same subnets. We changed networks and all is working perfectly now!