IPSEC VPN, BT Infinity, Static IP

[w3dave]

Hi,

I am trying to set up an IPSEC site-to-site VPN with our pfSense machine.

The problem is the WAN interface is being assigned a dynamic IP by the modem / ISP meaning the tunnel breaks when the IP is renewed.

I have tried setting the interface (local endpoint) on the ipsec phase one entry to one of the virtual IP addresses however, doing this produces the following error in the ipsec log:

"charon: 02[NET] error writing to socket: Can't assign requested address"

Thanks for your help.

Notes:

• Running pfSense 2.2.1 on a machine with 2x NICS.
• ISP : BT Infinity with Open Reach Modem.  (The modem config is locked)
• pfSense WAN interface: IPV4 (PPPOE)
• Physical Connection : [DSL WALL SOCKET] –> [BT MODEM] –> [PFSENSE WAN]

[w3dave]

I have now solved this problem, detail can be found in the following post:

https://forum.pfsense.org/index.php?topic=93065.0