altitudeman,
Yes, we can help. 1st, what firmware version are you using? I've found version 1.4 to work excellent on teh FSV318.
Like the previous post, you will need a way to make those dynamic address to static or what I call sudo static. I recommand Dyndns.org as you can select this option right in the router configuration. This way you know it will update correct.
Also, place the LAN sides on difference subnets. Easy to do. Do it like the pevious post suggests.
Now you'll need to enter setup the VPN. Here's a setup you can follow.
Site 1 on with the LAN IP setup using DHCP. IP Range 192.168.1.1 thru 192.168.1.100
==================================
VPN Settings - Main Mode
Connection Name : VPNWORKS
Local IPSec Identifier : SITE1.DYNDNS.ORG
Remote IPSec Identifier : SITE2.DYNDSN.ORG
Tunnel can be accessed from: any local address
Local LAN start IP Address (nothing is entered here)
Local LAN finish IP Address (nothing is entered here)
Local LAN IP Subnetmask (nothing is entered here)
Tunnel can access: a subnet of remote address
Remote LAN start IP Address : 192.168.2.1
Remote LAN finish IP Address (nothing is entered here)
Remote LAN IP Subnetmask : 255.255.255.0
Remote WAN IP or FQDN : SITE2.DYNDSN.ORG
Secure Association : Main Mode
Perfect Forward Secrecy : Enabled
Encryption Protocol : DES
PreShared Key : XYZVPNKEY
Key Life Seconds : 3600 Seconds
IKE Life Time : 28800 Seconds
NETBIOS Enable
Site 2 on with the LAN IP setup using DHCP. IP Range 192.168.2.1 thru 192.168.2.100
==================================
VPN Settings - Main Mode
Connection Name : VPNWORKS
Local IPSec Identifier : SITE2.DYNDNS.ORG
Remote IPSec Identifier : SITE1.DYNDSN.ORG
Tunnel can be accessed from: any local address
Local LAN start IP Address (nothing is entered here)
Local LAN finish IP Address (nothing is entered here)
Local LAN IP Subnetmask (nothing is entered here)
Tunnel can access: a subnet of remote address
Remote LAN start IP Address : 192.168.1.1
Remote LAN finish IP Address (nothing is entered here)
Remote LAN IP Subnetmask : 255.255.255.0
Remote WAN IP or FQDN : SITE1.DYNDSN.ORG
Secure Association : Main Mode
Perfect Forward Secrecy : Enabled
Encryption Protocol : DES
PreShared Key : XYZVPNKEY
Key Life Seconds : 3600 Seconds
IKE Life Time : 28800 Seconds
NETBIOS Enable
It's really that simple.