I am having an OpenVPN issue. I have a pfSense box at home configured to allow traffic through a VPN tunnel. The client computer is Windows XP Home, behind a standard Comcast connection and a Netgear wireless router. I use OpenVPN to access my work network (from where I am trying to get out of in this post) from home (with an XP Pro machine behind pfSense), and this works fine. The client config is similar but has the changes specific to my setup... Here is my XP Home config:

client
dev tun
proto tcp
remote pfsense.*.org 1194 (starred out by me)
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
cert client.crt
key client.key
ns-cert-type server
comp-lzo
verb 3

When I launch the OpenVPN GUI, the Tunnel TAP network connection turns red, and I can right-click that to connect to the server. Everything seems to work fine until I browse for the actual network. The Tunnel TAP connection turns green and it says connected to 10.1.1.6 (I have tried different IP pools here too with no luck). I can see the internal network fine, but my home network behind pfSense is not there. I have tried browsing there by using Tools > Map Network Drive, using the browser, with no success.

When I open the command line on the client and use the ipconfig -all command, I get the following:

Connection-specific DNS Suffix  . : 
Description . . . . . . . . . . . : TAP-Win32 Adapter V9 
Physical Address. . . . . . . . . : *** (starred out by me) 
Dhcp Enabled. . . . . . . . . . . : Yes 
Autoconfiguration Enabled . . . . : Yes 
IP Address. . . . . . . . . . . . : 10.1.1.6 
Subnet Mask . . . . . . . . . . . : 255.255.255.252 
Default Gateway . . . . . . . . . : 
DHCP Server . . . . . . . . . . . : 10.1.1.5 
Lease Obtained. . . . . . . . . . : Monday, March 15, 2010 1:18:37 PM 
Lease Expires . . . . . . . . . . : Tuesday, March 15, 2011 1:18:37 PM 

I noticed that the default gateway is not present. Could this be my problem? I am still relatively new to firewalls, VPN, and network configuration so I'm sure I am messing up something simple.

Oh yah, I should note that I have firewall rules configured for pfSense to allow traffic through the WAN and the LAN. At first there was just the WAN firewall rule, because that is what I got from the literature I was reading. I then created a LAN rule as well, but I'm not sure if this was correct. Neither way works, though. Screen shots below:

Any help is much appreciated.