[VPN] Unable to see windows domain information (WINS) using VPN

[James Archbold]

I cannot get any WINS resolution through my Cisco VPN 3000 Concentrator.

I connect to my ISP then to the VPN 3000. I can successfully establish a
tunnel and can resolve names using DNS but I cannot resolve any NetBIOS
names from my WINS servers.

The VPN box is connected to the DMZ of a PIX firewall.

I can ping the WINS servers and all IP routing is working.

I am using the Cisco VPN Client 3.6.3a.

Below is a ipconfig /all before and after the VPN connection is
established.  My IP address through the VPN is allocated from an IP pool
on a RADIUS server and my WINS configuration is also set-up from the
RADIUS server. (RADIUS server is Cisco ACS 3.1)

Before VPN connection


Windows IP Configuration

        Host Name . . . . . . . . . . . . : host
        Primary Dns Suffix  . . . . . . . : domain.napier.ac.uk
        Node Type . . . . . . . . . . . . : Hybrid
        IP Routing Enabled. . . . . . . . : Yes
        WINS Proxy Enabled. . . . . . . . : No
        DNS Suffix Search List. . . . . . : napier.ac.uk

PPP adapter ISP:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
        Physical Address. . . . . . . . . : 00-XX-XX-XX-XX-XX
        Dhcp Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : 80.225.182.70
        Subnet Mask . . . . . . . . . . . : 255.255.255.255
        Default Gateway . . . . . . . . . : 80.225.182.70
        DNS Servers . . . . . . . . . . . : 80.225.251.50
                                            80.225.252.58
        NetBIOS over Tcpip. . . . . . . . : Disabled

After connection to VPN

Windows IP Configuration

        Host Name . . . . . . . . . . . . : host
        Primary Dns Suffix  . . . . . . . : domain.napier.ac.uk
        Node Type . . . . . . . . . . . . : Hybrid
        IP Routing Enabled. . . . . . . . : Yes
        WINS Proxy Enabled. . . . . . . . : No
        DNS Suffix Search List. . . . . . : napier.ac.uk
                                            napier.ac.uk

PPP adapter ISP:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
        Physical Address. . . . . . . . . : 00-53-45-00-00-00
        Dhcp Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : 80.225.182.70
        Subnet Mask . . . . . . . . . . . : 255.255.255.255
        Default Gateway . . . . . . . . . : 80.225.182.70
        DNS Servers . . . . . . . . . . . : 146.176.1.5
                                            146.176.2.5
        Primary WINS Server . . . . . . . : 146.176.a.xxx
        Secondary WINS Server . . . . . . : 146.176.b.yyy
        NetBIOS over Tcpip. . . . . . . . : Disabled

Any ideas?