VPN Taking over DNS Query ?

ISA On Win2K/SP4, firewall/SNAT client running Win2K/SP4 behind it.  Client
can browse the web, do FTP, whatever.  Web proxy client stuff is off, IE
uses the firewall client to browse the web.  DNS is running on the ISA box
as a forwarder only, all LAN systems use the ISA for DNS.

I enabled (Microsoft) VPN on the client to connect to a Microsoft VPN server
out on the internet.  As soon as it activates, browsing and etc is slow on
the client and the ISA server cannot browse the web.  ISA server Event Log
also shows this:

"
Server publishing rule [DNS Query Server] that maps 10.10.2.1:53 UDP to
129.42.16.99:53 for protocol [DNS Query Server] failed because the port on
the external interface is being used by another application.  The Firewall
service failed to bind socket for the server on the firewall since another
process is using the same port. Check for any other process using the same
port and terminate if necessary. 
"

"
Server publishing rule [DNS Zone Transfer] that maps 10.10.2.1:53 TCP to
129.42.16.99:53 for protocol [DNS Zone Transfer Server] failed because the
port on the external interface is being used by another application.  The
Firewall service failed to bind socket for the server on the firewall since
another process is using the same port. Check for any other process using
the same port and terminate if necessary. 
"



1.  How do I get my VPN client to play nice and not take over the ISA?.

2.  How can an internal client take over the firewall service, when it had a
lock on that port initially?



Thanks.

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