Re: DNS and VPN

  • From: "Jim Harrison" <jim@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 28 Aug 2001 17:18:25 -0700

DNS and VPNThe IP connection information is passed from the VPN server to the 
calling client, not the other way around.
You'll have to manually enter that info at the server end of things.

Jim Harrison
MCP(2K), A+, Network+, PCG

  ----- Original Message ----- 
  From: Nicholas Palmer 
  To: [ISAserver.org Discussion List] 
  Sent: Tuesday, August 28, 2001 4:52 PM
  Subject: [isalist] DNS and VPN


  http://www.ISAserver.org


  Hi all, 

  I've configured a Gateway to Gateway VPN as per Tom's book and got that 
working just fine now(I had to go with PPTP instead of L2TP since I couldn't 
get the Certifcates to work correctly, but that's a different problem).  Once 
I'm connected I can sucessfully ping IP address on the other network fine.  If 
I use terminal server to connect to the remote server(the actual ISA server 
that is the VPN host also) I can ping back to my IP addresses and that works 
also :).  The one thing I can't seem to make work is DNS.  If I do a VPN in 
from my home machine to my ISA server, I get my networks DNS server, I can see 
it in the ipconfig /all results.  But if I do an ipconfig /all on either of the 
VPN servers when the connection is up, all that I get for the DNS servers are 
my local ones and 127.0.0.1.  I don't see the DNS server for the remote system. 
 Do I have to add the DNS server for the remote system manually or is there 
something in the VPN configuration that I'm missing.  Also, our server 
allocates from an IP range while the other systems server uses DHCP.  

  Thanks in advance. 
  Nick. 

  ____________________ 
  Nicholas Palmer 
  KCI Computing, Inc. 
  (nick@xxxxxxxxxxx) 



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