RE: Nortel VPN clients behind ISA 2000

  • From: "Periyasamy, Raj" <Raj.Periyasamy@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Thu, 28 Apr 2005 12:40:01 -0400

Thanks Steffan,
I will refer the document. Very helpful. 


Regards,
Raj Periyasamy
Systems Administrator
MCSE(Messaging), CCNA


-----Original Message-----
From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxx] 
Sent: Thursday, April 28, 2005 11:46 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Nortel VPN clients behind ISA 2000

http://www.ISAserver.org

Hi Raj, 

Check out http://www.isaserver.org/articles/IPSec_Passthrough.html.

HTH, 
Stefaan 

-----Original Message-----
From: Periyasamy, Raj [mailto:Raj.Periyasamy@xxxxxxxxxxxx] 
Sent: donderdag 28 april 2005 17:36
To: [ISAserver.org Discussion List]
Subject: [isalist] Nortel VPN clients behind ISA 2000

http://www.ISAserver.org

Hi List,
Has any one successfully got to work Nortel VPN clients behind an ISA
2000
server?  Is there any known problems. I have some third party visitors
who
need access to their VPN servers through our ISA server. I have enabled
them
as SecureNAT clients, and enabled IP 50 (ESP), UDP 500, and UDP 42000 as
requested by them. Our ISA server is behind another corporate Checkpoint
firewall. I can see the first request passes through ISA on UDP 500, and
reaches the Checkpoint firewall. The second request passes through the
ISA
on UDP 500 and gets dropped in Checkpoint firewall. Is it possible to
get it
working with this configuration ?

Thanks a lot.

Regards,
Raj Periyasamy
Systems Administrator
MCSE(Messaging), CCNA






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