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VPN Client on Internal LAN

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VPN Client on Internal LAN - 15.Mar.2002 2:04:00 PM   
Guest
Hi,

I have a Cisco Systems VPN Client on my internal LAN that needs to connect to a server outside my lan going through my adsl.

They are a SecureNAT Client at the moment, and that works fine. but this doesn't

As for as I have been told I just need to open port 5001.

Any ideas anyone.. anything at all?

Cheers
Andy
  Post #: 1
RE: VPN Client on Internal LAN - 15.Mar.2002 3:35:00 PM   
spouseele

 

Posts: 12830
Joined: 1.Jun.2001
From: Belgium
Status: offline
Hi Andy,

check out http://www.isaserver.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=2;t=002752

Regards,
Stefaan

(in reply to Guest)
Post #: 2
RE: VPN Client on Internal LAN - 30.May2002 8:05:00 AM   
camdeal

 

Posts: 1
Joined: 30.May2002
Status: offline
The URL below does not work. Do you have a working URL ???

Thanks !

Cam

quote:
Originally posted by spouseele:
Hi Andy,

check out http://www.isaserver.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=2;t=002752

Regards,
Stefaan


(in reply to Guest)
Post #: 3
RE: VPN Client on Internal LAN - 30.May2002 9:34:00 PM   
spouseele

 

Posts: 12830
Joined: 1.Jun.2001
From: Belgium
Status: offline
Hi Cam,

on 27 May the site was re-vamped and the forums are moved. The link is now http://forums.isaserver.org/ultimatebb.cgi?ubb=get_topic;f=2;t=002752

So, whenever you see an old one replace 'www.isaserver.org/cgi-bin' with 'forums.isaserver.org'. [Big Grin]

Some other links about the same subject:
- http://forums.isaserver.org/ultimatebb.cgi?ubb=get_topic;f=2;t=001902
- http://forums.isaserver.org/ultimatebb.cgi?ubb=get_topic;f=2;t=002752
- http://forums.isaserver.org/ultimatebb.cgi?ubb=get_topic;f=13;t=000503
- http://forums.isaserver.org/ultimatebb.cgi?ubb=get_topic;f=13;t=000495
- http://forums.isaserver.org/ultimatebb.cgi?ubb=get_topic;f=13;t=000570

The basic setup is:

1. Create two protocol definitions:
- UDP Port 500 Send Receive : this is for the IKE protocol (key negotiation).
- UDP Port XXXX Send Receive : this is for the UDP encapsulated ESP packets. The administrator of the VPN gateway should be able to tell you the exact portnumber to use.

2. Next, create a protocol rule who allows those two created protocols.

3. One thing you must keep in mind is that the client must be a SecureNAT client and that the firewall client must be disabled when setting up the VPN connection. Also, when certificates are involved disable filtering of IP fragments on ISA.

BTW --- in general, any IPSec implementation who supports NAT Traversal or UDP encapsulated ESP should work from behind ISA.

HTH,
Stefaan

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Post #: 4
RE: VPN Client on Internal LAN - 31.May2002 12:12:00 AM   
sniper

 

Posts: 687
Joined: 9.Aug.2001
From: OK, USA
Status: offline
there is a new cisco VPN the install exe is VPN-500-win-2000-xp-5.2.1-3des-k9.exe

I have not tested it from behind ISA yet

(in reply to Guest)
Post #: 5

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