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IPSec - How to

How many IPSec tunnels BEFVP41 supports
How to install a computer certificate for L2TP/IPSec VPN
How to setup Windows IPsec client
How to use Ipsecmon to view the policies of IPSec/L2TP
How to use Netdiag to view the policies of IPSec/L2TP

What are ESP and AH

How many IPSec tunnels BEFVP41 supports

Most Linksys routers support only one IPSec connection at any given time. However, it allows up to 70 IPSec tunnels pass through the router.

How to setup Windows IPsec client

To setup windows IPSec client on w2k/xp, run MMC to add IPSec Security Policies. Right-click on it to create a new IP filter. Make sure both server and client have the same settings such as IP subnet, tunnel IP and authentication methods. For consulting service, contact a consultant.

How to use Ipsecmon to view the policies of IPSec/L2TP

With a IPSec/L2TP connection , you can use the Ipsecmon utility to view the policies that are in effect. For example, you may see items similar to the following sample output for a default L2TP/IPSec connection (client-to-server or server-to-server):

Policy name: L2TP Rule
Security: ESP DES/CBC HMAC MD5
Filter name: No Name - Mirror
Source address: IP address or name of computer
Dest. address: IP address or name of computer
Protocol: UPD
Src. port: 1701
Dest. port: 0
Tunnel endpoint: <none>

How to use Netdiag to view the policies of IPSec/L2TP

Without an active IPSec/L2TP  connection, you can use netdiag to view the policy of IPSec/L2TP, for example, netdiag /test:ipsec /debug.

Note: The Netdiag tool is available after installing the Windows Support Tools package. This package is located in the Support\Tools folder on the Windows CD-ROM. After you install this package, Netdiag is located in the Program Files\Support Tools folder.

 


 

 

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