06-07-2009 08:45 AM - edited 03-04-2019 05:00 AM
Hi,
Are any VPN Modules required to configure site-to-site VPN on Cisco ISR Routers ? What are VPN modules for ?
06-07-2009 09:26 AM
ISR (1800/2800/3800) have a build-in encryption acceleration card but require Cisco IOS Software Advanced Security or higher feature set to enable it
If you want the best performance for those boxes, AIM-VPN modules are recommended:
HTH
Laurent.
06-07-2009 10:00 AM
Thanks.
Could you please also mention the difference between the performance on built-in encryption acceleration card and the AIM-VPN Modules for e.g. in case of 2821 routers.
Are the VPN modules visible from outside the router after installation or are they seated inside the router.
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