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PreShared key limitations for Site-to-Site VPN

What are the limitations (length / allowed characters / etc) for a PreShared key for an IPSec tunnel from a PIX to;
a) Another PIX
b) A Cisco VPN Concentrator
c) A Cisco VPN Client

I'm guessing its all the same, but can;t really find a definitive answer anywhere.

Thanks
0
gearbulk
Asked:
gearbulk
1 Solution
 
grbladesCommented:
For static VPNs :-
According to http://www.cisco.com/en/US/docs/security/pix/pix63/command/reference/gl.html#wp1027312 it can be up to 128 bytes (characters) in length.

For the cisco vpn client it works a bit differently. User authentication is used rather than relying on a shared key.
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