AppendixB Site-to-Site VPN User Interface Reference
Site to Site VPN Policies
B-54
User Guide for CiscoSecurity Manager3.0.1
OL-8214-02
Navigation Path
Open the Site-to-Site VPN Manager Window, page B-2, select a topology in the
VPNs selector, then select Preshared Keyin the Policies selector.
Note You can also open the Preshared Key page from Policy view. For more
information, see Managing Shared Site-to-Site VPN Policies in Policy View,
page 9-56.
Related Topics
•Configuring Preshared Key Policies, page9-76
Field Reference
TableB-19 Preshared Key Page
Element Description
Key Specification
User Defined Click to use a manually defined preshared key, then enter the
required preshared key in the Key field.
Auto Generated Click to allocate a random key to the participating peers. This
ensures security because a different key is generated for every
hub-spoke connection. Auto Generate is the default selection.
Note The key is allocated during the first deployment to the
devices and is used in all subsequent deployments to the
same devices, until you select the Regenerate Key(Only in
Next Deployment) check box.
Key Length The required length of the preshared key to be automatically
generated (maximum 127 characters).
Same Key for All Tunnels Unavailable in a point-to-point VPN topology.
Select this check box to use the same auto-generated key for all
tunnels.
If you do not select this check box, different keys are used for the
tunnels, except in cases, such as DMVPN configuration, when
different multipoint GRE interfaces in the same network must use
the same preshared key.