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B-59
User Guide for Cisco Security Manager 3.0.1
OL-8214-02
Appendix B Site-to-Site VPN User Interface Reference
Site to Site VPN Policies
GRE Modes Page
Use the GRE Modes page to define the routing and tunnel parameters, that enable
you to configure IPSec tunneling with GRE, GRE Dynamic IP, and DMVPN
policies.
The elements that are displayed on the GRE Modes page depend on the selected
IPSec technology—GRE, GRE Dynamic IP, or DMVPN. For more information,
see Understanding IPSec Technologies and Policies, page 9-8.
Table B-21 on page B-60 describes the elements on the GRE Modes page for
configuring IPSec tunneling with GRE or GRE Dynamic IP.
Table B-22 on page B-65 describes the elements on the GRE Modes page for
configuring DMVPN.
Note When configuring a GRE, GRE Dynamic IP, or DMVPN routing policy, Security
Manager adds a routing protocol to all the devices in the secured IGP, on
deployment. If you want to maintain this secured IGP, you must create a router
platform policy using the same routing protocol and autonomous system (or
process ID) number as defined in the GRE Modes policy.
For more information about GRE and GRE Dynamic IP policies, see
Understanding GRE, page 9-86 and Understanding GRE Configuration for
Dynamically Addressed Spokes, page 9-90.
Save button Saves your changes to the server but keeps them private. To publish
your changes, click the Submit button on the toolbar.
Note To save the RSA key pairs and the CA certificates between
reloads permanently to Flash memory on a PIX firewall
version 6.3, you must configure the "ca save all" command.
You can do this manually on the device or using a
FlexConfig (see Working with FlexConfigs, page 16-40).
Close button Closes the Site-to-Site VPN window.
Help button Opens help for this page.
Table B-20 Public Key Infrastructure (PKI) Page (continued)
Element Description