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Cisco Router and Security Device Manager 2.5 User’s Guide
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CHAPT ER
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DMVPN
These help topics provide information about Dynamic Multipoint Virtual Private
Network (DMVPN) configuration screens.

Dynamic Multipoint VPN

This wizard will help you to configure your router as a Dyn amic Multipoint VPN
(DMVPN) hub or DMVPN spoke. A typical VPN connection is a point-to-po int
IPSec tunnel connecting two routers. DMVPN enables you to create a network
with a central hub that connects other remote routers, referred to as spokes using
a GRE over IPSec tunnel. IPSec traffic is routed through the hub to the spokes in
the network. Cisco SDM allows you to configure your router as a primar y or a
secondary DMVPN hub, or as a spoke router in a DMVPN network.
The following link contains more information about DMVPN (requires CCO
login ID).
Multipoint IPSec VPNs
Cisco SDM supports the configuration of a hub-and-spoke DMVPN that u ses
IPSec profiles to define encryption. You can configure a fully-meshed DMVPN,
and use crypto-maps to define encryption in the DMVPN using the CLI. Fully
meshed DMVPNs and DMVPNs using crypto maps are managed a nd modified
using the CLI. Cisco SDM supports the configuration of a DMVPN starting from
IOS version 12.2(13)T.
Cisco SDM supports the configuration of a single DMVPN on a router.
In this screen, identify your router as a hub or as a spoke in the DMVPN network.