Chapter 11 Site-to-Site VPN
Create Site to Site VPN
11-2
Cisco Router and Security Device Manager 2.5 User’s Guide
OL-4015-12
If you want to learn more about VPN technology, there is background information
at the link More About VPN.
Create a Site-to-Site VPN
This option allows you to create a VPN network connecting two routers.
Create a Secure GRE Tunnel (GRE-over-IPSec)
This option allows you to configure a generic routing encapsulation protocol
(GRE) tunnel between your router and a peer system.
What Do You Want to Do?
If you want to: Do this:
Configure the router as part of a VPN network
connecting two routers.
When you configure a VPN network between two
routers, you can control how the remote router is
authenticated, how traffic is encrypted, and what
traffic is encrypted.
Select Create a site-to-site VPN . Then click
Launch the selected task.
Configure a GRE tunnel between your router and
another router.
You may want to configure a GRE tunnel if you need
to connect networks that use different LAN
protocols, or if you need to send routing protocols
over the connection to the remote system.
Select Create a Secure GRE tunnel
(GRE-over-IPSec). Then click Launch the
selected task.