GRE/IPsec and DVMRP/IPsec Tunnels

In GRE/IPsec or DVMRP/IPsec connections, E Series routers initiate an IPsec connection with a remote router and can act as source and destination endpoints of the secure tunnel.

This section describes the following:

• GRE/IPsec and DVMRP/IPsec Tunnels Overview
• Setting Up a Secure GRE or DVMRP Connection Between E Series Routers
• Configuring E Series Routers to Set Up GRE or DVMRP over IPsec
• Enabling IPsec Support for GRE and DVMRP Tunnels