Configuring E Series Routers to Set Up GRE or DVMRP over IPsec

You can configure the E Series routers to set up the GRE or DVMRP tunnels.

The main configuration tasks for setting up GRE or DVMRP over IPsec on E Series routers are:

Set up the GRE or DVMRP tunnel by specifying the virtual router and destination address and enabling IPsec support. See Configuring IP Tunnels .
Set up digital certificates on the router or configure preshared keys for IKE authentication.
- To set up digital certificates, see Configuring Digital Certificates.
- To set up preshared keys, see Configuring IPsec Parameters in Configuring IPsec.
Create IPsec policies. See Defining an IKE Policy in Configuring IPsec.
Configure IPsec transport profiles. See Configuring an IPsec Transport Profile.