Cisco Systems C819HG4GVK9, C819GUK9 manual Configure the IKE Policy, 13-3

Chapter 13 Configuring a VPN Using Easy VPN and an IPSec Tunnel

Configuration Tasks

Note The Cisco Easy VPN client feature supports configuration of only one destination peer. If your application requires the creation of multiple VPN tunnels, you must manually configure the IPSec VPN and Network Address Translation/Peer Address Translation (NAT/PAT) parameters on both the client and the server.

Configuration Tasks

Perform the following tasks to configure your router for this network scenario:

•Configure the IKE Policy, page 13-3

•Configure Group Policy Information, page 13-5

•Apply Mode Configuration to the Crypto Map, page 13-6

•Enable Policy Lookup, page 13-7

•Configure IPSec Transforms and Protocols, page 13-8

•Configure the IPSec Crypto Method and Parameters, page 13-8

•Apply the Crypto Map to the Physical Interface, page 13-10

•Create an Easy VPN Remote Configuration, page 13-10

An example showing the results of these configuration tasks is provided in the “Configuration Example” section on page 13-12.

Note The procedures in this chapter assume that you have already configured basic router features, as well as PPPoE or PPPoA with NAT, DCHP and VLANs. If you have not performed these configurations tasks, see “Basic Router Configuration” section on page 5-1.

Note The examples shown in this chapter refer only to the endpoint configuration on the Cisco 819 router. Any VPN connection requires both endpoints be configured properly to function. See the software configuration documentation as needed to configure VPN for other router models.

Configure the IKE Policy

Perform these steps to configure the Internet Key Exchange (IKE) policy, beginning in global configuration mode:

SUMMARY STEPS

1.crypto isakmp policy priority

2.encryption {des 3des aes aes 192 aes 256}

3.hash {md5 sha}

4.authentication {rsa-sig rsa-encr pre-share}

5.group {1 2 5}

	Cisco 819 Integrated Services Routers Software Configuration Guide
OL-23590-02		13-3