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Cisco 819 Series Integrated Services Routers Software Configuration Guide
OL-23590-02
Chapter 9 Configuring Security Features
Configuring VPN
DETAILED STEPS
Command or Action Purpose
Step 1
interface type number
Example:
Router(config)# interface tunnel 1
Router(config-if)#
Creates a tunnel interface and enters interface
configuration mode.
Step 2
ip address ip-address mask
Example:
Router(config-if)# 10.62.1.193
255.255.255.252
Router(config-if)#
Assigns an address to the tunnel.
Step 3
tunnel source interface-type number
Example:
Router(config-if)# tunnel source
fastethernet 0
Router(config-if)#
Specifies the source endpoint of the router for the
GRE tunnel.
Step 4
tunnel destination
default-gateway-ip-address
Example:
Router(config-if)# tunnel destination
192.168.101.1
Router(config-if)#
Specifies the destination endpoint of the router for
the GRE tunnel.
Step 5
crypto map map-name
Example:
Router(config-if)# crypto map static-map
Router(config-if)#
Assigns a crypto map to the tunnel.
Note Dynamic routing or static routes to the
tunnel interface must be configured to
establish connectivity between the sites.
Step 6
exit
Example:
Router(config-if)# exit
Router(config)#
Exits interface configuration mode and returns to
global configuration mode.
Step 7
ip access-list {standard | extended}
access-list-name
Example:
Router(config)# ip access-list extended
vpnstatic1
Router(config-acl)#
Enters ACL configuration mode for the named
ACL that is used by the crypto map.