Corporate Headquarters

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Comprehensive Configuration Examples
cablelength 10
dsu bandwidth 44210
clock source internal
no cdp enable
crypto map s1first
!
ip route 10.1.4.0 255.255.255.0 Tunnel0
!
access-list 101 permit gre host 172.17.2.4 host 172.24.2.5
!
line con 0
transport input none
line aux 0
line vty 0 4
login
!
end
Remote Office Router Configuration
ro-rtp# 
show running-config
Building configuration...
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname ro-rtp
!
boot system flash bootflash:
boot bootldr bootflash:c7200-jk9o3s-mz.123-3
boot config slot0:ro-rtp-cfg-small
no logging buffered
!
crypto isakmp policy 1
authentication pre-share
lifetime 84600
crypto isakmp key test12345 address 172.17.2.4
!
crypto ipsec transform-set proposal1 ah-sha-hmac esp-des esp-sha-hmac 
mode transport
!
!
crypto map s1first local-address Serial1/0
crypto map s1first 1 ipsec-isakmp
set peer 172.17.2.4
set transform-set proposal1 
match address 101
!
interface Tunnel1
bandwidth 180
ip address 172.24.3.6 255.255.255.0
no ip directed-broadcast
tunnel source 172.24.2.5
tunnel destination 172.17.2.4
crypto map s1first
!
interface FastEthernet0/0
ip address 10.1.4.2 255.255.255.0

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Cisco IOS VPN Configuration Guide
OL-8336-01
Chapter 3 Site-to-Site and Extranet VPN Business Scenarios