partial configuration from 871
crypto isakmp policy 10
encr 3des
hash md5
authentication pre-share
group 2
crypto isakmp key ****** address x.y.z.w
!
!
crypto ipsec transform-set 3des-set esp-3des esp-md5-hmac
crypto ipsec df-bit clear
!
crypto map vpn 10 ipsec-isakmp
set peer a.b.c.d
set transform-set 3des-set
match address 102
interface FastEthernet3
!
interface FastEthernet4
ip address x.y.z.x 255.255.255.248
ip access-group 100 in
ip nat outside
ip inspect SDM_MEDIUM out
ip virtual-reassembly
duplex auto
speed auto
crypto map vpn
!
interface Vlan1
ip address 192.168.5.1 255.255.255.0
ip nat inside
ip virtual-reassembly
!
****************************************
Any help will be greatly appreciated !!!!