Refer to the exhibit:
crypto ipsec transform-set transform esp-des
mode tunnel
!
crypto map tmap 10 ipsec-isakmp
set peer 20.1.1.1
set transform-set transform
match address 101
crypto map tmap
!
interface Ethernet0/3
description OUTSIDE
ip address 20.1.1.2 255.255.255.252
crypto map tmap
!
access-list 101 permit udp host 20.1.1.2 eq 1701 host 20.1.1.1 eq 1701
Which VPN solution does this configuration represent?