Here is my home-made "Catch all" for VPN that I typically recommend/implement in my installations.
Should capture the 99 percentile of situations for you :)
JF
!
ip access-list session Guest_VPN
user any svc-l2tp permit
user any svc-esp permit
user any svc-ike permit
user any tcp 17 permit
user any udp 51 permit
user any udp 4500 permit
user any tcp 10000 10001 permit
user any udp 10000 10001 permit
!