We have several Win XP clients (L2TP over IPSEC) connecting to an MS ISA VPN Server located behind our ASA. Currently there is no luck connecting those clients
Home PCs (Win VPN clients) <-----Internet----->ASA<----->MS ISA Server (VPN Server)<-----> LAN
I have entered sysopt permit vpn command but still no luck. I am thinking of trying to open IPSEC ports statically on my Outside interface ACL.
Any thoughts regarding this issue?