When I ping the other end of the VPN tunnel I get the followin message :-
CRYPTO-4-IKMP_BAD_MESSAGE: IKE message from 22.214.171.124 failed it
s sanity check or is malformed....
I am using a Cisco 803 with c800-k9osy6-mw.122-8.t5.bin, which is the only version I could get it to work with .The others all crashed the router (s). I have tried different routers as I have 13 in all but no joy. I have set up many ADSL 827 routers with no problems but the ISDN version is causing problems. The other end of the vpn is a 1751 and I have tried other routers (3660) with the same results. Has anybody had this problem ?