Hi All,
I am running MK as pptp server and connecting through a windows xp pptp client. windows xp is behind NAT. The pptp client works well if connected from public IP but if i connect behind a normal ADSL router NAT it gives error 619 while authentication.
I have already searched alot on forum, enabled pptp and gre helper..changed MTU and authentication types..but in logs it LCP timer issue.. I have attached the log as reference.
Kindly help me out..
regards,
Asad

This is not a solution - but check the manufacturer of the router doing the NAT and see if they support vpn clients behind the NAT. I know that with a PIX firewall, only the most recent software supports vpn to remote server from a nat’d inside address.
Dear elvisoswald,
I have tried different vendors, AZTech ADSL router NAT, windows xp default internet connection sharing, even through GPRS in which our cellular company provides private IPs on GPRS, but i am getting same error with same error log.
best regards,
Asad
Anyone,
Please help out!!!