I have created a VPN tunnel from site A with 827 router to site B with a VPN 3030 concentrator. There is a telnet\ftp server on Site B's network, which happens to be the same server. I am able to telnet and access web servers
from site A to site B with no problem. I am also able to ftp from site B to site A
with no problem. However, I am NOT able to ftp from site A to site B and I get
a "unknown error number" message.
I do have a filter on the VPN 3030 to allow all tcp and udp ports from and to the destination.
Does anyone have any suggestions to fix this problem?
Thank you in advance for your help!