Run the ping command to check the routes among various NEs. If a certain NE cannot be pinged through, check the network connection. If the network connection is normal, but there is no reachable route, add the corresponding route.
Add a route whose destination IP address is 18.104.22.168/24 and next-hop IP address is 22.214.171.124 on the FTP server.
Add a route whose destination IP address is 126.96.36.199/24 and next-hop IP address is 188.8.131.52 on the switch.
Cause one: The network connection is faulty.
Cause two: The intranet server is not configured as the network extension resource on the SVN3000.
Cause three: The access control policies on the SVN3000 do not allow the user to access the network extension resource.