After NAT, the Public Network Cannot Access the Server

Publication Date:  2012-07-17 Views:  91 Downloads:  0
Issue Description
After NAT is performed on the server where the Windows XP operating system (OS)is installed, the public network can access the server. However, the OS of the server is now changed to the Windows 2003 OS, the public network can access the server after NAT.
Alarm Information
None.
Handling Process
Ping the server with the source IP address (public IP address) from the firewall. The server cannot be pinged through.
Check whether the gateway is correctly configured on the server.
It is discovered that the gateway of the server is 192.168.1.253.
Change the gateway to 192.168.1.254. The problem is solved.
Root Cause
The gateway of the customer's server is incorrectly configured.
Suggestions
Note: Check whether the connectivity is normal first. Pay attention to details to avoid silly mistakes.

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