Network topology shown below:
Router - - - -Eudemon- - - - - -100E Switch - - - - - - PC
Among them, the Router and Switch are peer vendor’s equipment. Eudemon100E configured to be transparent mode, its system IP is 192.168.2.254/24, the IP address is used for management. Customer requires through the Web to login and manage the firewall. Firewall enabled Web management function, configured user name, password, service type (Web), service level (level3) and complete all configuration about Web in AAA view. Since then, compare with the operation manual, configure IE (IE6.0 and above), tools - > Internet options - > advanced - > use HTTP1.1 (selected). However, can’t login the firewall through the Web interface at this time, prompts "unable to display the Web page".
Eliminate firewall configuration error, from PC ping 192.168.2.254 (firewall system IP), can ping pass, check the IE Settings of PC, tools - > Internet options - > connection - > LAN Settings - > proxy server - > use a proxy server for LAN, found that the proxy server is selected, the problem was out here. After remove the selected, can login and access the firewall normally through the Web.
1, whether the firewall’s own configuration about Web management has omissions or inappropriate. This problem does not exist.
2, from PC whether can ping 192.168.2.254 (system IP). Can ping.
3, check whether the configuration of IE has problems. It has, so the problem is caused by the proxy server.
Through the Web to login and manage the firewall, must be sure the IE is configured correctly, otherwise it may waste the time in checking the firewall configuration problem.