Cisco HTTP Server

The conventional way to access a router is to use router lines console,auxiliary or telnet. But there is another method which is more flexible. Cisco comes with a built in web server which once enabled can be accessed from anywhere in the network through the web browser. The configuration steps are as follows:

Enable http server

RouterA(config)#ip http server

Tell the server the base path where the web server files are located. Flash memory in this case:
RouterA(config)#ip http path flash:

If you want to change the port on which the web server listens (default 80),
RouterA(config)#ip http port 8080

Authentication

To access the router through web interface you should have a level 15 authentication. The default is to use enable password/secret. To change this beahaviour, we can use:
RouterA(config)#ip http authentication local

This instructs the router to use local user databases for user authentication. After this you can login through the web interface with a username and password configured for level 15 access.

To switch back to the default authentication with enable passwords:
RouterA(config)#ip http authentication enable