Hi,
Please enable and http and https service in the router. After you can access the device through its GUI. Issue the below commands from the configuration mode:
ip http server
ip http authentication local
ip http secure-server
Make sure that you have a local user name and password configured.
Router(config)#ip http ?
access-class Restrict http server access by access-class
accounting Set http server accounting parameters
active-session-modules Set up active http server session modules
authentication Set http server authentication method
client Set http client parameters
digest Set http digest parameters
help-path HTML help root URL
max-connections Set maximum number of concurrent http server connections
path Set base path for HTML
port Set http port
secure-active-session-modules Set up active http secure server session modules
secure-ciphersuite Set http secure server ciphersuite
secure-client-auth Set http secure server with client authentication
secure-port Set http secure server port number for listening
secure-server Enable HTTP secure server
secure-trustpoint Set http secure server certificate trustpoint
server Enable http server
session-module-list Set up a http(s) server session module list
timeout-policy Set http server time-out policy parameters
If you want, you can even setup up access-list restricting the inbound http/https access from specific IPs only.
Krishna