How do you lock your belkin54g wireless router so other users cannot access it?

open your browser and type in http://192.168.2.1 and this will open your router settings. go to the security tab and it will either come up with your security settings or ask you to login. if it asks for your passWord, the default belkin passWord is nothing. just click continue and your passWord setting will come up. from there you can change your passWord, encryption type, security mode and guest passWord.