Saturday, February 21, 2009

How Do I Forward Internet Port(Port Forwarding)?

Introduction:-
Port forwarding refers to opening of closed port so that two or more application over internet can communicate with each other.You can think port as the way through which an application can communicate/reach to you that' why we need port 80 for http page telnet for 23 and ftp for 21.

Port forwarding for different modem/router is different but the theme remain the same in most modem/router.

WAY ONE
:-
  • Steps for port forwarding:-
  1. Go to your browser and type 192.168.1.1(default page for router/modem setting).
  2. In here type the username and password(commonly it is set to admin, admin).
    NOTE:- in case username and password is not admin then you can see it on the backside of your router/modem or can call your service provider.
  3. Now you will see the home page of your router in here click advanced link.
  4. in advanced page click port forwarding link which will take you to the page which is similar to the page shown below
    port forwarding forum of router/modem
    the page which you see above is present in almost all router/modem in addition to this some routers also provide you to forward ports directly for some common services like website(at 80), telnet(at 23), smtp(at 25) and many more.
    In here type
    • rule name :- any thing
    • protocol:- depending on port to forward(generally tcp/udp)
    • port start:-port to farward
    • port end:-same as port start
    • port map:- same as port start.
  5. Now apply the change and save all the setting so that after resetting your modem/router your setting remain the same.
WAY TWO:-

  • In case you are not able to forward port using the above defined technique or not able to find port forwarding link:-
  1. Go to google, yahoo or whatever search engine you use.
  2. Now in search box type port forwarding "company name of router/modem" "model no." To search the article regarding port forwarding for your router.
  3. In case you don't Understand the second point OR not able to search the article for your router then go to portforwarding.com and check some other router of the same company as your router for help.
    NOTE:-If even now you are not able to forward your ports then ask your ISP to do it for you.

3 comments:

  1. you can ask guy if you are not able to get any information on forwarding your modem.

    ReplyDelete
  2. hi, im using Wireless Broadband Connection, Running on DHCP, which changes my ip every time i connect to the internet. so my question is that can we forward port with dynamic ip ? or do we need to go to static ip

    ReplyDelete
  3. It Depends upon the modem/router you are using because in some router/modem port forwarding is done on
    1. your ip address in lan eg. 192.168.1.4(see your network connection)
    2. your real ip(watch your real ip at http://whatismyip.com).
    so if you have modem with 1st condition than it's ok you don't need to again forward ports once forwarded.

    ReplyDelete

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