Announcement

Collapse
No announcement yet.

Public IP address to the server

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Public IP address to the server

    Hi,

    I am currently administering a windows server 2003. I decided to make this server publicly accessible and hence I assigned a public IP address to it. Now, i am able to access it with the public IP but i lost the connectivity to that server locally within the premises. Whoever wants to access the server should now access it only through the public IP Remote desktop.

    Is there any way that people within the premises can access it through local ip address and others can access with through public ip address?

    We have fiber optic internet connection which works through WRT54GL linksys router.

    Please Help !

    Thanks in advance
    Sensug

  • #2
    Re: Public IP address to the server

    -Is there a firewall between the outside world and the server?
    -What services does the server perform?
    -Could you post a diagram or explain in detail how your Server is connected to the Internet and how the LAN is connected to the Internet?


    My initial thoughts are to put the server back where it was and just forward ports on the firewall but go ahead and answer the questions above and we'll see if that setup will suit your needs.
    Regards,
    Jeremy

    Network Consultant/Engineer
    Baltimore - Washington area and beyond
    www.gma-cpa.com

    Comment


    • #3
      Re: Public IP address to the server

      Originally posted by JeremyW View Post
      -Is there a firewall between the outside world and the server?
      -What services does the server perform?
      -Could you post a diagram or explain in detail how your Server is connected to the Internet and how the LAN is connected to the Internet?


      My initial thoughts are to put the server back where it was and just forward ports on the firewall but go ahead and answer the questions above and we'll see if that setup will suit your needs.
      Thanks for the response.

      There's a built-in firewall in the linksys router. The internet cable is directly connected to a 5 port switch and from there a line goes to the router and other one to the video conference port which we are using here. I connected this server directly to the router and manually assigned it an public ip address.

      Do you have any suggestions? How to do port forwarding with linksys router? I am absolutely new to all this, so kindly please help me.

      The router that we are using here is WRT54GL Router.

      Thanks

      Comment


      • #4
        Re: Public IP address to the server

        I'm still not clear on your network setup. Does the following diagram accurately reflect your network?
        [ATTACH]1584[/ATTACH]

        As for port fowarding, look at page 59 of the user guide http://www.linksys.com/servlet/Satel...VisitorWrapper

        And I still don't know what you use the server for so I can't tell you what ports you need to forward.
        Regards,
        Jeremy

        Network Consultant/Engineer
        Baltimore - Washington area and beyond
        www.gma-cpa.com

        Comment


        • #5
          Re: Public IP address to the server

          Originally posted by JeremyW View Post
          I'm still not clear on your network setup. Does the following diagram accurately reflect your network?
          [ATTACH]1584[/ATTACH]

          As for port fowarding, look at page 59 of the user guide http://www.linksys.com/servlet/Satel...VisitorWrapper

          And I still don't know what you use the server for so I can't tell you what ports you need to forward.
          Here goes the network connection pattern

          Internet Cable(ISP Provider)--->5 port switch---->Router1<----server

          and the server is used to host a manufacturing ERP software.

          Comment


          • #6
            Re: Public IP address to the server

            I see. Well I'm amazed that your server is accessible to the public. It seems to me that if it's behind the firewall, it shouldn't be able to route the traffic.

            No need to tell me what the IP address of the server is but can you confirm that it's not in the range of any of the following:

            10.0.0.0 - 10.255.255.255
            172.16.0.0 - 172.31.255.255
            192.168.0.0 - 192.168.255.255
            Regards,
            Jeremy

            Network Consultant/Engineer
            Baltimore - Washington area and beyond
            www.gma-cpa.com

            Comment


            • #7
              Re: Public IP address to the server

              Originally posted by JeremyW View Post
              I see. Well I'm amazed that your server is accessible to the public. It seems to me that if it's behind the firewall, it shouldn't be able to route the traffic.

              No need to tell me what the IP address of the server is but can you confirm that it's not in the range of any of the following:

              10.0.0.0 - 10.255.255.255
              172.16.0.0 - 172.31.255.255
              192.168.0.0 - 192.168.255.255
              it's not in this range.....how do we go about now?

              Comment


              • #8
                Re: Public IP address to the server

                I feel I don't have a good grasp of how your network is setup because the way it is in my mind it shouldn't work.

                I'm going to ask some clarifying questions so bear with me.

                Is the cable from the switch plugged into the "Internet" port on the back of the Linksys?
                Is the Linksys acting as a DHCP server for the LAN?
                Is the LAN gateway the Linksys router or the ISP's router/modem(cable Internet box)? (you can check this by running ipconfig on a workstation)
                Regards,
                Jeremy

                Network Consultant/Engineer
                Baltimore - Washington area and beyond
                www.gma-cpa.com

                Comment


                • #9
                  Re: Public IP address to the server

                  Have you tried NAT on that router?

                  Comment

                  Working...
                  X