How to Configure Router Ports for Skype


If your router supports universal plug and play, or UPnP, Skype automatically configures the port it needs. Sign in to your router and check the box to enable UPnP. To configure your router for Skype without UPnP, you need to know the IP address and media access control, or MAC, address of your computer's network connection. Using these addresses, you must create a dynamic host configuration protocol, or DHCP, reservation for your computer. Then you must designate and forward a port to your computer's IP address and set up Skype to use that port.

Determine IP and MAC Addresses

  • Press the Windows Start key, type "cmd" and press "Enter" to launch a command prompt in Windows 8. Click "Start" and then "Run..." in Windows 7, next type "cmd" and press "Enter."

  • Type "ipconfig/all" at the command prompt to display information about the network settings on your computer. Notice that some blocks of information only have about four to six lines and others have 15 or more lines. Skip over the blocks with only four to six lines of data.

  • Locate the block for your active network connection. Look for a block labeled "Ethernet adapter Local Area Connection" or something similar if you're using a wired connection. Look for a block labeled "Wireless adapter Local Area Connection" or something similar if you're using a wireless connection. Choose a block that has values on the Physical Address and IPv4 Address lines.

  • Write down the six combinations of two letters and numbers separated by dashes on the line labeled Physical Address, for example, "00-3B-67-23-A5-CB." Next, write down the value on the IPv4 Address line; for example, ""

  • Type "Exit" and press "Enter" to close the command prompt.

Add DHCP Reservation and Forwarded Port

  • Navigate to the login screen for your router and sign in to the device with the administrator username and password.

  • Navigate to the network settings for your router and locate the DHCP Server Settings section. Locate the option that enables you to add a DHCP reservation and select it to add a new reservation.

  • Type the value from the IPv4 Address line you recorded in the previous section in the IP Address box; for example, "" Type the value you recorded from the Physical Address in the previous section, but replace the dashes with colons. For example, type "00:3B:67:23:A5:CB." Save the entry and make sure it is enabled. Choose "Reboot Later," "Cancel" or a similar option if you're prompted to reboot the router.

  • Navigate to the Advanced Network options for the router and locate the Port Forwarding section. Choose a port number between 1,025 and 65,535 that isn't already in the list of ports being forwarded; for example, port 34249.

  • Add a new port to be forwarded. Type "Skype" for the name and type the value you recorded from the IPV4 Address line as the IP address; for example, ""

  • Set up the port number you chose to be forwarded for TCP communication, such as 34249, according to your router's interface. For example, you might enter the port number in a box labeled TCP and leave the UDP box blank, or you might enter the port number twice, in a FROM and TO box and choose TCP as the protocol.

  • Make sure the port forwarding you added is enabled and save it. Reboot your router, wait one minute and then reboot your computer.

Configure Skype to Use Forwarded Port

  • Launch Skype on your computer. Choose "Allow Access" if Windows Firewall asks you to grant outgoing permission to Skype. Select "Tools" and "Options" from the menu bar.

  • Choose "Connection" under the Advanced options.

  • Type the port you forwarded, such as "34249," in the first box labeled "Use Port for Incoming Connections." Uncheck the box labeled "Use Port 80 and 443 As Alternatives for Incoming Connections." Uncheck the box labeled "Enable UPnP" and choose "Save."

Tips & Warnings

  • If you use Skype on more than one computer, you must repeat the steps for every computer that uses Skype.
  • The user interfaces for configuring DHCP reservations and port forwarding on routers vary considerably from one manufacturer to another. Consult your router's documentation to determine the exact steps to follow for the brand and model of router you have.

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  • Photo Credit wavebreakmedia/iStock/Getty Images
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