LapLink MN-LGD011-XX-US manual Checklist for Internet connections, Enable a TCP/IP port in LapLink

Checklist for Internet connections

The computer you want to connect to must have its In- ternet address published by an Internet directory, and you must know what the address is

Connect over Internet is designed for connecting to a com- puter whose Internet address is “published” to the LapLink IILS server. To set up the computer for this kind of connec- tion, click Internet Directory Options (Options menu) and type an e-mail address or other unique identifier to be pub- lished as the computer’s Internet address. Let other LapLink users connect by sharing the address with them.

TIP Set up Internet Directory Options to have the address published automatically. Or publish the address yourself, when you are online: on the Connect menu, click Publish My Internet Address.

TIP If you are connecting to a computer whose IP address you know, use Connect Over LAN (Network) instead to sup- ply the IP Address.

Both computers must be on the Internet and running LapLink

It doesn’t matter how it’s done—by dialing in to an ISP or connecting over a high-speed connection—but both com- puters must be connected to the Internet before they can connect using Connect over Internet. LapLink must be run- ning on both computers.

Enable a TCP/IP port in LapLink

To connect over the Internet in LapLink, a TCP/IP network port must be enabled—that is, made available for use in LapLink. To enable a TCP/IP port in LapLink, click Port Set- up (Options menu). Click TCP/IP in the Ports list and then check the Enable Port box.

Check the security setup on the host computer

If you receive a “not authorized” error message, be sure to change the security setting on the host from the default of “Private System”. Access security settings from the Options menu, then choose Security. To learn more about allowing connections, go to chapter ”Allowing incoming connections.

Internet connections between computers behind fire- walls may require special configuration

Without proper configuration, LapLink connections over the Internet may be prevented if either of the computers is be- hind a firewall or router. This may be a personal router appli- ance, or a corporate network’s firewall.

To facilitate LapLink connections over the Internet, LapLink has registered port 1547 with the Internet Assigned Num- bers Authority. This port is used by the host computer. To al- low LapLink connections through a firewall, a network administrator should forward port 1547 to the internal (pri- vate) IP Address of the LapLink Gold computer behind the firewall or router.

NOTE If you have any questions about your corporate network, consult your network administrator.

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