Set Up Routing for Back to My Mac and iChat

To set up the automatic port mapping needed for Back to My Mac and iChat, you need to first determine which router you're using, and then follow the advice specific to it.

Determine Which Router Configuration Advice You Need to Follow

To proceed, determine which of the three descriptions below matches your target Mac's router and then follow the corresponding cross-reference. You may have different brands or models of routers at the various places where your computer are located, so you may need to follow separate configuration steps on each network where you have a target Mac.

In each of the following cases, the router allows multiple computers, using private addressing, to be reachable for remote access ...

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