Definition

foreign network

In the Mobile Internet Protocol (Mobile IP), a foreign network is any network other than the home network to which a mobile device may be connected.

Because standard Internet routing mechanisms deliver all traffic to a device's home network, it was once necessary to change a mobile device's IP address each time it connected through a foreign network. To overcome this drawback, the Internet Engineering Task Force (IETF) has developed the Mobile IP standard and several enhancements to it.

Related glossary terms: virtual area network (VAN), 10-high-day busy period (10HD busy period), graceful degradation, online, softswitch, maximum transmission unit (MTU), traffic shaping (packet shaping), Dialed Number Identification Service (DNIS), WATS (wide-area telephone service), mail user agent (MUA)

This was last updated in April 2007

Posted by: Margaret Rouse

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Articles
Resources from around the Web
- SearchNetworking.com has an article about "Managing safe and secure remote connections."
- The foreign network is described in IETF RFC 2002.

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