> I heard there was an 802.11b-based solution devised whereby you'd install a
> custom client which would obtain a pair of IPv4 addresses, one would stay
> with you till you timed out or left the network, the second one would be
> released and a fresh one subsequently be renewed along the way as per
> normal.  By this method, the data stream apparently stayed up.

This sounds like Mobile IP protocol. The fixed IP address is the home
address, the others are care-of addresses. Yes, it helps maintain
connections that assume fixed IP end-points (e.g., TCP).

http://ietf.org/rfc/rfc3344.txt

Alper

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