Method and apparatus for verification of dynamic host...

Details Method and apparatus for verification of dynamic host... Method and apparatus for verification of dynamic host...

H - Electricity

04

L

H04L 29/12 (2006.01)

Patent

CA 2689671

An apparatus and method for verification of a DHCPRELEASE message comprising extracting a IP address from the ciaddr field of the DHCPRELEASE message, determining a tunnel-associated IP address, comparing the IP address and the tunnel-associated IP address to determine if there is a match, and releasing the IP address if there is a match, and wherein the tunnel-associated IP address is the IP address associated with the tunnel from which the server receives the DHCPRELEASE message.

La présente invention concerne un dispositif et un procédé pour vérifier un message DHCPRELEASE comprenant l'extraction d'une adresse IP à partir d'un champ ciaddr du message DHCPRELEASE, la détermination d'une adresse IP associée à un tunnel, la comparaison de l'adresse IP et de l'adresse IP associée à un tunnel pour déterminer s'il y a une correspondance et la libération de l'adresse IP s'il y a une correspondance, l'adresse IP associée à un tunnel étant l'adresse IP associée au tunnel à partir duquel le serveur reçoit le message DHCPRELEASE.

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