MÉTODO E EQUIPAMENTO PARA VERIFICAÇÃO DE MENSAGEM DE LIBERAÇÃO DE PROTOCOLO DE CONFIGURAÇÃO DINÂMICA DE HOSPEDEIRO (DHCP)

摘要

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.