Patent ID: 6993010
Filing Date: 2006-01-31
Classification: H04L

Abstract:
1. A method of spoofing for use by a first modem, wherein said first modem is in a modem communication with a second modem, wherein a first point-to-point protocol (PPP) layer is in a PPP communication with a second PPP layer via said modem communication, and wherein said PPP communication includes a link configuration packet, an echo request packet and an echo reply packet, said method comprising: monitoring PPP data packets, including said link configuration packet, communicated by said second PPP layer to said first PPP layer via said modem communication; obtaining a magic number from said link configuration packet by said first modem; interrupting said PPP communication such that no PPP data packets are communicated between said second PPP layer and said first PPP layer via said modem communication; detecting said echo request packet from said first PPP layer, destined for said second PPP layer, by said first modem after said interrupting; creating said echo reply packet by said first modem in response to said detecting said echo request packet; inserting said magic number by said first modem into said echo reply packet; and responding to said echo request packet by said first modem by transmitting said echo reply packet including said magic number to said first PPP layer.