Packet Bouncer Overview

A bouncer bounces packets it receives from clients to servers. This is useful when people want to hide their internal network topologies. In this report, we examine a very simple case of bouncer — a bouncer that only bounces ICMP requests. When it receives an ICMP echo request, it modify the packet and forward it to the server specified by the user. After receiving the echo reply packet, it
again modifies the packet and finds out where to send the packet and then sends out the reply packet.

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