UCLA CS 118 Project 2 Winter 2013 Authors: Mark Vismonte, Timothy Wang, Jonathan Li Date: 03/22/2013

Project Implmentation: We've created 3 additional c files: sr_arp.c, sr_ip.c, and sr_icmp.c. The bulk of our code is in these files. We've commented each of the functions and they should give you a high level overview of how our code works.

Handling Requests: In sr_handlepacket of sr_router.c, we check to see what type of ethernet packet we're handling. If it's an ARP type, then we forward the request to sr_process_arp_packet in sr_arp.c for handling. If it's an IP type, then we forwarding the request to sr_process_ip_packet in sr_ip.c for handling. We also have a handful of helper functions that are in sr_ip, sr_arp, and sr_icmp. Please take a look at those to get a better understanding of how to process each packet.