And other miscellaneous programs

• arpoison-0.5.tar.gz -- Poison your friend/enemy's ARP cache.  Works with Libnet 1.0.x.
• arpoison-0.6.tar.gz -- Works with Libnet 1.1.x.
• ARPoison requires LibNet, which is available @ http://www.packetfactory.net/Projects/Libnet/
• arpidote.pl -- Matt's perl front-end.

• arpdump arpdump.c
• rarp_client.c -- Linux RARP client
• arpme.c -- get an ARP entry
• stpdump.c -- print Spanning Tree Protocol packets
• iptohex.c -- print an IP in hexadecimal
• tcp_reset.c -- send TCP reset packet

Related articles

• http://packetstorm.decepticons.org/papers/general/Altering_ARP_Tables_v_1.00.htm
• 2600 Magazine 18:3 p.41 "An introduction to ARP Spoofing"
• http://rr.sans.org/threats/spoofing.php
• http://www.killerteam.hpg.ig.com.br/switches.htm -- en espanol!