Technically "packet" spoofing software should be incapable of generating ARP requests, but that aside, engage appears to allow you to spoof the MAC, but not forge ARP traffic. This might be more along the lines of what you want: http://www.nextsecurity.net/products...inARPSpoof.htm

Originally posted here by Relyt
Once these other tables contain the fictitious info, packets will be sent to the spoofed address. These packets could contain all kinds of sensitive information. FYI this is called the “Man in the Middle Attack” and a variant of the same is ARP Poisoning (both of which could introduce you to a cellmate called BuBBa).
ARP Spoofing is used for things other than MITM attacks (LAN-based DoS for instance) -- it is only MITM in situations where traffic is being illegitimately redirected to an unfriendly host. Technically, all ARP Spoofing is ARP Poisoning.

Originally posted here by Riot
only thing that i see wrong is that computers dont amke arp requests switches make them.
Thank you for playing, but no, you are incorrect. ALL Ethernet devices that communicate via IP make ARP requests.