- Prevent outgoing messages / firewalls.
 - ICMP time exceeded in transit
- Packet throttling:
 - packets per second.
- UDP brokenness?

dynamic templates ideas:

dynamic magichost [x]
add magichost use windowsxp if source os = windows [x]
add magichost use linux if source ip = 192.168.0.0/16 [x]
add magichost use invisible if time between 12:00am - 5:00am
add magichost otherwise use default 
