For this case the firewalls DO respond to TTL(in most cases) and will show in a 
traceroute. The objective here is to colorize particular devices to easily see 
what type of devices traffic would traverse across the network. I would be 
using a database of device hostnames that when they match in traceroute they 
would be printed a particular color. Something like router=green, layer 3 
switch yellow, and firewall red. I'm just looking for a basic script to 
accomplish this. Nothing too fancy. 
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