[ale] new box crashes when nmapped

[jimpop at yahoo.com (Jim Popovitch)]

I've got a new RH ES 3 box setup (pretty much default settings) and when
I nmap it from a second host it freezes and needs to be cold booted.

Here's what I am doing:

  nmap -PT -p 1- 192.168.3.6

I can't imagine that this is normal or expected behavior.  Any ideas on
what could be happening?

Tia,

-Jim P.