Reverse DNS

Having stuff like this working is fun:

trashwall# arp -a
c-69-244-128-1.hsd1.mi.comcast.net (69.244.128.1) at 00:01:5c:22:71:82 on gem0
core-ap.home.nuxx.net (192.168.0.2) at 00:16:cb:c5:16:2f on fxp0
basement-ax.home.nuxx.net (192.168.0.3) at 00:11:24:05:7d:53 on fxp0
livingroom-ax.home.nuxx.net (192.168.0.4) at 00:11:24:0a:91:6d on fxp0
tivo.home.nuxx.net (192.168.0.6) at 00:11:d9:16:54:43 on fxp0
dhcp21.home.nuxx.net (192.168.0.21) at 00:1c:b3:b5:1b:77 on fxp0
trashwall#

The Trashwall and its associated article are nearly done. :D