For (mostly) BALUG-centric view, have one may also want to have a peek at:
Some "handy"(?) information on BALUG DNS and IPs and such

IPv4 addresses (this subnet):
208.96.15.248/29 network:
208.96.15.248 network
208.96.15.249 Default Gateway
208.96.15.250 "vicki" dom0 (Xen host - Silicon Mechanics box primary IP)
208.96.15.251 (temporarily?) in use by sflug domU
208.96.15.252 sflug domU (Xen "guest" of host "vicki", sf-lug.com., etc.)
208.96.15.253 (useable - reserved for future use(?))
208.96.15.254 balug domU (Xen "guest" of host "vicki", for BALUG use (balug-sf-lug-v2.balug.org, etc.)
208.96.15.255 broadcast