Where is the central repository these days for reporting a fairly large
Smurf attack? Who is running the blackhole list?
CERT is an excellent place to start. They updated their smurf advisory,
at http://www.cert.org/advisories/CA-98.01.smurf.html.
If you want to report an incident, start with
http://www.cert.org/tech_tips/incident_reporting.html
Hope that helps..
Lance Spitzner
http://www.enteract.com/~lspitz
Internetworking & Security Engineer
Dimension Enterprises Inc