Port 8 and Ping

[Prashanth Ram <pram () CORPORATEGRAPHICS COM>]

Hi Folks..
        Okay, for approx. 8 hrs we've been scanned by 220 IP addresses. From
the frequency of the scans I am sure that it was a coordinated attack. It
also seems that all I get is 1 or 2 hits from an IP address. When I did a
lookup on these IP address most of them belonged to modems and DSL lines, so
I suppose I'm "screwed!"

This is what the log says:

Source                          Destination
204.xxx.xxx.xxx, 8, WAN         xxx.xxx.xxx.xxx 8, LAN  
172.xxx.xxx.xxx, 8, WAN         xxx.xxx.xxx.xxx, 8, LAN 
213.xxx.xxx.xxx, 8, WAN         xxx.xxx.xxx.xxx, 8, LAN 
172.xxx.xxx.xxx, 8, WAN         xxx.xxx.xxx.xxx 8, LAN  


Can someone please tell me what is on port 8 and why it's being scanned.
Also, can anyone tell me how to proceed. If it was a small number (<20) I
would not mind informing the admins of the IP addresses.. but 200 is kind of
alot of admins to contact!

Any suggestions would be great..
Thank you..
-Prashanth