I've setup my ipfw firewall on Mac Snow Leopard. In checking my console logs, I continually get this message:
Stealth mode connection attempt to UDP 10.8.4.14:(port) from ip address
The ip addresses are almost always the following ones
I looked up these addresses with http://whois.domaintools.com/
Some interesting results:
22.214.171.124 Russian Federation Ojsc Uralsvyazinfor
126.96.36.199 United States South Lake Tahoe Reliablehosting.com - Network Services
(Interesting message afterwards)
1 website uses this address. (example: uktranssexual.com)
188.8.131.52 United States Sarah
184.108.40.206 United States College Station Texas A&m University
220.127.116.11 Spain Barcelona Jazztel Triple Play Services
18.104.22.168 United States South Londonderry Fairpoint Communications I
22.214.171.124 United States Meadville Armstrong Cable Service
126.96.36.199 United States Milford Road Runner Holdco Ll
188.8.131.52 Spain Filnet Serveis I Comunicacions
184.108.40.206 United States Charlotte Carolina Internet Ltd
220.127.116.11 Taiwan Taipei Nextlink Ltd
There are more but I guess it's not worth posting?
What's most interesting is 18.104.22.168. There are many repeat occurrences of this. Almost all repeat at some point in the log, but this one in particular is quite often.
What are these connection attempts and should I be concerned?