Blokerede ports?

Jeg har fået nogle mærklige beskeder af norton firewall om nogle indgående ting som er blevet blokeret af firewallen, måske kunne i fortælle mig lidt om hvad de pågældende ports bruges til?(jeg kender dog godt til 80-21-22 som også er blevet blokeret)

Rule "Implicit block rule" blocked (0.0.0.0,isakmp(500)).  Details:
Inbound UDP packet
Local address,service is (0.0.0.0,isakmp(500))
Remote address,service is (62.167.6.236,isakmp(500))
Process name is "C:\WINDOWS\system32\lsass.exe"

Unused port blocking has blocked communications.  Details:
Inbound TCP connection
Remote address,local service is (203.239.83.5,ms-sql-s(1433))

Unused port blocking has blocked communications.  Details:
Inbound TCP connection
Remote address,local service is (217.82.119.125,auth(113))

Denne her kommer hver gang jeg starter min computer?
Rule "Default Block UPNP" blocked (239.255.255.250,ssdp(1900)).  Details:
Inbound UDP packet
Local address,service is (239.255.255.250,ssdp(1900))
Remote address,service is (localhost,1042)
Process name is "N/A"