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To block or allow ICANN and cable

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finast

finast

Technical User
Apr 5, 2003
18
US
I wonder if anyone has any thoughts on this. I have a cable ISP with a Toshiba PCX2200 modem, Linksys BFSR41 4 port NAT router and Sygate Personal Firewall. Currently I run 2 full time computers and 2 lines I use for testing and building for a hobby. My question is about two frequent UDP's, the Internet Corporation for Assigned Names and Number (ICANN) and another from my cable company. Both incoming UDP's that come in through my NETBEUI and are blocked by Sygate. Are these either debugging somethings or am I being watched for having more than one computer. To block or not to block, that is the question. If these could help increase speed or reliability, I thought maybe I'd allow them. I'm not that knowledgable and the lingo used is what I gathered from my system. You may need more. Thanks in advance.
 
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Sygate has a backtrace and whios. This is what I got. First it says IANA, then further down it has "Internet Corporation for Assigned Names and Number". When I cut that and did a google search it came up with a bunch of ICANN stuff. I was guessing.


OrgName: Internet Assigned Numbers Authority
OrgID: IANA
Address: 4676 Admiralty Way, Suite 330
City: Marina del Rey
StateProv: CA
PostalCode: 90292-6695
Country: US

NetRange: 192.168.0.0 - 192.168.255.255
CIDR: 192.168.0.0/16
NetName: IANA-CBLK1
NetHandle: NET-192-168-0-0-1
Parent: NET-192-0-0-0-0
NetType: IANA Special Use
NameServer: BLACKHOLE-1.IANA.ORG
NameServer: BLACKHOLE-2.IANA.ORG
Comment: This block is reserved for special purposes.
Comment: Please see RFC 1918 for additional information.
Comment:
RegDate: 1994-03-15
Updated: 2002-09-16

OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName: Internet Corporation for Assigned Names and Number
OrgAbusePhone: +1-310-301-5820
OrgAbuseEmail: abuse@iana.org

OrgTechHandle: IANA-IP-ARIN
OrgTechName: Internet Corporation for Assigned Names and Number
OrgTechPhone: +1-310-301-5820
OrgTechEmail: abuse@iana.org

# ARIN WHOIS database, last updated 2003-12-23 19:15
# Enter ? for additional hints on searching ARIN's WHOIS database.
 
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Hello,

192.168.0.0 are used only for private networking and are not routed over the Internet.

For more informations, you can check RFC1918.
 
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finast:

Just for future reference, all of the following network blocks are non-routeable:

10.x.x.x
172.16.x.x
192.168.x.x


So whatever it is you're seeing, chances are they're coming from within your own network.

Want the best answers? Ask the best questions: TANSTAAFL!!
 
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