Firewall Wizards mailing list archives
Re: egress/ingress filtering
From: Bill_Royds () pch gc ca
Date: Fri, 16 Feb 2001 12:06:00 -0500
The following entries on the 65/8 IP block show that is belongs to the @home cable modem empire so it seems the 24/8 block is almost used up. Blocking it becuase it was "reserved" would soon mean that you would block cable modem users (which might be alright with your security policy though :-)). point% dig -x 65.0.0.0 ; <<>> DiG 8.3 <<>> -x ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUERY SECTION: ;; 0.0.0.65.in-addr.arpa, type = ANY, class = IN ;; AUTHORITY SECTION: 0.0.65.in-addr.arpa. 1D IN SOA nocns.home.net. hostmaster.home.net. ( 102071649 ; serial 1H ; refresh 20M ; retry 1W ; expiry 1D ) ; minimum ;; Total query time: 82 msec ;; FROM: point to SERVER: default -- 127.0.0.1 ;; WHEN: Fri Feb 16 12:03:33 2001 ;; MSG SIZE sent: 39 rcvd: 119 point% whoNS home.net The Data in Network Solutions' WHOIS database is provided by Network Solutions for information purposes, and to assist persons in obtaining information about or related to a domain name registration record. Network Solutions does not guarantee its accuracy. By submitting a WHOIS query, you agree that you will use this Data only for lawful purposes and that, under no circumstances will you use this Data to: (1) allow, enable, or otherwise support the transmission of mass unsolicited, commercial advertising or solicitations via e-mail (spam); or (2) enable high volume, automated, electronic processes that apply to Network Solutions (or its systems). Network Solutions reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy. Registrant: Home Network (HOME5-DOM) 425 Broadway St. Redwood City, CA 94063 US Domain Name: HOME.NET Administrative Contact, Technical Contact: Kiewlich, Daniel (DKF336) abuse () HOME COM @Home Network 425 Broadway St Redwood City, CA 94063 US 650-556-5399 650-556-6666 Billing Contact: Du, Trung (TD2157) trung () CORP HOME NET @Home Network 425 Broadway Street Redwood City, CA 94063-3126 650-569-5437 (FAX) 650-569-5100 Record last updated on 14-Dec-2000. Record expires on 19-May-2006. Record created on 18-May-1995. Database last updated on 15-Feb-2001 20:35:21 EST. Domain servers in listed order: NS1.HOME.NET 24.0.0.27 NS2.HOME.NET 24.2.0.27 "Crist Clark" <crist.clark () globalstar com> on 02/15/2001 06:34:34 PM To: "Irwin R. Naumann" <irwin () thinkage ca> cc: firewall-wizards () nfr com(bcc: Bill Royds/HullOttawa/PCH/CA) Subject: Re: [fw-wiz] egress/ingress filtering Because "Reserved" does not mean what you think in all cases. For example, Ms. Irwin put up a list of "reserved" IP addresses at the conference. For the conference, she had had to submit her slides months in advance. I noticed that some of the "reserved" blocks she mentioned, IIRC 65/8 is an example, were no longer reserved. In the time since she had completed her slides, that block had been assigned. In fact, CERT/CC, http://www.cert.org/tech_tips/whois_by_ipaddr.html Has not kept all of their docs up to date. Note the differences between it and the ISI URL you give above. _______________________________________________ firewall-wizards mailing list firewall-wizards () nfr com http://www.nfr.com/mailman/listinfo/firewall-wizards
Current thread:
- egress/ingress filtering Irwin R. Naumann (Feb 15)
- Re: egress/ingress filtering Crist Clark (Feb 16)
- <Possible follow-ups>
- RE: egress/ingress filtering shewitt (Feb 16)
- Re: egress/ingress filtering Bill_Royds (Feb 16)
- Re: egress/ingress filtering Crist Clark (Feb 16)
- Re: egress/ingress filtering Ryan Russell (Feb 17)
- Re: egress/ingress filtering Crist Clark (Feb 16)
- Re: egress/ingress filtering Irwin R. Naumann (Feb 16)
- Re: egress/ingress filtering Crist Clark (Feb 16)