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Re: The Mathematical Reality of IP Addressin in IPv4...
by Vadim Antonov 26 Aug '99

26 Aug '99

Eric Germann <ekgermann(a)cctec.com> wrote: >... when I teach my TCP/IP course, I use the >following example ... Takes them about three hours Did you try to change students? :) --vadim

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SuperWhois v2.2 update available.
by Rodney Joffe 26 Aug '99

26 Aug '99

Version 2.2 of GeekTools SuperWhois is now available at www.geektools.com under the software icon. RELEASE NOTES: 1) All 3 apps (web-based, proxy (source), and Windows client) answer for 101 g-tld and cc-tlds. 2) V2.2 takes care of all registrars in the .com .net and .org g-tlds, by first examining crsnic, then querying the relevant whois server. If you find problems, let us know. NOTE: There are a number of cc-tld whois servers that *only* provide a web interface. We're trying to work with their 'managers' to create a command-line whois. As we convince them, we'll add them. In the interim we'll try and create a set of links to them off the geektools whois page. 3) To control spammers, the daily limit per source-ip through the proxy and web versions is set at 50. If you would like this number increased, bribe us at complaints(a)centergate.com, and give us real contact information for you, plus a promise that you won't use the service for spam reasons. We monitor, and Guido and Sal enforce the rules ;-) 4) http://www.geektools.com no longer spawns a seperate browser session for applications (enough of you complained). As always, updates and suggestions to complaints(a)centergate.com -- Rodney Joffe CenterGate Research Group, LLC. http://www.centergate.com "Technology so advanced, even we don't understand it!"

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Re: The Mathematical Reality of IP Addressin in IPv4...
by Vadim Antonov 26 Aug '99

26 Aug '99

Oh, good, we got a tcp/ip kook. IETF credibility is immensely fortified. On a second thought, i'm not sure there were any credibility to start with. Not after SNMP-2 and IPv6. --vadim

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Re: The Mathematical Reality of IP Addressin in IPv4...
by Sean Donelan 26 Aug '99

26 Aug '99

>Sean, here's an answer to your question about affects of GPS rollover. > >Obviously, it's screwed up this person's clocks enough to think that >this is April 1st. Perhaps stating the obvious, but sometimes the obvious needs to be stated. Internet-Drafts is not a peer reviewed technical journal. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation

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[nsf] internet traffic engineer shaping
by k claffy 25 Aug '99

25 Aug '99

don't mean to add noise but agree this topic matters to nanog (matters way more than folks have time for it, i know) so, fwiw: the IEC project (http://iec.caida.org, inspired by listening to ispfolks articulate these concerns for last few years) in addition to relevant workshops/materials/ eventual.video.instruction online, just announced an RFP (included below) for its newly NSF-sponsored program to develop hands-on Internet Teaching Labs (ITLs) using routers and other equipment donated from vendors one of criteria in selecting candidate schools is existence of collaboration or mentoring relationships between the faculty/school and an ISP or vendor round 1 due sept 17; round 2 oct 15 vroom k -------------------------------------------------------------------- From: "Theresa Ott" <theresa(a)caida.org> To: <IEC-Faculty(a)caida.org> Subject: Internet Teaching Lab Solicitation Date: Fri, 20 Aug 1999 16:07:48 -0700 Dear Colleague, While the demand for networking engineers is growing rapidly, few networking courses include a hands-on laboratory component, often due to a lack of equipment. The Cooperative Association for Internet Data Analysis (CAIDA) is therefore expanding its Internet Engineering Curriculum (IEC) program to work with hardware vendors and Internet providers to better equip Universities to meet the needs of next generation engineers. Universities interested in adding an Internet Teaching Laboratory (ITL) to their networking courses are encouraged to submit proposals in response to the ITL solicitation located at: http://iec.caida.org/itl_solicitation.html ITL Phase I donations include roughly 100 routers, interface cards and software from Cisco Systems. Additional equipment, including CSU/DSUs and terminal servers, may also be available from additional donors. All contributions will be shipped directly to the recipient Universities, with CAIDA assisting the evaluation process, ITL implementation, and subsequent ITL collaborations. Selection of Universities will be by CAIDA's IEC Advisory Board, consisting of representatives from the commercial and academic communities. Any U.S. College or University faculty member that will be teaching networking courses during the academic year may submit proposals for a Phase I ITL facility. Parties planning to submit a proposal are encouraged to send a 1-2 page letter (email) by September 3, 1999 describing plans for an ITL. This letter of Intent will permit CAIDA personnel to notify interested institutions of the availability of any additional equipment that may assist with the planned Lab. Proposals will be reviewed in two rounds, due September 17, 1999 and October 15, 1999. Proposals not selected in the first round may be resubmitted in round 2. If your proposal is selected, the official University paperwork must be done, including a letter of commitment from the University. Proposals and questions concerning the solicitation or equipment should be submitted electronically to itl(a)caida.org. On behalf of IEC Co-PIs, kc claffy and Evi Nemeth, and myself, we look forward to your involvement in this program. Sincerely, Theresa Ott IEC Project Coordinator CAIDA For further information on the IEC project, see http://iec.caida.org or write to iec(a)caida.org.

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WWW/DNS problems
by Ryan O`Connell 25 Aug '99

25 Aug '99

Hi, Not strictly a North American problem but I was wondering if anyone had seen this behaviour. We currently have two blocks of IP address space, 195.224.206/24 and 193.193.186/23. Everything works fine from 195.224.206 but from 193.193.186 there are often problems accessing web servers - either they don't respond for ages then are suddenly OK, send just the headers in response to a GET request then stop or just plain don't respond to HTTP queries at all. This appears to happen mostly with Netscape servers although I only have a few examples so far so I'm not sure. (www.real.com, www.cisco.com, www.etrade.com, www.bt.com) We also have two lines out of the building, although I've tried routing in various ways and the problem seems to follow the IP address rather than the outbound line. (IP addresses are, for the moment, tied to the line until we get BGP on the line currently serving 195.224.206/24 however I can't see how this could be an inbound line problem.) I believe this to be a DNS problem as I can't see anything else that could be causing a problem - it doesn't seem to matter what web browser is used (IE, Netscape, Lynx or even telnet) or if a web cache (Squid) is used or not. There are three reverse DNS servers in totally different locations (One on our site, one on the UK Joint Academic Network and one in Switzerland) so I don't think part of the net being unreacable from somewhere can be the problem. The only *POSSIBLE* explanation I can come up with is that the IPv6 AAAA entries for 193.in-addr.arpa are confusing some nameservers and causing this problem. I'm really grasping at straws though - does anyone have even the slightest idea what cound be going on? (Even off-list wild-guess suggestions would be appreciated.) Thanks. --- Ryan O'Connell - http://complicity.olf.co.uk:8080/ - <nemesis(a)eh.org> How do you sleep? How do you last the night and keep the dogs at bay? How do you feel when you close your eyes, and try and drift away? Does it feel any better now? Does it mean anymore When the angel of death comes knock, knocking, And banging at your door?

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FW: Tech contact for Qwest?
by Chris Flores 25 Aug '99

25 Aug '99

---Original message---- Maybe not an appropriate topic for Nanog... but... it is becoming a sad fact that the clue level of 'internet engineers' is going down. Christian -------------------- That's a fairly strong statement to make. Large telcos/ISPs tend to through "newbie" engineers into situations where a experienced or senior engineer belongs. Let's face facts - there are not enough IP engineers/technicians to fill all the needed positions. Companies need to either have more peer review or expect the "clueless" attitude toward customers. No one could expect a entry level engineer to handle complex ISP BGP issues when they barely understand VLSM/CIDR. The industry is much larger than previous years(obvious), thus more entry level engineers. CF

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Re: FIBER CUT: Between New York, NY and Philly, PA
by Sean Donelan 24 Aug '99

24 Aug '99

SEAN(a)dra.COM (Sean Donelan) writes: >There are several reports of a fiber cut in New Jersey. Several providers >have been affected. Amazingly this missed all of our circuits, even the backup circuits, so I'm getting mostly third-hand information. The fiber was some combination of Amtrack and MCI, along a railroad track in New Jersey. A backhoe was sited in the area, but I don't have a confirmed reason for the outage. Several providers reported the Sprint NAP in Pensauken was isolated. But from my experiments (LSSR is a good thing) it appears only certain providers lost their connections to Pensauken. The NAP itself is up, and working. I've never heard if anyone was ever succesfull in getting more alternate fiber into the Sprint NAP, or if your choices were still pretty limited. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation

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FIBER CUT: Between New York, NY and Philly, PA
by Sean Donelan 24 Aug '99

24 Aug '99

I guess the rain softened the ground enough, the backhoes have come out of summer hibernation. There are several reports of a fiber cut in New Jersey. Several providers have been affected. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation

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Re: Power outage in Vienna, Virginia and other things
by Sean Donelan 24 Aug '99

24 Aug '99

PEPCO and Virginia Power reported about 10,000 customers without power this morning due to the storms moving through the area. There are lots of Internet functions concentrated in Fairfax, Herndon, Vienna, the District of Columbia; all areas with some power outages. Overall it appears providers are doing a better job of keeping stuff running. I didn't see any 'important' services go down. Maybe ISPs have finally got it? Then again maybe not. There is a fiber cut in Herndon, VA. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation

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