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simple question as always..
by mhirse＠UU.NET 10 Mar '98

10 Mar '98

They seem to using access-list on their gateway routers. That would explain your problem. Mohamed Dear nanog, could someone explain to me why I can ping but traceroute seems to have problem reaching it. i.e. ping -s auth3.ipass.com. 64 bytes from holmes.ipass.com (204.198.128.102): icmp_seq=0. time=352. ms yet traceroute ... 6 s2/2-decker-hi.digisle.net (167.216.156.57) 147 ms 149 ms 148 ms 7 s2/2-decker-hi.digisle.net (167.216.156.57) 205 ms * 147 ms 8 * s2/2-decker-hi.digisle.net (167.216.156.57) 152 ms * 9 s2/2-decker-hi.digisle.net (167.216.156.57) 148 ms * 159 ms 10 * s2/2-decker-hi.digisle.net (167.216.156.57) 148 ms * 11 s2/2-decker-hi.digisle.net (167.216.156.57) 177 ms * 161 ms ... thnx in adv. tatsuya = = = = = = BEEOCB 03-3239-0607 fax 03-3239-2609 business network telecom http://www.giganet.net

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simple question as always..
by Tatsuya Kawasaki 10 Mar '98

10 Mar '98

Dear nanog, could someone explain to me why I can ping but traceroute seems to have problem reaching it. i.e. ping -s auth3.ipass.com. 64 bytes from holmes.ipass.com (204.198.128.102): icmp_seq=0. time=352. ms yet traceroute ... 6 s2/2-decker-hi.digisle.net (167.216.156.57) 147 ms 149 ms 148 ms 7 s2/2-decker-hi.digisle.net (167.216.156.57) 205 ms * 147 ms 8 * s2/2-decker-hi.digisle.net (167.216.156.57) 152 ms * 9 s2/2-decker-hi.digisle.net (167.216.156.57) 148 ms * 159 ms 10 * s2/2-decker-hi.digisle.net (167.216.156.57) 148 ms * 11 s2/2-decker-hi.digisle.net (167.216.156.57) 177 ms * 161 ms ... thnx in adv. tatsuya = = = = = = 電話 03-3239-0607 fax 03-3239-2609 business network telecom http://www.giganet.net

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Re: Local Exchanges?
by Steven Huter 10 Mar '98

10 Mar '98

Joel Sadler wrote: > b. If there is no such list, I'd really like to get it started. The Exchange Point info Bill Manning maintains also includes local IXs in Asia, Africa, Middle East, ALyC, etc. It would be more helpful to just contribute to keeping those all of those pages current. Regards, Steve Huter, NSRC http://nsrc.org/

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Routing policies
by Ben Buxton 09 Mar '98

09 Mar '98

As some of you may not be aware, several traditional class A address ranges have been allocated to various NICs who are then sub-allocating them in blocks of /19. One of these is 61/8. I've been allocated one of these (68.8.0/19), and have been trying to get it routed properly on the net. However numerous providers filter almost all of the class A space at /8, rendering these allocations fairly useless. I've mailed a couple of providers and they've kindly changed their policies to allow for this. Can all providers please update their filter policies to allow for these /19 chunks? I know there is at least 24/8 and 61/8 but there may be more. Thanks -- Ben Buxton_____________________ o _ _--_|\ ZIP Internet P/L Zip Guy bb(a)zip.com.au /____|___|_)________/______\______________________ Voice: 9270-4777 | . \_.--._* Virtually Dial-in: 9247-7288, 9247-9144 Fax: 92475276 v the best :)

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Local Exchanges?
by Joel Sadler 09 Mar '98

09 Mar '98

hola, I have been searching for, and unable to find a "definitive" list of local exchanges. I've got Bill Manning's <http://www.isi.edu/div7/ra/NAPs/naps_na.html>, but I've seen announcements of more then a few exchanges that aren't on that list. What I'd like is to ask that one of the following things happen: a. If you know of such a definitive list, and I just haven't found it, let us all know. b. If there is no such list, I'd really like to get it started. I'll commit to maintaining it regularly for at least 18 months. I really don't care where it's "housed." I think that such a list being incomplete is to our detriment. Granted, there are far worse problems, but ... The benefits of such a list would seem to speak for themselves. I have my own reasons for wanting the data, but think that a collected list like this would benefit quite a few more people then myself, if they can only find it. Before I get too much further with this, I'd like to define what I mean by a local exchange: - inter-provider traffic exchange for a mutually agreed upon geographic area/region. No backbone transit expected, but may be provided for an extra fee. Examples would be: SIX <http://www.altopia.com/six>, BNAP <http://www.baltimore-nap.net>, and AMAP <http://zanett.alaska.net/~mattm/amap>. I am not looking for PAIX's, MAE's, etc. Local exchanges, IMHO, are not concerned with getting packets across the country - rather, they are more interested in keeping traffic within the same geographic region to keep it off the backbone to begin with. Here's what I'd like to propose: If you are a member of such an exchange, and your exchange's charter doesn't forbid it, please drop me a line with the details outlined below. If there is something in your charter forbidding such an "admission", please take it up with the other members of the exchange and try to get it ok'd. I'll drop the list a line after ISP-Con, with either a URL or a cry of frustration. Lastly, if you've got suggestions, flames, or chocolate, please feel free to drop me a line. As this is NANOG, discussion probably should move to NOD-list, if warranted. ============================= 1. City? 2. Exchange Name? 3. URL for exchange? 4. Transit provided? 5. Transport options? Joel Sadler | "Hacker Tourism: Travel to exotic places Ex-Indentured Servant | in search of sights and sensations that only null(a)alaska.net | would be of interest to a geek." - Neal Stephenson

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Outages.
by mhirse＠UU.NET 09 Mar '98

09 Mar '98

There is a large number of outages that are the result of severe weather conditions in certain regions. MidWest is experiencing severe weather conditions at this time. We have trunks that are down. @ 15:40 MFS has a OC48 down that is affecting some of our sites. This might also be affecting other providors. Please make note. Mohamed A. Hirse Corporate Network Engineer UUNET Technologies, INC

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Boston space
by Brian Horvitz 09 Mar '98

09 Mar '98

Anybody have/know of some good colo space in Boston? Most important is access to Bell Atlantic Copper. I'd like to run some DSL stuff for my Boston customers (don't start with me on that one...). Brian Horvitz

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Chicago outage?
by Kevin Houle 09 Mar '98

09 Mar '98

Just called UUNET to ask why traffic from MSP1 to CHI1 is crawling. They said there is a WorldCom OC-12 outage in the Chicago area afecting CHI <-> DC traffic. Something weather related. UUNET ticket # 694960. We have a pipe to MCI in WillowSprings, and it is crawling as well. Chicago apears to be a congested place at the moment. Kevin

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Re: Some abuse detection hacks ...
by prue＠ISI.EDU 09 Mar '98

09 Mar '98

Avi Freedmans post with a perl script to look for network abuses a while back got me to thinking that a C program could be written to do what his scripts do in near real time, continuously, if desired. It is possible to get Cisco routers to dump netflow data records to a host. I modified a Cisco demonstration program called fdget.c to look at the netflow data records and search for illegimate default pointing or transit routing from unauthorized source AS's to unauthorized destination AS's. I have made this program available via anonymous ftp (not a URL) on venera.isi.edu in subdirectory mon. This directory is blind. You must know what files you wish to retrieve by exact name. The files of interest are: atack.c README.atack flowdata.h I hope that you find them useful. My thanks go to Cisco for letting me distribute this program even though most of the code was written by Cisco. So keep in mind any bugs are mine. Walt Prue Los Nettos USC/ISI

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Re: Sprint outage 980309
by Jay Stewart 09 Mar '98

09 Mar '98

> Anyone from Sprint care to publicly shed light on the 4 hour outage > this morning? > > -- > Joe Provo, Network Architect Four hours? My Sprintlink circuit has been down for over 5 hours, and still showing: 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec I hope they fix it soon. I'd rather not see it make six hours. . Jay Stewart Vice President Olympia Networking Services - "Olympia's Premier Internet Provider" Phone 360.753-3636 Fax 360.357.6160 http://www.olywa.net/

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