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MIT network measurement probes
by David G. Andersen 26 Oct '01

26 Oct '01

Given the current thread about unwanted network probe traffic, I figured it would be a good idea to pre-announce this and let people have a chance to put their netblocks on a deny list in advance, if they so desire. (Note: We'd really appreciate it if you'd let our probes go through! It's an important part of some of the research we're doing). We're running some traceroutes and pings to observe the end-to-end reachability of sites around the times of BGP route changes. This means that if you have a stable network, you probably won't see too many probes from us, but if you flap all the time, you'll see up to a few probes per hour. (One probe == one traceroute). The probes are extremely low-bandwidth and as non-invasive as we can make them, but if you'd like to be put on an exclusion list for this and any other probing experiments our research group runs, please send mail to: mon-request(a)nms.lcs.mit.edu Include all of the netblocks that you'd like excluded, preferably like: 18.31.0.0/24 Thanks, -Dave Andersen -- work: dga(a)lcs.mit.edu me: dga(a)pobox.com MIT Laboratory for Computer Science http://www.angio.net/

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Re: Fwd: Re: Digital Island sponsors DoS attempt?
by JC Dill 26 Oct '01

26 Oct '01

On 08:10 PM 10/25/2001 -0500, Andy Walden wrote: >On Thu, 25 Oct 2001, JC Dill wrote: > >> >> <cue twilight zone music> >> >> This is the story of a network who didn't learn the lesson of above.net vs >> orbs. >> >> </music> > >I may not have the whole story, but I don't believe above.net had much to >do with the demise of ORBS. Some in country lawsuit did. Above.net's blocking of ORBS led to fewer and fewer networks using ORBS and IMHO it contributed to the weakness that allowed the lawsuit to happen and thrive. If ORBS had been a stronger service with more users, they might have done things differently before or during the lawsuit. What happens to Digital Island if networks (especially large networks) start blocking them because they won't stop repeatedly scanning when asked? Can it do them *any* good? jc

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Four Arrested in Pedophile Sting
by redhead＠freebsd.redbird.com 26 Oct '01

26 Oct '01

Greetings from 1010wins.com! Reid Fishler recommends you check out this story from 1010 WINS: Four Arrested in Pedophile Sting http://1010wins.com/StoryFolder/story_280775307_html Message from Reid Fishler: If everyone sent out "feelers" we would all have more of these articles.

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Re: Digital Island sponsors DoS attempt?
by Bandy Rush 26 Oct '01

26 Oct '01

Not everyone would have oc3's, since sometimes gear that terminates oc3's gets locked in NON-CONFORM. /br >From: Reid Fishler <redhead(a)freebsd.redbird.com> >Subject: Re: Digital Island sponsors DoS attempt? > >If everyone sent out "feelers" we would all have >OC3's just to accept the >feelers...forget customers. > >Reid Fishler >Lightning.net __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com

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Re: Fwd: Re: Digital Island sponsors DoS attempt?
by Jason Forester 26 Oct '01

26 Oct '01

(apologies for the slow reply, as I read nanog via the archives updated once/hour). Of course we will honor requests to stop. As Joe said, 400 packets in two hours is not very much traffic. The end result of the measurements is improved service to people who use the Footprint service, which includes anyone who downloads files from Microsoft or views their website (in other words, much of the internet, including people at bblabs.com) I encourage anyone who wishes the requests to stop (with the possible consequence of reduced performance for their clients) to contact abuse(a)digisle.net with your IP range. Apologies for any inconvenience that the packets may have caused. BBlabs /24 has been added to our exclude list. - jason -----Original Message----- From: Dave Stewart [mailto:dbs@ntrnet.net] Sent: Thursday, October 25, 2001 3:14 PM To: Wojtek Zlobicki; nanog(a)merit.edu Subject: Re: Fwd: Re: Digital Island sponsors DoS attempt? At 08:58 PM 10/25/2001, Wojtek Zlobicki wrote: >excessive. Why should I have to waste processor cycles to keep these guys >out. You shouldn't have to. But they don't seem to honor requests to stop. -- Jason Forester jasonf(a)digisle.net Network Performance Engineer Digital Island

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BGP advice: Customer converting from static ISP connection to BGP
by CONWAY＠pjm.com 25 Oct '01

25 Oct '01

I'm looking for some independent confirmation from someone experienced in converting from a static routed ISP connection with the customer's netblock announced under the ISP's ASN to a BGP config where the customer has their own ASN and netblock. We're the customer, and we're getting conflicting info on what to expect during the conversion. Specifically, we're hearing conflicting things about how long it will take for the "world" to recognize our routes, whether or not there may be areas of the net "blackholed" from us for a while until things stabilize, etc. I realize this is probably off-topic for this list, so please direct any replies directly to me. If there is interest, I'm willing to summarize to the list. Chuck Conway conway(a)pjm.com

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Contact for Yahoo postmaster ?
by miquels＠cistron-office.nl 25 Oct '01

25 Oct '01

Does anyone know who to contact if you've been blacklisted by the Yahoo SMTP servers? # nc -s195.64.68.40 203.199.70.34 smtp 553 Mail from 195.64.68.40 not allowed - user complaints of spam from this ip I tried postmaster(a)yahoo.com but got no reply. Weird that a mailservice this big blacklists people without giving them advance notice and without reading postmaster(a)yahoo.com .. Thanks, Mike. -- "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former" -- Albert Einstein.

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Re: MCI outage? (Telephone too, problems reaching PacBell)
by Frank Jimenez 25 Oct '01

25 Oct '01

I'm not really sure where the TAC 800s route through - but a large service outage in San Jose is just important enough to let the group know about - just in case a customer says TAC was down today... REPEAT: As far as I know, Cisco wasn't impacted by this, but just in case.... Frank J At 07:16 PM 10/24/2001 -0400, Sean Donelan wrote: > > > >On Wed, 24 Oct 2001, David Schwartz wrote: >> All of our circuits that require connectivity between MCI and PacBell are >> out (in the San Jose area). I'm hearing that it's a major MCI outage, >> possibly even global or at least regional. We're experiencing telephone >> outages as well, for example people with PacBell 'local long distance' can't >> reach our MCI voice lines either. > >Worldcom (MCI) lost its lines to the Spacepark CO. Spacepark is one >of those 100 "important" COs. So connectivity between regional Worldcom >customers and the rest of the country may be impacted, but the rest of >the country/globe is unaffected. >

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High risk profession - Internet companies
by Sean Donelan 25 Oct '01

25 Oct '01

I did not find an official source on the CDC or Washington DC Department of Health web sites. The Washington Post has a story today which includes Internet companies in a list of high-risk professions. I do not know if there is any specific information for including Internet companies in the list. http://www.washingtonpost.com/wp-dyn/articles/A42450-2001Oct23.html "Anyone with flu-like symptoms -- an elevated white blood count, coughs, body aches, respiratory problems -- would be given antibiotics if they work in a high-risk profession or had "credible" exposure to anthrax bacteria. That includes people who work at postal facilities, general mailrooms, media organizations, government offices or Internet companies."

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Re: MCI outage? (Telephone too, problems reaching PacBell)
by Sean Donelan 25 Oct '01

25 Oct '01

On Wed, 24 Oct 2001, David Schwartz wrote: > All of our circuits that require connectivity between MCI and PacBell are > out (in the San Jose area). I'm hearing that it's a major MCI outage, > possibly even global or at least regional. We're experiencing telephone > outages as well, for example people with PacBell 'local long distance' can't > reach our MCI voice lines either. Worldcom (MCI) lost its lines to the Spacepark CO. Spacepark is one of those 100 "important" COs. So connectivity between regional Worldcom customers and the rest of the country may be impacted, but the rest of the country/globe is unaffected.

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