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Is anyone using GILAT's "Spacenet" service
by Shaun Bryant 23 Aug '01

23 Aug '01

Hi all, Is anyone using Gilat's "Spacenet" we are looking in to them to tie some of our remote offices via there "Frame" service. I would like to know how well they work and what you experience has been with them.. Also they are telling us sub 500ms RTT which I do not believe. Thanks Shaun Bryant

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Re: multi-homing fixes
by Vijay Gill 23 Aug '01

23 Aug '01

Irwin Lazar <ILazar(a)tbg.com> writes: > A while back there was an article in Network World on problems due > to the rise of multihoming: > http://www.nwfusion.com/news/2001/0402routing.html which was > discussed in great length in this forum. > > Has the IETF created a working group to deal with a long-term fix for this > issue, and if so, is there a URL for its activities? There has been discussion regarding these issues in ptomaine and on multi6 http://www.shrubbery.net/ptomaine/ http://www.ietf.org/html.charters/multi6-charter.html /vijay

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multi-homing fixes
by Irwin Lazar 23 Aug '01

23 Aug '01

A while back there was an article in Network World on problems due to the rise of multihoming: http://www.nwfusion.com/news/2001/0402routing.html which was discussed in great length in this forum. Has the IETF created a working group to deal with a long-term fix for this issue, and if so, is there a URL for its activities? Thanks in advance, Irwin

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Routescience?
by Irwin Lazar 23 Aug '01

23 Aug '01

Is anyone out there familiar with a company called "routescience"? I caught the below press release at and wanted to find out if anyone can relay any real-world experiences with their system? It almost sounds like they are using something like a Keynote Systems performance monitoring tool to inject BGP path preference information. TIA, Irwin --- ROUTESCIENCE DEVELOPS PLATFORM TO CONTROL BGP INTERNET ROUTING RouteScience, a start-up based in San Mateo, California, unveiled plans for a unique "route controller" platform for optimizing a company's multiple ISP links by providing real-time performance measurements of paths across the Internet to end users. Using these performance metrics and customer preferences for ISP link cost, RouteScience's PathControl platform determines the best ISP path for end-users and can then automatically update the organization's edge routers with the best path routing information. The route performance measurement relies on a patent-pending closed-feedback loop system that does not use pings. Route updates are provided to the edge routers using standard Border Gateway Protocol. A large company with multiple ISPs would use the systems to route traffic to the ISP links that actually deliver the best end-to-end performance. The solution could also be used by a Tier-2/3 service provider to route traffic to multiple backbone carriers depending on cost and real- time performance metrics. The company said default BGP chooses a sub-optimal route 50% - 80% of the time, depending on the number of alternative ISP paths. Of those routes that can be improved, an alternate ISP is on average 2 times faster. RouteScience claims its system provides deep visibility into ISP performance and could fundamentally change network service agreements and pricing by moving control over Internet routing decisions to the network edge. http://www.routescience.com RouteScience, August 20, 2001

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should i publish a list of cracked machines?
by Jim Mercer 23 Aug '01

23 Aug '01

i found one of my boxes was cracked (probably due to the BSD telnetd overflow). in any case, i found a file in the cracker's directory containing what i think is a list of other servers which might be hacked. i think the list also includes the passwords for using the trojan. on my server, i found a trojan daemon, allowing ssh on an 14000 series port. i was gonna just post the list of hosts here, but then, maybe not. what is the appropriate feeling? -- [ Jim Mercer jim(a)reptiles.org +1 416 410-5633 ] [ Now with more and longer words for your reading enjoyment. ]

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RE: resolved Re: should i publish a list of cracked machines?
by Roeland Meyer 23 Aug '01

23 Aug '01

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Re: Measuring PoP to PoP latency--tools to use?
by Grant A. Kirkwood 23 Aug '01

23 Aug '01

That's what I'm looking for. Anyone know where source to something like this is available? Grant "Polinsky, Steven" wrote: > > Check this one, which also has links to similar services: > > http://weather.nts.uci.edu/weather/ > > Steven > > Steven M. Polinsky > Goldman, Sachs & Co. > 180 Maiden Lane > New York, NY 10038 > 212-902-3669 | Fax: 212-493-0107 > > -----Original Message----- > From: E.B. Dreger [mailto:eddy+public+spam@noc.everquick.net] > Sent: Wednesday, August 22, 2001 10:40 PM > To: Grant A. Kirkwood > Cc: Sean Donelan; nanog(a)merit.edu > Subject: Re: Measuring PoP to PoP latency--tools to use? > > > There used to be a site somewhere (I think Andover or Keynote sucked up > > the domain, but it was a while ago) that had a very nice little script > > that pinged IP addresses and presented the visitor with average latency > > to those addresses. Looked something like this: > > > > UUNet (x.x.x.x) -> 38 ms (green) > > C&W (x.x.x.x) -> 68 ms (yellow) > > AOL (x.x.x.x) -> 400 ms (red) > > ratings.miq.net > www.internetweather.com ? > > Actually, the latter seems to have been borged by (was always a part > of?) the former. > > It may have also been netcopter.com, which is now dead... > > Eddy > > --------------------------------------------------------------------------- > Brotsman & Dreger, Inc. - EverQuick Internet Division > Phone: +1 (316) 794-8922 Wichita/(Inter)national > Phone: +1 (785) 865-5885 Lawrence > --------------------------------------------------------------------------- > > Date: Mon, 21 May 2001 11:23:58 +0000 (GMT) > From: A Trap <blacklist(a)brics.com> > To: blacklist(a)brics.com > Subject: Please ignore this portion of my mail signature. > > These last few lines are a trap for address-harvesting spambots. Do NOT > send mail to <blacklist(a)brics.com>, or you are likely to be blocked.

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Re: Measuring PoP to PoP latency--tools to use?
by Sean Donelan 23 Aug '01

23 Aug '01

On Wed, 22 August 2001, k claffy wrote: > On Wed, Aug 22, 2001 at 06:08:15PM +0200, Adam Obszynski wrote: > > What tools exist that will periodically log into multiple routers and run > > ping tests > > to various destinations and then record the results in graphical form? > > maybe the RTR cisco router feature for sonde-like probing ? InternetMCI(purchased by Cable & Wireless) and AT&T spent a lot of effort developing their tools. I haven't seen any commercially available systems which come close. C&W and AT&T seem to be unique among huge backbone providers in publishing their network performance. However, an alternative for measuring round-trip times with ICMP is setting up a full mesh of NTP assocations. As part of the calculations of the "time" get an ongoing measurement of network delay between the routers. You can use your favorite tool to read the NTP associations table, and generate a nice web page. I believe this is how UUNET use to do their version.

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RE: Routescience?
by E.B. Dreger 23 Aug '01

23 Aug '01

Sorry to respond/add to my own post, but there is another possibility that I forgot to mention: Create subinterfaces on the border router(s). Let's say that I'm connected to three upstreams, and communicate with the LAN via f0/0. Assume single border router. I create f0/0.1, f0/0.2, and f0/0.3, each in separate /30s. When the RouteScience box (presumed to operate using WCCP) receives a packet that it wishes to test, it forwards to the appropriate border router subint. The border router sets next-hop to a specific value that correlates to the ingress f0/0.x subint. Just don't round-robin packets from the same stream over different paths. (!) Unacceptable even for a quick test. Back to lurkerland, On to dreamland, Eddy --------------------------------------------------------------------------- Brotsman & Dreger, Inc. - EverQuick Internet Division Phone: +1 (316) 794-8922 Wichita/(Inter)national Phone: +1 (785) 865-5885 Lawrence --------------------------------------------------------------------------- Date: Mon, 21 May 2001 11:23:58 +0000 (GMT) From: A Trap <blacklist(a)brics.com> To: blacklist(a)brics.com Subject: Please ignore this portion of my mail signature. These last few lines are a trap for address-harvesting spambots. Do NOT send mail to <blacklist(a)brics.com>, or you are likely to be blocked.

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RE: Routescience?
by Kavi, Prabhu 23 Aug '01

23 Aug '01

I would like to hear it too. However, in fairness to Routescience, did anyone on NANOG previously ask Cisco and Juniper to publicly talk about everything they (sometimes painfully) learned about how to create resilient IS-IS/OSPF/BGP implementations? And even if anyone would ask, are Cisco and Juniper likely to respond (thereby giving a heads up to their competitors)? Routescience may or may not have something worthwhile. However, I would respect their perogative to not say much more on the NANOG mailing list. I think the presentation at NANOG would be a great idea, especially if it is a joint presentation with an ISP evaluating the product. Prabhu ---------------------------------------------------------------------- Prabhu Kavi Phone: 1-978-264-4900 x125 Director, Adv. Prod. Planning Fax: 1-978-264-0671 Tenor Networks Email: prabhu_kavi(a)tenornetworks.com 100 Nagog Park WWW: www.tenornetworks.com Acton, MA 01720 > -----Original Message----- > From: Andy Dills [mailto:andy@xecu.net] > Sent: Wednesday, August 22, 2001 4:01 PM > To: 'nanog(a)merit.edu' > Subject: Re: Routescience? > > > > On Wed, 22 Aug 2001, Mike Lloyd wrote: > > > How precisely we've done it, what kinds of controls we > offer, how the > > reporting looks, and ultimately how much it pays off are > all things we > > love to talk about, but I'm not sure this is the forum for brick by > > brick architectural inspection. We have collected a large amount of > > data on the relevant networking effects, and come up with > analyses of > > it; some of that might be appropriate at a NANOG meeting, perhaps. > > I dunno about the rest of nanog, but I think a technical > discussion of how > you implement performance-based route selection would beat > the hell out of > the MAPS debate and Code Red discussion...I think, in fact, > after touting > your product this much (which was in response, and not > unsolicited, thus > relevant), you owe it to us to disclose as much as possible. > > Plus, I suspect that either you have something really cool > (in which case > I'd love to hear more of the details), or something that is > going to be > picked apart by the heavyweights on this list (which would be highly > entertaining). > > It's a no lose thread. Let's have it. > > Andy > > xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > Andy Dills 301-682-9972 > Xecunet, LLC www.xecu.net > xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > Dialup * Webhosting * E-Commerce * High-Speed Access > > >

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