April 2004 - NZNOG - lists.nznog.org

RE: [nznog] Routing protocols
by Donald Neal 15 Apr '04

15 Apr '04

>> >> Yes... If you're thinking what I'm thinking, IS-IS is covered in the >> CCNP, CCDP and CCIP certification (and recertification) exams. And >> these are definites in the exam (not maybes). >> > http://www.cisco.com/warp/public/10/wwtraining/certprog/testing/current_ exams/642-801.html > Hey look on the bright side - at least you don't have to learn about > SNA for CCDP anymore. Um, given that CCIP is aimed at large ISP's or telcos, including IS-IS in it would seem to make sense. The funny thing is that IS-IS is included in the CCNP recertification exam, but _not_ the CCIP recertification exam. - Donald Neal Donald Neal | "I suspect most samba Technical Specialist | developers are already Operations Engineering | technically insane. Of course, Integration & Services Divn. | since many of them are Alcatel NZ Ltd | Australians you can't tell." All opinions mine only. | - Linus Torvalds ------------------------------------------------------------------------------ "This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you. Please note that this communication does not designate an information system for the purposes of the Electronic Transactions Act 2002." ------------------------------------------------------------------------------

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Routing protocols
by nznog 15 Apr '04

15 Apr '04

What routing protocols do people use on their networks? Particularly inside. Does anyone in the world actually use IS-IS ? I am not interested in what network runs what, just how many networks run various protocols. Rough idea of network size would be nice, and any partcular reasons you prefer one to the other. thanks for satisfying my curiosity JM -- -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQGiBD2JfrwRBACWgDlX/IoNxdk15KpELdl6Sou4cU0sbaBinYV7X12SoR3YljuM lJlhgtoahIdUkqOuvDmX1AUNY2a80sidbTA48B0QUzYrGnktPoBxz4O29LKm49t3 Ojoqj0AsnC6HB37N5pScATqMbXME8hkjACHvukSUvgjHiPRYaMz7WQ2W0wCg3t09 ErzU4f+J+8fExfcd8B1+ce0EAIsc5GlVeK6hTBf3XyTRFbLD0C2m+BZGamrpngmb ito2vhKxbxTHLR/Qy2nbvN4bT42CCnf4v5MguPepqbMT8V6hxXKxxUzJx3A67x6m 7e0Qag4TLopc7f7mY5bTk1yY2mjAg1b+uVEuxMxGVtFkm586aOpmQVfAAgtffsrl CLTlA/94q8gjqHk8A9funzsjlZKft1+Z+NpGObfw9M9cC7c8RJAdK8kusH7/oKb2 Yq9NsSSdULJiqZaKkH4aCV55yvDnF3b6BZQOGvqpYuSACSJoX+fEwASGL0Qq0Jym ykaxwyNKqvUdxuYb9TPU01O3OpTyAvI0DsyjJ+KGS9h9mZwPX7QtSmFtZXMgTWFo ZXIgKGg0eDByKSA8c2NvdXNlckBwYXJhZGlzZS5uZXQubno+iF0EExECAB0FAj2J frwFCQPCZwAFCwcKAwQDFQMCAxYCAQIXgAAKCRAlRgQ5B5O8vFi8AJsG0xt5FRG1 F10FJFblBhmtc4//vwCgnUmaClr8+F+qe4Rm9wnYqWyjF4S0JUphbWVzIE1haGVy IDxqYW1lcy5tYWhlckBpcmQuZ292dC5uej6IXQQTEQIAHQUCPYmWnwUJA8JnAAUL BwoDBAMVAwIDFgIBAheAAAoJECVGBDkHk7y8MvUAnRxhOIq1IAo239VFcBfN2IdZ XEehAJ9U0BB2ZZ8PjNWI1yvjzJ5P3B5lv7QhSmFtZXMgWCA8c2NvdXNlckBwYXJh ZGlzZS5uZXQubno+iF0EExECAB0FAj22c0sFCQPCZwAFCwcKAwQDFQMCAxYCAQIX gAAKCRAlRgQ5B5O8vNLkAKDZ4x+lDWYoBPVViuX37Tbd51golgCgiciBW3djy3wV 11Jdz3x38O5JwRW5Ag0EPYl+yhAIAL7K7wrwGjvgRRS+rh5hW8JJbrYQn0BvajTs Vm/OvtA5QdJN1zqBNBlGCM1OivxASjAZEmpUYMAnBcUjNicXaIu/WoB0AUPSmkZ7 4NHyWoU12cbHZw6pZno4OZ9DpwSIsOkaP5rDB8oaj9b9/nziuxBm3oqmKN64ohcN oSOFJ/4+66vEDM8I1p+4pvb2Jj5JYRS/5+piJEaBUFttHofRWkF34vnxR3c+MjY7 NSVWbu3EWtJV+se+MLeSdDZxzt4v7XD7wE/lt9xq9IlyOryQvRhqrduaYc0ABItd eashGzyDXeUCFhsyFszZG51cAP6FiYQiD9ztwNHUKhLzjcqDJTMAAwYIAL1D9sdU 8+BI3jH1HhPiM8VLq1zii8ksRw77iUthpfe7xMp8qhiachMdXnIMYlIskEiFP3nt BycQlPYBNOV96YEhnBngiBXbC40xgxXSkpJh24Fu6GbXAlLMnahkQeRSMjAcDJuh bNcYfwm+PE86g9XyLCDVByzSQ+bRY7Dof+Sjgtod4Ds4tYA3R3qgYE0Co1dtrf4z b58PlnaSAq9wVtMD0G8Da/n5MC8jsAcHZahfBqmwvKsGENH8zFVwsAeKDjQv075m tO+V96QxCMYuvJeVWWYvL/bIR2zya9yD6RCWds1IBljUIwLI+Ox4Dd3LfBT1Y2g3 x8DNsYXPOCPYWCyITAQYEQIADAUCPYl+ygUJA8JnAAAKCRAlRgQ5B5O8vA6DAJ4v ulRjiKp8UZ5iqCSFvboQRoM4zgCcCunR39pnorxd2ZxIi+miFuPx75U= =siNl -----END PGP PUBLIC KEY BLOCK-----

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Re: [nznog] $1 a CPU hour to send SPAM
by Ewen McNeill 15 Apr '04

15 Apr '04

In message <B4F614073A647F4DAC7F5E4BE6E9EEF70328FA(a)w2kmail.bits.co.nz>, Carl Black writes: >basically they pay individuals $usd1.00 per hour they leave their PC >available as a SPAM relay - at ~$8700 a year, If you read the Slashdot discussion (and the website carefully) you'll see they are claiming they'll pay US$1.00 per hour of CPU time. Spam delivery is hardly CPU bound. A bunch of idiots will probably sign up thinking they're going to get thousands of dollars a year; even on the face of it they'll get hundreds at most. And I'd say it's better than even money they won't get anything -- rule #1: spammers lie. Given the number of zombie mail relays "administered" by people without the clue to manage a machine on the Internet I'm not sure that someone offering to pay for them is going to make a whole of difference to the volumes of spam. Ewen

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RE: [nznog] Routing protocols
by Donald Neal 15 Apr '04

15 Apr '04

> What routing protocols do people use on their networks? > Particularly inside. > > Does anyone in the world actually use IS-IS ? > > I am not interested in what network runs what, just how many networks > run various protocols. > > Rough idea of network size would be nice, and any partcular > reasons you > prefer one to the other. > > thanks for satisfying my curiosity > JM In the words of Iljitsch van Beijnum's book "BGP", which I was reading over Easter (I know, I'm a sad person): "If you are implementing a large-scale IP network or have unusual requirements, you should definitely read up on all the protocols so you can make an informed decision. However, most small-to-medium sized networks running just IP should go ahead and select OSPF: it does the job, doesn't have any huge disadvantages, and is readily available." - Donald Neal Donald Neal | "I suspect most samba Technical Specialist | developers are already Operations Engineering | technically insane. Of course, Integration & Services Divn. | since many of them are Alcatel NZ Ltd | Australians you can't tell." All opinions mine only. | - Linus Torvalds ------------------------------------------------------------------------------ "This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you. Please note that this communication does not designate an information system for the purposes of the Electronic Transactions Act 2002." ------------------------------------------------------------------------------

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RE: [nznog] Routing protocols
by Chris Hellberg 14 Apr '04

14 Apr '04

I knew that I phrased that wrong just after I clicked "send" I meant the IGP type rather than packet/PDU authentication :) I wonder if it's common that at BOFs and presentations you'd find engineers from ISPs and such talking on the subject of solvung problem xyz or why they find abc good in a particular IGP. Another interesting link sent to me is a disection between the two protocols: http://www.nanog.org/mtg-0006/katz.html > -----Original Message----- > From: Joe Abley [mailto:jabley(a)isc.org] > Sent: Thursday, 15 April 2004 22:37 > To: Chris Hellberg > Cc: nznog(a)glassmile.co.nz; nznog(a)list.waikato.ac.nz > Subject: Re: [nznog] Routing protocols > > > > On 15 Apr 2004, at 06:32, Chris Hellberg wrote: > > > I stand corrected. In this case, I wonder if it's the > exception rather > > than the norm that large carriers protect things such as their IGP > > then? > > I'm quite sure that AOL and MFN protect their IGP, but they > do so using > link-layer authentication, a link-scope, non-routed protocol (in the > case of IS-IS) and by not exposing it to customers or other external > entities. That's what we do at ISC. > > Security by obscurity is no longer in style, maybe. > > > Joe > > > ------------------------------------------------------------------------------ "This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you. Please note that this communication does not designate an information system for the purposes of the Electronic Transactions Act 2002." ------------------------------------------------------------------------------

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RE: [nznog] Routing protocols
by Chris Hellberg 14 Apr '04

14 Apr '04

> -----Original Message----- > From: Joe Abley [mailto:jabley(a)isc.org] > Sent: Thursday, 15 April 2004 22:28 > To: Chris Hellberg > Cc: nznog(a)glassmile.co.nz; nznog(a)list.waikato.ac.nz > Subject: Re: [nznog] Routing protocols > > > > > As for what networks are running what protocol, you're > unlikely to get > > too much on that sort of info. > > AOL's transport network runs IS-IS (there was a presentation about > their transition from OSPF at a semi-recent NANOG). > MFN/AboveNet did a > similar transition while I was there. We run IS-IS as our IGP in our > home network (AS 3557), although we still use OSPF in local-scope > anycast clusters since it's more straightforward to find ways of > supporting it on FreeBSD. > > > Joe I stand corrected. In this case, I wonder if it's the exception rather than the norm that large carriers protect things such as their IGP then? ------------------------------------------------------------------------------ "This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you. Please note that this communication does not designate an information system for the purposes of the Electronic Transactions Act 2002." ------------------------------------------------------------------------------

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RE: [nznog] Routing protocols
by Chris Hellberg 14 Apr '04

14 Apr '04

Large networks all over the world run IS-IS. You won't find an abundance of information on the protocol as you would with OSPF (especially such as John Moy's OSPF book), however it's still a very popular IGP. There's an interesting draft on the differences between OSPF and ISIS which probably wouldn't have been written if IS-IS wasn't used a whole heap: http://ftp.apnic.net/ietf/internet-drafts/draft-bhatia-manral-diff-isis-osp… As for what networks are running what protocol, you're unlikely to get too much on that sort of info. Chris > -----Original Message----- > From: nznog-bounces+chris.hellberg=telecom.co.nz(a)list.waikato.ac.nz > [mailto:nznog-bounces+chris.hellberg=telecom.co.nz(a)list.waikat > o.ac.nz]On > Behalf Of nznog > Sent: Thursday, 15 April 2004 22:07 > To: nznog(a)list.waikato.ac.nz > Subject: [nznog] Routing protocols > > > What routing protocols do people use on their networks? > Particularly inside. > > Does anyone in the world actually use IS-IS ? > > I am not interested in what network runs what, just how many networks > run various protocols. > > Rough idea of network size would be nice, and any partcular > reasons you > prefer one to the other. > > thanks for satisfying my curiosity > JM > -- > -----BEGIN PGP PUBLIC KEY BLOCK----- > Version: GnuPG v1.0.6 (GNU/Linux) > Comment: For info see http://www.gnupg.org > > mQGiBD2JfrwRBACWgDlX/IoNxdk15KpELdl6Sou4cU0sbaBinYV7X12SoR3YljuM > lJlhgtoahIdUkqOuvDmX1AUNY2a80sidbTA48B0QUzYrGnktPoBxz4O29LKm49t3 > Ojoqj0AsnC6HB37N5pScATqMbXME8hkjACHvukSUvgjHiPRYaMz7WQ2W0wCg3t09 > ErzU4f+J+8fExfcd8B1+ce0EAIsc5GlVeK6hTBf3XyTRFbLD0C2m+BZGamrpngmb > ito2vhKxbxTHLR/Qy2nbvN4bT42CCnf4v5MguPepqbMT8V6hxXKxxUzJx3A67x6m > 7e0Qag4TLopc7f7mY5bTk1yY2mjAg1b+uVEuxMxGVtFkm586aOpmQVfAAgtffsrl > CLTlA/94q8gjqHk8A9funzsjlZKft1+Z+NpGObfw9M9cC7c8RJAdK8kusH7/oKb2 > Yq9NsSSdULJiqZaKkH4aCV55yvDnF3b6BZQOGvqpYuSACSJoX+fEwASGL0Qq0Jym > ykaxwyNKqvUdxuYb9TPU01O3OpTyAvI0DsyjJ+KGS9h9mZwPX7QtSmFtZXMgTWFo > ZXIgKGg0eDByKSA8c2NvdXNlckBwYXJhZGlzZS5uZXQubno+iF0EExECAB0FAj2J > frwFCQPCZwAFCwcKAwQDFQMCAxYCAQIXgAAKCRAlRgQ5B5O8vFi8AJsG0xt5FRG1 > F10FJFblBhmtc4//vwCgnUmaClr8+F+qe4Rm9wnYqWyjF4S0JUphbWVzIE1haGVy > IDxqYW1lcy5tYWhlckBpcmQuZ292dC5uej6IXQQTEQIAHQUCPYmWnwUJA8JnAAUL > BwoDBAMVAwIDFgIBAheAAAoJECVGBDkHk7y8MvUAnRxhOIq1IAo239VFcBfN2IdZ > XEehAJ9U0BB2ZZ8PjNWI1yvjzJ5P3B5lv7QhSmFtZXMgWCA8c2NvdXNlckBwYXJh > ZGlzZS5uZXQubno+iF0EExECAB0FAj22c0sFCQPCZwAFCwcKAwQDFQMCAxYCAQIX > gAAKCRAlRgQ5B5O8vNLkAKDZ4x+lDWYoBPVViuX37Tbd51golgCgiciBW3djy3wV > 11Jdz3x38O5JwRW5Ag0EPYl+yhAIAL7K7wrwGjvgRRS+rh5hW8JJbrYQn0BvajTs > Vm/OvtA5QdJN1zqBNBlGCM1OivxASjAZEmpUYMAnBcUjNicXaIu/WoB0AUPSmkZ7 > 4NHyWoU12cbHZw6pZno4OZ9DpwSIsOkaP5rDB8oaj9b9/nziuxBm3oqmKN64ohcN > oSOFJ/4+66vEDM8I1p+4pvb2Jj5JYRS/5+piJEaBUFttHofRWkF34vnxR3c+MjY7 > NSVWbu3EWtJV+se+MLeSdDZxzt4v7XD7wE/lt9xq9IlyOryQvRhqrduaYc0ABItd > eashGzyDXeUCFhsyFszZG51cAP6FiYQiD9ztwNHUKhLzjcqDJTMAAwYIAL1D9sdU > 8+BI3jH1HhPiM8VLq1zii8ksRw77iUthpfe7xMp8qhiachMdXnIMYlIskEiFP3nt > BycQlPYBNOV96YEhnBngiBXbC40xgxXSkpJh24Fu6GbXAlLMnahkQeRSMjAcDJuh > bNcYfwm+PE86g9XyLCDVByzSQ+bRY7Dof+Sjgtod4Ds4tYA3R3qgYE0Co1dtrf4z > b58PlnaSAq9wVtMD0G8Da/n5MC8jsAcHZahfBqmwvKsGENH8zFVwsAeKDjQv075m > tO+V96QxCMYuvJeVWWYvL/bIR2zya9yD6RCWds1IBljUIwLI+Ox4Dd3LfBT1Y2g3 > x8DNsYXPOCPYWCyITAQYEQIADAUCPYl+ygUJA8JnAAAKCRAlRgQ5B5O8vA6DAJ4v > ulRjiKp8UZ5iqCSFvboQRoM4zgCcCunR39pnorxd2ZxIi+miFuPx75U= > =siNl > -----END PGP PUBLIC KEY BLOCK----- > > > _______________________________________________ > NZNOG mailing list > NZNOG(a)list.waikato.ac.nz > http://list.waikato.ac.nz/mailman/listinfo/nznog > > ------------------------------------------------------------------------------ "This communication, including any attachments, is confidential. If you are not the intended recipient, you should not read it - please contact me immediately, destroy it, and do not copy or use any part of this communication or disclose anything about it. Thank you. Please note that this communication does not designate an information system for the purposes of the Electronic Transactions Act 2002." ------------------------------------------------------------------------------

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DNS TTL Problem.
by jfp 14 Apr '04

14 Apr '04

Hi guys, we currently have a problem where one of our client has have switched their dns mail and hosting over to us, but the monkeys they were with before had set the TLL at 7 days. So for example it's currently on day 5 in the Xtra dns cache. Is there anyway to speed up the process and flush those cached values? That client has of course just done send some publicity out :-) PS: The domain in question is thereef.co.nz. Thanks. jfp. ------------------------------------------------------------------------ Jean-Francois Pirus <jfp(a)clearfield.com> Clearfield Software Ltd Phone (+64-9) 358 2081 4th Floor 8-10 Whitaker Place Fax (+64-9) 358 2083 P O Box 2348 Auckland, New Zealand ------------------------------------------------------------------------

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$1 a CPU hour to send SPAM
by Carl Black 14 Apr '04

14 Apr '04

Surprised I haven't seen this crowd mentioned here before: www.virtualmda.com basically they pay individuals $usd1.00 per hour they leave their PC available as a SPAM relay - at ~$8700 a year, that's going to be VERY tempting for lots of people. Maybe time for blanket blocks on TCP25? There's some talk about it on /. http://yro.slashdot.org/yro/04/04/14/1415217.shtml?tid=111&tid=126&tid=95&ti d=98&tid=99

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Broken PC
by Richard Naylor 13 Apr '04

13 Apr '04

How to show your boss that you need a new PC. Simply demo playing some streaming video that you can find here.......http://www.r2.co.nz/20040413 I suggest you don't try this on dsl.....It works on CafeNet, but you need to leave the lappy on mains power as some of them reduce cpu capacity to save power. These video clips eat CPU capacity. Its interesting what PCs and lappys can actually play this stuff, even off their own hard drive. If there enough feedback, I'll put the files up on an http server so that you can download them. The 5 clips total around 650MBytes. An excellent demo as to why "broadband" ISN'T 256kbps....... (there is another demo coming, but we can't show you that one yet) rich

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