August 2004 - Test - lists.nanog.org

RE: Quick question.
by Michel Py 04 Aug '04

04 Aug '04

>> Michel Py wrote: >> Terminators are a thing of the past; as a matter of >> fact, in California and especially in Sacramento >> they're called governators now. > Erik Bais wrote: > You mean, they'll be back? :-D Only once, and this model is obsolete and can't be upgraded to presidentor. > Paul Jakma wrote: > Intel dont do fault-tolerant SMP. Running SMP will > lower your MTBF just by fact that you now have 2 CPUs. True; this would be like raid-0 arrays, the more disks the greater the chance of failure. However, MTBF is not the name of the game here, availability ratio is. Which is tied to failure rate. In other words, I don't really care if the second processor reduces the MTBF from 200k hours to 60k hours, but I do care if the second processor reduces the time to restore service from 24 hours to 20 minutes (7.5 minutes for SNMP to fail the query twice, 1.5 minute for the tech to find out that either it's frozen or there's a BSOD, 6 minutes to have someone go there and reset, 5 minutes to reboot). The dead processor still has to be replaced, but this is scheduled maintenance, not outage. A little extra ammo when you have to hunt five or six nines. > Then there's fact that you're far more likely to > hit bugs in OS with SMP than uniproc. Unsignificant in my experience, and does not balance what Alexei mentioned yesterday: a duallie will keep the system up when a faulty process hogs 100% CPU, because the second one is still available. That also increases availability ratio. Michel.

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RE: Quick question.
by Michel Py 04 Aug '04

04 Aug '04

> Alexei Roudnev wrote: > (but we still like old and cheap 2x1Ggz servers, > able to do 99% of all tasks). Barely worth it anymore, these days you can find an Intel Server Chassis SR2300 and Intel Server Board SE7501WV2 (SCSI) for $1,500; it's a 2U dual-Xeon dual-channel DDR with 6 hot-swap scsi bays. I have to say that I get impatient when I work on anything that does not have dual-channel DDR; it does not take much time to get used to it :-( > PS. I like E-bay; last example - our collegues spend a long > negotiations and settle price for Cisco switches with a good > discount; 10 seconds e-bay search revealed exactly the same > systems in original boxes (unopened) 10% cheaper -:) Hear, hear. And since it's new, no re-licensing issues. Hardware costs nothing these days: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=73321&item=571185 5935&rd=1 Maybe that's what I'll ask Santa this year: a BFR^H^H^H GSR to replace my home router. <shameless plug> Looking for someone to provide an OC-12 to my home for $100/mo so I can test the router mentioned above. Oh, I also need this, don't I? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=162&item=51126654 63&rd=1 </shameless plug> Michel.

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Re: sms messaging without a net?
by Brett 03 Aug '04

03 Aug '04

If you put your monitor on the other side of the broken link, external to your network, then pages directly to the cell provider will go through. So, if your T3 goes down, an external monitor that is not affected by the outage can send the page. On Tue, 3 Aug 2004 12:44:00 -0400, Matthew McGehrin <mcgehrin(a)reverse.net> wrote: > For example, if your 'T-3' goes down, no point in sending an e-mail since > you don't have connectivity :) The original poster was trying to have > complete redundancy, so in the case of a 'fiber' cut where communications > are totally interrupted, using a cell phone would almost guarantee that the > page would be sent, rather than just queuing up in the mailqueue during the > outage. > > > > > ----- Original Message ----- > From: "Brett" <bretton(a)gmail.com> > To: "Dan Hollis" <goemon(a)anime.net> > Cc: <nanog(a)merit.edu> > Sent: Tuesday, August 03, 2004 12:32 PM > Subject: Re: sms messaging without a net? > > > Any reason the monitor can't be external, then send an SMS via email > > directly to the cell phone provider, rather than an alias on the down > > network? > >

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IANA IPv4 allocations and bogon update: 71/8, 72/8
by Stephen Gill 03 Aug '04

03 Aug '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, team. [ Apologies to those of you who receive this note in multiple forums. ] The numerous Team Cymru bogon projects have been updated as of 02 AUG 2004 to reflect the following IANA allocation made on 02 AUG 2004: 71/8 Aug 04 ARIN 72/8 Aug 04 ARIN IANA allocations change over time, so please check regularly to ensure you have the latest filters if you are not using the bogon BGP feed(s). We do announce updates to the bogon projects to sundry lists, such as the bogon-announce list. We can not stress this point strongly enough - these allocations change. If you do not adjust your filters, you will be unable to access perhaps large portions of the Internet. Worse yet, you may end up blocking access for people who transit through you. Please do not apply any filters or blocks to your network without carefully considering the ramifications of doing so. As a point of reference, the Team Cymru master Bogon Reference Page can be found here: <http://www.cymru.com/Bogons/> A quick summary of the documents and projects that have been updated include the following: HTTP The Bogon List - <http://www.cymru.com/Documents/bogon-list.html> The Text Bogon Lists - <http://www.cymru.com/Documents/bogon-bn-nonagg.txt> - <http://www.cymru.com/Documents/bogon-bn-agg.txt> Secure BIND Template - <http://www.cymru.com/Documents/secure-bind-template.html> Secure IOS Template (Cisco) - <http://www.cymru.com/Documents/secure-ios-template.html> Secure BGP Template (Cisco) - <http://www.cymru.com/Documents/secure-bgp-template.html> Secure JUNOS Template (Juniper) - <http://www.cymru.com/gillsr/documents/junos-template.htm> Secure JUNOS BGP Template (Juniper) - <http://www.cymru.com/gillsr/documents/junos-bgp-template.htm> Ingress Prefix Filter Templates, Loose and Strict (Cisco) - <ftp://ftp-eng.cisco.com/cons/isp/security/Ingress-Prefix-Filter-Templ ates/> Ingress Prefix Filter Template, Loose (Juniper) - <http://www.cymru.com/gillsr/documents/junos-isp-prefix-filter-loose.h tm> Ingress Prefix Filter Template, Strict (Juniper) - <http://www.cymru.com/gillsr/documents/junos-isp-prefix-filter-strict. htm> BGP Bogon route-server for AUTOMATED updates of bogon filters - All bogon route-server peers have already received the appropriate BGP prefix updates. - <http://www.cymru.com/BGP/bogon-rs.html> RADb fltr-unallocated fltr-martian fltr-bogons - <http://www.cymru.com/Bogons/index.html#radb> RIPE NCC fltr-unallocated fltr-martian fltr-bogons - <http://www.cymru.com/Bogons/index.html#ripe> DNS Bogon (bogons.cymru.com) zone - <http://www.cymru.com/Bogons/index.html#dns> Monitoring Bogon prefix monitoring - <http://www.cymru.com/BGP/robbgp-bogon.html> Bogus ASN monitoring - <http://www.cymru.com/BGP/asnbogusrep.html> Please feel free to contact Team Cymru <team-cymru(a)cymru.com> with any comments, questions, or concerns. Thanks! Steve, for Team Cymru -----BEGIN PGP SIGNATURE----- Version: PGP 8.0 iQA/AwUBQQ/nK3px0HyV1krbEQJ8TQCfSag4PEJGBLrr7imUv82gROgaeIsAoOWN uiti/2PaZmDcEC8BbYAszERV =XC0x -----END PGP SIGNATURE-----

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Routing to 168.100.0.0
by Charles Gagnon 03 Aug '04

03 Aug '04

I cannot seem to reach an entire netblock. 168.100.0.0 (a block from Cloud9 Internet, a local ISP) is unreachable. Does anyone know of a major cut or problem somewhere? Thanks in advance. -- Charles Gagnon () ASCII ribbon campaign OTA LLC /\ against html mail 914-460-4055

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Re: sms messaging without a net?
by Mark Radabaugh 03 Aug '04

03 Aug '04

Mark Radabaugh wrote: > Dan Hollis wrote: > >> Does anyone know of a way to send SMS messages without an internet >> connection? >> >> Having a network monitoring system send sms pages via email very >> quickly runs into chicken-egg scenario. How do you email a page to >> let the admins know their net has gone down. :-P >> >> AT&T shut down their TAP dialup late last year. >> >> The only method that comes to mind is to buy a GSM modem which has >> SMS messaging capability. >> >> Has anyone done this? >> >> -Dan >> >> > We use a standard modem and pestered Alltel until they gave us the > secret modem->SMS gateway number. > > Nagios includes /usr/local/bin/sms_client. Fairly simple to use: > > Usage: sms_client -v > sms_client -d > sms_client [-q][-l loglevel] > [service:]number|name[,name|[service:]number...] > [message] ... > > As long as the monitoring server and the phone lines are working it > works great. > > Mark Radabaugh > Amplex > Dan Hollis wrote: > Does anyone know of a way to send SMS messages without an internet > connection? > > Having a network monitoring system send sms pages via email very > quickly runs into chicken-egg scenario. How do you email a page to let > the admins know their net has gone down. :-P > > AT&T shut down their TAP dialup late last year. > > The only method that comes to mind is to buy a GSM modem which has SMS > messaging capability. > > Has anyone done this? > > -Dan > > We use a standard modem and pestered Alltel until they gave us the secret TAP gateway number. Nagios is configured to use sms_client: http://www.smsclient.org/ Works great other than being a royal pain in the rear when a lot of things go down and dependencies are not set up in Nagios... I'll fix that one of these days :-) Mark Radabaugh Amplex

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RE: sms messaging without a net?
by Michel Py 03 Aug '04

03 Aug '04

>> Dan Hollis wrote: >> Does anyone know of a way to send SMS messages without an >> internet connection? Having a network monitoring system send >> sms pages via email very quickly runs into chicken-egg >> scenario. How do you email a page to let the admins >> know their net has gone down. :-P > Adrian Chadd wrote: > GNOKII and a suitable nokia phone. You could also have a dial-on-demand analog modem over a pots line that dials a competitor ;-) but overall gnokii is what makes the most sense because it has the less fate sharing: if a backhoe digs your data and phone at the same time, chances are that the GSM will still work. Michel.

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RE: sms messaging without a net?
by Hannigan, Martin 03 Aug '04

03 Aug '04

SMS is ss7 based. You could buy a pair of combined linkset A links, buy an SMS gateway and communicate with it. Your best bet, IMHO, is dialing up and sending pages. There's a protocol..I forget. It's been a long time. -M -----Original Message----- From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of Dan Hollis Sent: Tuesday, August 03, 2004 5:18 AM To: 'nanog(a)merit.edu' Subject: sms messaging without a net? Does anyone know of a way to send SMS messages without an internet connection? Having a network monitoring system send sms pages via email very quickly runs into chicken-egg scenario. How do you email a page to let the admins know their net has gone down. :-P AT&T shut down their TAP dialup late last year. The only method that comes to mind is to buy a GSM modem which has SMS messaging capability. Has anyone done this? -Dan

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Quick question about secondary addresses
by Dan Lockwood 03 Aug '04

03 Aug '04

I'm in a debate with a guy over the use of 'ip address x.x.x.x s.s.s.s secondary' on Cisco gear. I seem to remember reading that the use of secondary addresses is a bad idea, but I can't recall the details of why. Process switched? Can anyone offer a resource or more specific information? Thanks, Dan

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RE: sms messaging without a net?
by Pendergrass, Greg 03 Aug '04

03 Aug '04

We use kannel on a linux box and a GSM modem, it works very well for us. www.kannel.org Regards, Greg -----Original Message----- From: Dan Hollis [mailto:goemon@anime.net] Sent: 03 August 2004 10:18 To: 'nanog(a)merit.edu' Subject: sms messaging without a net? Does anyone know of a way to send SMS messages without an internet connection? Having a network monitoring system send sms pages via email very quickly runs into chicken-egg scenario. How do you email a page to let the admins know their net has gone down. :-P AT&T shut down their TAP dialup late last year. The only method that comes to mind is to buy a GSM modem which has SMS messaging capability. Has anyone done this? -Dan Vodafone Group Services Limited Registered Office: Vodafone House, The Connection, Newbury, Berkshire RG14 2FN Registered in England No. 3802001 This e-mail is for the addressee(s) only. If you are not an addressee, you must not distribute, disclose, copy, use or rely on this e-mail or its contents, and you must immediately notify the sender and delete this e-mail and all copies from your system. Any unauthorised use may be unlawful. The information contained in this e-mail is confidential and may also be legally privileged.

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