- dns-wg - mailman.ripe.net

Re: VoIP Numbering Plan Vs. Domain names. IPNP
by Berislav Todorovic 23 Apr '98

23 Apr '98

>> Date: Thu, 23 Apr 1998 13:07:42 +0200 >> From: Vered Nimrod <nim(a)tadirantele.com> >> Subject: VoIP Numbering Plan Vs. Domain names. IPNP >> >> Is there any work being done on the above subject ? IETF has a working group dealing with IP Telephony, but I'm not sure whether they are dealing with the mentioned problem, or not. >> There is a need for a universal IPNP (IP Numbering Plan) system. So >> that every equipment that will be connected to the Internet will >> have a unique DN (Directory Number). The solution should rather be sought in the domain name system. And there is already a possible solution to the problem, outlined in the RFC 1530 (Principles of Operation of the TPC.INT Subdomain). This is, of course, my personal view of the matter and just one more idea on the solution to the problem. * A user calling from a "net phone" would use a host name in the form 7.9.3.3.6.2.9.3.2.7.9.tpc.int to call the phone number +972-3-9263397 belonging to a "regular" PSTN (i.e. domain name is the reversed phone number, much like IN-ADDR.ARPA system). In the DNS, there should be an "MX" record pointing to the PSTN/Internet gateway, e.g.: *.*.*.*.*.*.3.2.7.9.tpc.int. IN MX 10 pstn-gw.domain.com. The client application should consult the MX records, find out the name of the gateway and then connect to the gateway - the same way mail clients do. * A user calling from a PSTN should probably use an access code to reach a local PSTN/Internet gateway - which is exactly the way you described. That access code should be assigned by a national telecom authority. Best regards, Beri .-------. | --+-- | Berislav Todorovic, B.Sc.E.E. | E-mail: BERI(a)etf.bg.ac.yu | /|\ Hostmaster of the YU TLD | |-(-+-)-| School of Electrical Engineering | Phone: (+381-11) 3221-419 | \|/ Bulevar Revolucije 73 | 3370-106 | --+-- | 11000 Belgrade SERBIA, YUGOSLAVIA | Fax: (+381-11) 3248-681 `-------' --------------------------------------------------------------------

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RE: VoIP Numbering Plan Vs. Domain names. IPNP
by Vered Nimrod 23 Apr '98

23 Apr '98

Do you happen to have the URL address for IETF ? * A user calling from a "net phone" would use a host name in the form 7.9.3.3.6.2.9.3.2.7.9.tpc.int to call the phone number +972-3-9263397 belonging to a "regular" PSTN (i.e. domain name is The manner that you are suggesting will be hard to use for the end user. Which will prefer to enter the DN and let the system’s network management to the resolving work. It might be the case for the universal IPNP system to behave in the manner that you are describing, but the end user still need a simplified way to enter the DN. ---------------------------------------- Eng. Nimrod Vered , B.Sc. E.E.E. VoIP Project Manager ======================== Tadiran Telecommunication Business and Access Division Tel/Fax : 972-3-9263397 E-Mail :nim@tadirantele.com ---------------------------------------- " Reality Starts With A Dream... ! " -----Original Message----- From: Berislav Todorovic [SMTP:BERI@etf.bg.ac.yu] Sent: ה אפריל 23 1998 16:22 To: nim(a)tadirantele.com Cc: dns-wg(a)ripe.net Subject: Re: VoIP Numbering Plan Vs. Domain names. IPNP >> Date: Thu, 23 Apr 1998 13:07:42 +0200 >> From: Vered Nimrod <nim(a)tadirantele.com> >> Subject: VoIP Numbering Plan Vs. Domain names. IPNP >> >> Is there any work being done on the above subject ? IETF has a working group dealing with IP Telephony, but I'm not sure whether they are dealing with the mentioned problem, or not. >> There is a need for a universal IPNP (IP Numbering Plan) system. So >> that every equipment that will be connected to the Internet will >> have a unique DN (Directory Number). The solution should rather be sought in the domain name system. And there is already a possible solution to the problem, outlined in the RFC 1530 (Principles of Operation of the TPC.INT Subdomain). This is, of course, my personal view of the matter and just one more idea on the solution to the problem. * A user calling from a "net phone" would use a host name in the form 7.9.3.3.6.2.9.3.2.7.9.tpc.int to call the phone number +972-3-9263397 belonging to a "regular" PSTN (i.e. domain name is the reversed phone number, much like IN-ADDR.ARPA system). In the DNS, there should be an "MX" record pointing to the PSTN/Internet gateway, e.g.: *.*.*.*.*.*.3.2.7.9.tpc.int. IN MX 10 pstn-gw.domain.com. The client application should consult the MX records, find out the name of the gateway and then connect to the gateway - the same way mail clients do. * A user calling from a PSTN should probably use an access code to reach a local PSTN/Internet gateway - which is exactly the way you described. That access code should be assigned by a national telecom authority. Best regards, Beri .-------. | --+-- | Berislav Todorovic, B.Sc.E.E. | E-mail: BERI(a)etf.bg.ac.yu | /|\ Hostmaster of the YU TLD | |-(-+-)-| School of Electrical Engineering | Phone: (+381-11) 3221-419 | \|/ Bulevar Revolucije 73 | 3370-106 | --+-- | 11000 Belgrade SERBIA, YUGOSLAVIA | Fax: (+381-11) 3248-681 `-------' --------------------------------------------------------------------

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VoIP Numbering Plan Vs. Domain names. IPNP
by Vered Nimrod 23 Apr '98

23 Apr '98

Hi, Is there any work being done on the above subject ? With the rapid development of the VoIP technology, the existing of many manufacturers that are developing VoIP systems and the fact that there are several VoIP systems that within them selves do have management capabilities, but not when trying to communicate outside of the system. There is a need for a universal IPNP (IP Numbering Plan) system. So that every equipment that will be connected to the Internet will have a unique DN (Directory Number). Thus, when trying to connect outside of the system to another subscriber that is connected to another system there will be an IPNP server that will resolve the DN into a valid IP address. This DN will be the same as an existing PSTN Numbering Plan, e.g. if my phone number is +972-3-9263397 ( 972- is the Israel code, 3- is the local area code, and 9263397 is the phone number). Then all we need to change is the local area code, same as done with the cellophane system. I.e. my Internet phone number will be +972-xx-9263397 where xx is to be determined. Another issue is that for each VoIP system there is a GateKeeper which one of its functions is to provide entrance to the system’s management. It is in my believe that those GateKeepers should be labeled with a unique set of domain names i.e. .VOIP e.g. tadirantele.voip or in a similar method. Regards, ---------------------------------------- Eng. Nimrod Vered , B.Sc. E.E.E. VoIP Project Manager ======================== Tadiran Telecommunication Business and Access Division Tel/Fax : 972-3-9263397 E-Mail :nim@tadirantele.com ---------------------------------------- " Reality Starts With A Dream... ! "

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Private Invitation
by 81400987＠hotmail.com 15 Apr '98

15 Apr '98

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One Million Dollars FREE!
by 00023648＠netcom.com 13 Apr '98

13 Apr '98

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26 Mar '98

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RIPE and Reverse DNS
by Andy Ethelston 26 Mar '98

26 Mar '98

This mail is for the attention of Ruediger Volk, I work for ANS Communications in England. We've setup a network which connects to the USA and provides a Backbone to AOL and many customers. One such customer requires a Reverse DNS address Space, it is our belief that in order to accomplish this request, we must first go through yourselves to have it delegated. I appreciate you are based in Amsterdam, and the fact this email is in English, however I'm having problems understanding the finer details of the situation in my own native language never mind in yours. I would be very grateful for any assistance you could offer me on this problem. Many thanks, Andy. Andy Ethelston Technical Support Engineer ANS Communications Europe Tel: +44 (0) 1923 258318 Mob: +44 (0) 410 601838 Email: aethelston(a)ans.net

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None
by LOPEC, S.L. 14 Feb '98

14 Feb '98

Muy Sr. nuestro: Solicitamos su atención para presentarle nuestra publicación semanal "Confidencial de Economia, Negocios y Bolsa" En ella encontrara junto a noticias y comentarios de actualidad tratados con un rigor, profundidad y seriedad difíciles de hallar en otras publicaciones de difusion masiva, otras secciones de gran interes profesional referidas al mundo de los negocios, tales como oportunidades, ofertas y demandas de empresas extranjeras interesadas en encontrar socios españoles o viceversa, concursos, licitaciones tanto a nivel autonomico como nacional y comunitario, asi como una extensa referencia al mundo de la Bolsa, con especial informacion de las apuestas mas osadas (compras y ventas) de la semana. En el caso de que, como esperamos, sea de su interes conocer la publicacion, adjunto a la presente le adelantarnos el sumario, al tiempo que le ofrecemos la posibilidad de que pueda recibir gratruitamente y sin compromiso la publicacion durante las cuatro proximas semanas, sin otro requisito que faciltarnos los datos que le solicitamos al final de la presente para poder asi cumplimentar el envio. Atentamente, CONFIDENCIAL DE ECONOMIA Y BOLSA ref: CNN98 NOMBRE: DOMICILIO: DP-POBLACION PROVINCIA PAIS ACTIVIDAD TELEFONO E-MAIL

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Recommendations for DNS
by Hans Niklasson 27 Jan '98

27 Jan '98

Greetings A little late perhaps, but better late then never. This is one of the actionspoints from RIPE-28, to present easy and short recommendations for setting up a DNS. I will be presenting this for the DNS WG on RIPE-29. Any suggestions or remarks will be very welcomed. Especially the times for the SOA records. DNS recommendations. By: Hans Niklasson <hasse(a)swip.net> Amar Andersson <amar(a)telia.net> Scope: This documents act as a recommendation for configuring your DNS. This is NOT a requirement, only a recommendation of things to think about when setting up your DNS. Purpose: To decrease lame delegations and limit unecessary traffic due to resolving problems, among other things. Records: ----------------------------------------------------------------------------- SOA The address in this field must be a valid e-mail address to the administrator for the DNS. Ex: domain.xx. 3600 SOA dns.domain.xx admin.domain.xx. SERIAL Serial number should follow this format: YYYYMMDDXX ( year.year.year.year.month.month.day.day.nr.nr ), where XX is the number of the latest update of the zone in the same day. Ex: 1998010101 ; serial TTL A good balance of this will reduce unecessary traffic between nameservers. Ex: 28800 ; refresh (8 hours) 7200 ; retry (2 hour) 604800 ; expire (7 days) 86400 ) ; minimum (1 day) MX When pointing a domain to a mailserver/hostname, don´t forget to add a glue record ( A ) for this. Ex: domain.xx. 86400 MX 10 mail.domain.xx. mail.domain.xx 86400 A 192.168.0.1 CNAME Use this with percausion. It is *not* recommended to use a CNAME for a mailservers hostname, as this can cause resolving problems and mailloops. A A gluerecord can only point to an IP address. PTR This is used for reverse lookup of the IP address to a hostname within the zone. Make sure that your PTR records and A records match. For each A record there has to be a PTR record, and vice versa. More tips: Unecessary glue data: Don´t add unecessary glue data about hosts that is not within the zone. This can cause resolving problems if the host changes IP address. Ex: domain.xx. 86400 MX 10 mail.server.xx. mail.server.xx 86400 A 192.168.0.1 Trailing dots: Don´t forget to add a "." at the end of the domain/ hostname. If this is forgotten, this will make the DNS to add the domain name to the domain/hostname again. This will cause resolving problems. Ex: domain.xx. 86400 MX 10 mail.domain.xx.domain.xx. Illegal characters: Only a-z , 0-9 and - is valid to use. All other characters is illegal and can cause the resolving to fail. General Points: Use the latest version of the DNS software for your platform. Check for updates regulary, as new versions has the latest solutions and information. Additional reading and references: RFC1537 ( RFC1912 ) ( Common DNS Operational and Configuration Errors ) "DNS & BIND 2nd Edition" by Paul Albitz & Cricket Liu from O´Reilly & Associates Inc. ftp://ftp.ripe.net/internet-drafts/draft-ietf-dnsind-classless- inaddr-04.txt ( For reverse delegation methods for blocks smaller than /24, 256 addresses ) http://www.dns.net/dnsrd/ ( DNS Resources Directory ) /Hans Niklasson Email: hasse(a)swip.net ----------------------------------------------------------------- SWipNet - The Swedish IP Network Netcom Systems AB

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Draft agenda DNS WG - RIPE 30
by Ruediger Volk, Deutsche Telekom - ZIOT IP41a 27 Jan '98

27 Jan '98

0. Agenda bashing 1. minutes 2. Followup on action items 2.1 Review of RFC 2.2 Drafting new recommendations 3. DNS Quality Check - using hostcount data (Peter Koch) 4. jspnrmptgsbssdir - some Microsoft originated DNS confusion (Peter Koch) 5. IETF report z. A.O.B. Ruediger Volk Deutsche Telekom AG -- Internet Backbone Engineering E-Mail: rv(a)NIC.DTAG.DE Phone: +49 251 910 350 fax: +49 251 910 399

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