Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP
Glen Zorn <glenzorn@gmail.com> Mon, 17 September 2012 11:06 UTC
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Date: Mon, 17 Sep 2012 18:05:52 +0700
From: Glen Zorn <glenzorn@gmail.com>
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To: "VITON HORCAJO, Pedro (Pedro)" <pedro.viton@alcatel-lucent.com>
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Cc: "dime@ietf.org" <dime@ietf.org>
Subject: Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP
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On 09/17/2012 04:02 PM, VITON HORCAJO, Pedro (Pedro) wrote: > Hi: > After reviewing original RFC3588 and the lastest draft for 3588bis-34, > I have a couple of comments/questions related to the Host-IP-Address AVP > 1.- I don't have clear the behavior of a diameter peer when SENDING > the Host-IP-Address AVP in the CER/CEA messages, if using TCP to > transport Diameter. > In sections 5.3.1 (CER), 5.3.2(CEA) and 5.3.5 (Host-IP-Address AVP), > it indicates the behavior with respect to that AVP when using SCTP or > DTLS/SCTP as transport mechanism. > The Host-IP-Address AVP (AVP Code 257) is of type Address and is used > to inform a Diameter peer of the sender's IP address. All source > addresses that a Diameter node expects to use with SCTP [RFC4960] or > DTLS/SCTP [RFC6083] MUST be advertised in the CER and CEA messages by > including a Host-IP-Address AVP for each address. > When Diameter is run over SCTP [RFC4960] or DTLS/SCTP [RFC6083], > which allow connections to span multiple interfaces, hence, multiple > IP addresses, the Capabilities-Exchange-Answer message MUST contain > one Host-IP-Address AVP for each potential IP address that MAY be > locally used when transmitting Diameter messages. > That might lead to think that if using TCP, that AVP might/needs not > be sent. > However, not sending it would be a contradiction with the CER/CEA ABNF > message format, that states that the Host-IP-Address AVP is a > mandatory AVP with at least 1 ocurrence : > <CER> ::= < Diameter Header: 257, REQ > > { Origin-Host } > { Origin-Realm } > 1* { Host-IP-Address } <------------ > ... > I think it would be a good idea to clarify: > A.- whether Host-IP-Address MUST/SHOULD/MAY included in CER/CEA > messages if using TCP As you point out, the command definition for the CER requires at least on instance of the AVP. What is unclear? ...
- [Dime] [RFC3588bis-34] - Host-IP-Address AVP VITON HORCAJO, Pedro (Pedro)
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Glen Zorn
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP VITON HORCAJO, Pedro (Pedro)
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP VITON HORCAJO, Pedro (Pedro)
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Glen Zorn
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Glen Zorn
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Ben Campbell
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Ben Campbell
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Glen Zorn
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Ankur Garg
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP VITON HORCAJO, Pedro (Pedro)
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Ralph Loader
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Ralph Loader
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP Ralph Loader
- Re: [Dime] [RFC3588bis-34] - Host-IP-Address AVP jouni korhonen