Re: [Sip] Question regarding conflicting grammar for IPV6 SIP URI andRFC 3986
"Brett Tate" <brett@broadsoft.com> Thu, 18 December 2008 23:26 UTC
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Thread-Topic: [Sip] Question regarding conflicting grammar for IPV6 SIP URI andRFC 3986
Thread-Index: AclhYfVRlzZaF+P8TK6RWN+juPccYQAAEkDA
From: Brett Tate <brett@broadsoft.com>
To: "Vijay K. Gurbani" <vkg@alcatel-lucent.com>, SIP@ietf.org
Subject: Re: [Sip] Question regarding conflicting grammar for IPV6 SIP URI andRFC 3986
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Intentional or not, the sip-uri (excluding IPv6reference) appears to not violate extending rfc2396's absoluteURI because the definition was a structured subset of opaque_part. However the introduction of brackets to enclose an IPv6 address causes the sip-uri to no longer be a valid absoluteURI (rfc2396) or absolute-URI (rfc3986). I'm currently not sure if a fix is really needed or how best to correct it. Escaping the brackets might work; however that might cause more headaches. > -----Original Message----- > From: Vijay K. Gurbani [mailto:vkg@alcatel-lucent.com] > Sent: Thursday, December 18, 2008 5:43 PM > To: Brett Tate > Cc: SIP@ietf.org > Subject: Re: [Sip] Question regarding conflicting grammar for > IPV6 SIP URI andRFC 3986 > > Brett Tate wrote: > > Greetings, > > > > Mike's interpretation looks correct. Is this something > that should be > > fixed? If so, should the fix be placed within > > draft-ietf-sip-ipv6-abnf-fix? > > What should the fix be? Mike's claim is that rfc3261 > violates rfc3986, yet rfc3986 is internally consistent in > that it requires IPv6 literals to be enclosed in "[" and "]", > viz: > > IP-literal = "[" ( IPv6address / IPvFuture ) "]" > > At the same time, rfc3261 is internally consistent in that it > requires IPv6reference to be enclosed in "[" and "]", viz: > > IPv6reference = "[" IPv6address "]" > > Furthermore, I don't think the intent is to produce SIP-URI > (as defined in rfc3261) from a URI (as defined in rfc3986), is it? > Note that rfc3986 defines URI as: > > URI = scheme ":" hier-part ... > heir-part = "//" ... > > If this was true, a SIP URI would need to be produced as: > > sip://[2001:db8:10] ... > > In other words, I am trying to understand what the exact > problem is before we try to figure out where to put the fix in... > > Thanks, > > - vijay > -- > Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent 1960 > Lucent Lane, Rm. 9C-533, Naperville, Illinois 60566 (USA) > Email: vkg@{alcatel-lucent.com,bell-labs.com,acm.org} > Web: http://ect.bell-labs.com/who/vkg/ > _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use sip-implementors@cs.columbia.edu for questions on current sip Use sipping@ietf.org for new developments on the application of sip
- Re: [Sip] Question regarding conflicting grammar … Hisham Khartabil
- [Sip] Question regarding conflicting grammar for … Szilagyi, Mike
- Re: [Sip] Question regarding conflicting grammar … Brett Tate
- Re: [Sip] Question regarding conflicting grammar … Paul Kyzivat
- Re: [Sip] Question regarding conflicting grammar … Vijay K. Gurbani
- Re: [Sip] Question regarding conflicting grammar … Brett Tate
- Re: [Sip] Question regarding conflicting grammar … Hadriel Kaplan
- Re: [Sip] Question regarding conflicting grammar … Hadriel Kaplan
- Re: [Sip] Question regarding conflicting grammar … Paul Kyzivat
- Re: [Sip] Question regarding conflicting grammar … Brett Tate
- Re: [Sip] Question regarding conflicting grammar … Brett Tate
- [Sip] Summary (Was: [Re: Question regarding confl… Vijay K. Gurbani
- Re: [Sip] Summary (Was: [Re: Question regarding c… Paul Kyzivat
- Re: [Sip] Summary (Was: [Re: Question regarding c… Hadriel Kaplan
- Re: [Sip] Summary (Was: [Re: Question regarding c… Vijay K. Gurbani
- Re: [Sip] Summary (Was: [Re: Question regarding c… Hadriel Kaplan
- Re: [Sip] Summary (Was: [Re: Question regarding c… Vijay K. Gurbani
- Re: [Sip] Summary (Was: [Re: Question regarding c… Dean Willis
- Re: [Sip] Question regarding conflicting grammar … Dale Worley
- Re: [Sip] Summary (Was: [Re: Question regarding c… Eric Burger
- Re: [Sip] Summary (Was: [Re: Question regarding c… Cullen Jennings
- Re: [Sip] Question regarding conflicting grammar … Szilagyi, Mike
- Re: [Sip] Question regarding conflicting grammar … Brett Tate