Hi, Pls see comments inline:
-- regards Hul On Thu, Feb 14, 2008 at 4:05 PM, Karthikeyan Gopal , TLS-Chennai < [EMAIL PROTECTED]> wrote: > Hi All, > > In SIP outbound draft 11 it was mentioned that flow back to particular > UA can be Identified based on instance-id and reg-id. > [Hb] I dont think Instance-id and reg-id can be used to identify the ip address of user. They are just used to identify the uniqueness of device. > Then what is the need for flow-token. > [Hb]Flow token actually contains information of src ip address and port(Flow token = HMAC(users address, local address, key)). Thus a stateless proxy need not have any other information to correctly send the request to UE. > > Is this flow-token is used only in case of edge-proxy support? > [Hb] Yes, it appears that flow token is used only by edge proxy. > If it is so what is the need of instance-id in case of edge-proxy. > [Hb] Flow token may not be usefull in case of edge proxy, but surely as per outbound section 7(bullet 3), its usefull for Authoritative proxies and SCSCF (in IMS) . > Thanks & Regards, > > Karthikeyan.G > > > DISCLAIMER: > > ----------------------------------------------------------------------------------------------------------------------- > > The contents of this e-mail and any attachment(s) are confidential and > intended for the named recipient(s) only. > It shall not attach any liability on the originator or HCL or its > affiliates. Any views or opinions presented in > this email are solely those of the author and may not necessarily reflect > the opinions of HCL or its affiliates. > Any form of reproduction, dissemination, copying, disclosure, > modification, distribution and / or publication of > this message without the prior written consent of the author of this > e-mail is strictly prohibited. If you have > received this email in error please delete it and notify the sender > immediately. Before opening any mail and > attachments please check them for viruses and defect. > > > ----------------------------------------------------------------------------------------------------------------------- > > _______________________________________________ > Sip mailing list http://www.ietf.org/mailman/listinfo/sip > This list is for NEW development of the core SIP Protocol > Use [EMAIL PROTECTED] for questions on current sip > Use [EMAIL PROTECTED] for new developments on the application of sip > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
