Re: [Sip-implementors] Sip proxy

[Medhavi Bhatia]

There are several cases:   1) Intermediate proxy is a stateless proxy. In this case your second description does the job. But this will not work for a firewall proxy. 2) Intermediate proxy is the firewall. In this case the Contact in the register should be that of the intermediate proxy. The UA should also issue a local registration to the intermediate proxy. ( There are two registrations here, and there has to be local configuration also for GAUTAM on intermediate proxy). 3) Section 4.2.6.1 describes an escape format for the request URI, which can be used. In this case the intermediate proxy can forward the registration, change the contact address to himself, and store the original contact as a dynamic/static configuration. If he is a firewall, he MUST change the contact address. ----- Original Message ----- From: Hrishikesh Saria To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Monday, April 30, 2001 6:11 AM Subject: [Sip-implementors] Sip proxy Hi All   I have a scenario which I am not very clear about. Lets say I am inside a Lan and my registration with my SIP proxy is HRISHKESH and the Sip proxy in my Lan IP is 10.10.10.8, If I want to send a INVITE message to someone who is outside his lan, and whose registration with his proxy is GAUTHAM and his  SIP proxy is 20.20.20.30, what will be the request URI when I send it the message to my SIP proxy. Will  request line be   INVITE [EMAIL PROTECTED] SIP/2.0   and gautham has to have a registry in my SIP proxy       or the request line will be   INVITE [EMAIL PROTECTED] SIP/2.0    but the message will be sent to My proxy whose IP is 10.10.10.8.   Regards Thanks in Advance Hrishikesh Saria