Take a look to this scenario:
Sip user A is "mikymouse" and its IP Addres is 149.35.48.200
Sip user B is "minnie" and its IP Addres is 149.35.48.201
User A & B register themselves with a proxy at the domain "disneyland.com":
[EMAIL PROTECTED]
[EMAIL PROTECTED]
When "mikymouse" wants to INVITE "minnie" he send a sip message to the proxy
that start with
INVITE [EMAIL PROTECTED] ....
When "minnie" responds with the OK "mikymouse can read the "minnie"'s private IP
address from the Contact header
Contact: <sip:[EMAIL PROTECTED]>
When "mikymouse" has to send an ACK or a BYE he uses:
ACK [EMAIL PROTECTED] ....
or
BYE [EMAIL PROTECTED] ....
Can he use the private IP Addres ?
i.e.
ACK [EMAIL PROTECTED] .....
or
BYE [EMAIL PROTECTED] ....
A proxy can reject a sip message that contains the private IP Addres?
Thanks
Lorenzo
___________________________________________
Lorenzo Boffelli
STRE Engineer
Allied Telesis K.K.
Head Office / 4F TOC Bldg, 7-22-17 Nishi-Gotanda,
Shinagawa-ku, Tokyo Japan, 141-8635
European R&D Center
Piazza Tirana, 24/4 b Phone: +39 02 41411201
20147 Milano Fax: +39 02 41411260
ITALY
Email: [EMAIL PROTECTED]
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