In the following draft:
draft-ietf-sip-call-flows-05.txt
There are two sections I'm intereseted in:
"3.1.2 Successful SIP to SIP through two proxies"
and
"3.1.3 SIP to SIP with Multi Proxy Authentication"
In section 3.1.2, the first few transactions are:
| | | |
| INVITE F1 | | |
|--------------->| | |
| 407 F2 | | |
|<---------------| | |
| ACK F3 | | |
|--------------->| | |
| INVITE F4 | | |
|--------------->|
The "407" message has a "Proxy-Authenticate" header and
the INVITE (F4) has an "Authorization" header.
In section 3.1.3, the first few transactions are:
User A Proxy 1 Proxy 2 User B
| INVITE F1 | | |
|----------->| | |
| 407 Proxy Authorization Required F2 |
|<-----------| | |
| ACK F3 | | |
|----------->| | |
| INVITE F4 | | |
|----------->| | |
Once again, the "407" message has a "Proxy-Authenticate"
header BUT THIS TIME the INVITE (F4) has a
"Proxy-Authorization" header.
Is one of these wrong?
Shouldn't the "Proxy-Authorization" header be used in both cases?
Cheers,
Attila
Attila Sipos
Software Engineer
<http://www.vegastream.com>
VegaStream : A World of difference for your Integrated Communications
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