Thank you, Alok and Avasarala.
I mean below:
A proxy MAY challenge to a sender with 407 response
due to authenticate a right sender or not.
(that is written in RFC3261 as Alok say)
*By the way,
may a receiver challenge to a proxy of a receiver's domain
with 407 response(as same as a proxy of a sender's domain
send to a sender) due to authenticate that this proxy
(in receiver's domain) is right or not?
I illustrate the above things with the following figure:
Alice may challenge to Proxy1 with 407 in F1(written in RFC3261).
May Bob challenge to Proxy2 in F7-1.
Then may Proxy2 return to response due to authenticate itself
as in F7-3.
Alok said:
Alice is not able to identify the source of the received response. So
if Bob sends '407 Proxy
Authenticate Response' to Alice; Alice will send the request with
authentication credentials in
Proxy-authenticate header.
Then
why can Proxy1 identify Alice.
I think If Proxy1 could identify Alice, Bob can identify Proxy2 as well.
Is it wrong?
Alice Proxy 1 Proxy 2 Bob
| | | |
| INVITE F1 | | |
|-------------------->| | |
| 407 F2 | | |
|<--------------------| | |
| ACK F3 | | |
|-------------------->| | |
| INVITE F4 | | |
|-------------------->| INVITE F5 | |
| 100 F6 |-------------------->| INVITE F7 |
|<--------------------| |-------------------->|
| | | 407 F7-1 |
| | |<--------------------|
| | | ACK F7-2 |
| | |-------------------->|
| | | INVITE F7-3 |
|<--------------------| 100 F8 |-------------------->|
| |<--------------------| |
| | | 180 F9 |
| | 180 F10 |<--------------------|
| 180 F11 |<--------------------| |
|<--------------------| | 200 F12 |
| | 200 F13 |<---------------------|
| 200 F14 |<-------------------| |
|<--------------------| | |
| ACK F15 | | |
|-------------------->| ACK F16 | |
| |-------------------->| ACK F17 |
| | |--------------------->|
| Both Way RTP Media |
|<================================>|
| | | BYE F18 |
| | BYE F19 |<---------------------|
| BYE F20 |<--------------------| |
|<--------------------| | |
| 200 F21 | | |
|--------------------->| 200 F22 | |
| |------------------->| 200 F23 |
| | |--------------------->|
| | | |
Thanks,
Tabt
2010/2/8 Couret Tabt <[email protected]>:
> Dear folks,
>
> I have a question about '407 Proxy Authenticate Response'
> in RFC3261 below:
>
> May a UA(ex.Bob as a receiver) send '407 Proxy Authenticdate' Response
> as same as a proxy send.
> Then does the other UA(Alice as a sender) respond reInvite to Bob(as a
> receiver)
> as same as the sender send it to the proxy.
>
> Moreover, how does Alice judge who sends the response
> (from whether Proxy or UA )?
> Does she judge using Route Header?
>
> If you know it, please let me know.
>
> Thanks,
> Tabt
>
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