AudioCodes Mediant 600 Bedienungsanleitung Seite 426

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Seitenansicht 425
SIP User's Manual 426 Document #: LTRT-83303
Mediant 1000 & Mediant 600
F7 (10.8.201.10 >> 10.8.201.108 200 OK):
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacRKCVBud
From: <sip:[email protected]>;tag=1c5354
To: <sip:[email protected]>;tag=1c7345
Server: Audiocodes-Sip-Gateway/Mediant 1000/v.5.40.010.006
CSeq: 18154 BYE
Supported: 100rel,em
Content-Length: 0
7.13.2 SIP Authentication Example
The device supports basic and digest (MD5) authentication types, according to SIP RFC
3261 standard. A proxy server might require authentication before forwarding an INVITE
message. A Registrar/Proxy server may also require authentication for client registration. A
proxy replies to an unauthenticated INVITE with a 407 Proxy Authorization Required
response, containing a Proxy-Authenticate header with the form of the challenge. After
sending an ACK for the 407, the user agent can then resend the INVITE with a Proxy-
Authorization header containing the credentials.
User agent, redirect or registrar servers typically use 401 Unauthorized response to
challenge authentication containing a WWW-Authenticate header, and expect the re-
INVITE to contain an Authorization header.
The following example describes the Digest Authentication procedure, including
computation of user agent credentials:
1. The REGISTER request is sent to Registrar/Proxy server for registration, as follows:
REGISTER sip:10.2.2.222 SIP/2.0
Via: SIP/2.0/UDP 10.1.1.200
From: <sip: [email protected]>;tag=1c17940
To: <sip: [email protected]>
User-Agent: Audiocodes-Sip-Gateway/Mediant 1000/v.5.40.010.006
CSeq: 1 REGISTER
Contact: sip:[email protected]:
Expires:3600
2. Upon receipt of this request, the Registrar/Proxy returns 401 Unauthorized response.
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.2.1.200
From: <sip:[email protected] >;tag=1c17940
To: <sip:[email protected] >
Cseq: 1 REGISTER
Date: Mon, 30 Jul 2001 15:33:54 GMT
Server: Columbia-SIP-Server/1.17
Content-Length: 0
WWW-Authenticate: Digest realm="audiocodes.com",
nonce="11432d6bce58ddf02e3b5e1c77c010d2",
stale=FALSE,
algorithm=MD5
3. According to the sub-header present in the WWW-Authenticate header, the correct
REGISTER request is formed.
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