Version 6.6
187
MP-11x & MP-124
User's Manual
17. SIP Definitions
FXS/FXO endpoints - Endpoint Phone Number Table page (see Configuring Endpoint
Phone Numbers on page
203
)
Accounts - Account table (see 'Configuring Account Table' on page
183
)
Click the
Proxy Set Table
button to Open the Proxy Sets Table page to configure
groups of proxy addresses. Alternatively, you can open this page from the
Proxy Sets
Table
page item (see 'Configuring Proxy Sets Table' on page
178
for a description of this
page).
17.3.1 SIP Message 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 re-send the INVITE with a Proxy-
Authorization header containing the credentials.
User agents, Redirect or Registrar servers typically use the SIP 401 Unauthorized
response to challenge authentication containing a WWW-Authenticate header, and expect
the re-INVITE to contain an Authorization header.
The following example shows the Digest Authentication procedure, including computation
of user agent credentials:
1.
The REGISTER request is sent to a Registrar/Proxy server for registration:
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]>
Call-ID: [email protected]
User-Agent: Sip-Gateway/MediaPack/v.6.60.010.006
CSeq: 1 REGISTER
Contact: sip:[email protected]:
Expires:3600
2.
Upon receipt of this request, the Registrar/Proxy returns a 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] >
Call-ID: [email protected]
Cseq: 1 REGISTER
Date: Mon, 30 Jul 2012 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 created.
4.
Since the algorithm is MD5:
•
The username is equal to the endpoint phone number "122".
•
The realm return by the proxy is "audiocodes.com".
•
The password from the
ini
file is "AudioCodes".
Содержание Media Pack MP-124
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Страница 23: ...Part I Getting Started with Initial Connectivity...
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Страница 33: ...Part II Management Tools...
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Страница 93: ...Part III General System Settings...
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Страница 103: ...Part IV General VoIP Configuration...
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Страница 199: ...Part V Gateway Application...
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Страница 319: ...Part VII Maintenance...
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Страница 389: ...Part IX Diagnostics...
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Страница 417: ...Part X Appendix...
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Страница 584: ...User s Manual Ver 6 6 www audiocodes com...