Version 7.2 361 Mediant 800B Gateway & E-SBC
User's Manual 17. Control Network
Parameter Description
Encapsulating Protocol
encapsulating-protocol
[SIPInterface_Encapsulating
Protocol]
Defines the type of incoming traffic (SIP messages) expected on the
SIP Interface.
[0] No Encapsulation (default) = Regular (non-WebSocket) traffic.
[1] WebSocket = Traffic received on the SIP Interface is identified
by the device as WebSocket signaling traffic (encapsulated by
WebSocket frames). For outgoing traffic, the device encapsulates
the traffic using the WebSocket protocol (frames) on the TCP/TLS
ports.
For more information on WebSocket, see SIP over WebSocket on
page 776.
Note: WebSocket encapsulation is not supported for UDP ports.
Enable TCP Keepalive
tcp-keepalive-enable
[SIPInterface_TCPKeepalive
Enable]
Enables the TCP Keep-Alive mechanism with the IP entity on this SIP
Interface. TCP keep-alive can be used, for example, to keep a NAT
entry open for clients located behind a NAT server, or simply to check
that the connection to the IP entity is available.
[0] Disable (default)
[1] Enable
Note: To configure TCP keepalive, use the following ini file
parameters: TCPKeepAliveTime, TCPKeepAliveInterval, and
TCPKeepAliveRetry.
Used By Routing Server
used-by-routing-server
[SIPInterface_UsedByRoutin
gServer]
Enables the SIP Interface to be used by a third-party routing server for
call routing decisions.
[0] Not Used (default)
[1] Used
For more information on the third-party routing server feature, see
Centralized Third-Party Routing Server on page 294.
Pre-Parsing Manipulation
Set
pre-parsing-man-set
[SIPInterface_PreParsingMa
nSetName]
Assigns a Pre-Parsing Manipulation Set to the SIP Interface. This lets
you apply pre-parsing SIP message manipulation rules on any
incoming SIP message received on this SIP Interface.
By default, no Pre-Parsing Manipulation Set is assigned.
To configure Pre-Parsing Manipulation Sets, see Configuring Pre-
parsing Manipulation Rules on page 424.
Note:
Pre-Parsing Manipulation is done only on incoming calls.
The device performs Pre-Parsing Manipulation before Pre-
Classification Manipulation and Classification.
Classification
Classification Failure
Response Type
classification_fail_response_
type
[SIPInterface_ClassificationF
ailureResponseType]
Defines the SIP response code that the device sends if a received SIP
request (OPTIONS, REGISTER, or INVITE) fails the SBC
Classification process.
The valid value can be a SIP response code from 400 through 699, or
it can be set to 0 to not send any response at all. The default response
code is 500 (Server Internal Error).
This feature is important for preventing Denial of Service (DoS)
attacks, typically initiated from the WAN. Malicious attackers can use
SIP scanners to detect ports used by SIP devices. These scanners
scan devices by sending UDP packets containing a SIP request to a
range of specified IP addresses, listing those that return a valid SIP
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