AudioCodes E-SBC

CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
When enabled, the device compares the source IP address of
the first incoming packet to the remote IP address stated in
the opening of the channel. If the two IP addresses don't
match, the NAT mechanism is activated. Consequently, the
IP address of the outgoing media stream to the remote
destination is obtained by the source IP address of the first
incoming packet.
Note: The NAT mechanism must be enabled for the
parameter to take effect. To enable NAT, see the NATMode
parameter).
[EnableUDPPortTranslation] Enables UDP port translation.
■ [0] = (Default) Disables UDP port translation.
■ [1] = Enables UDP port translation. The device compares
the source UDP port of the first incoming packet to the
remote UDP port stated in the opening of the channel. If
the two UDP ports don't match, the NAT mechanism is
activated. Consequently, the remote UDP port of the
outgoing stream is replaced by the source UDP port of the
first incoming packet.
Note:
■ For the parameter to take effect, a device reset is
required.
■ The NAT mechanism and IP address translation must be
enabled for the parameter to take effect, using the
NATMode parameter and the EnableIpAddrTranslation
parameter, respectively.
'SIP NAT Detection'
configure voip > sip-
definition advanced-
settings > sip-nat-
detect
[SIPNatDetection]
Enables the device to detect whether the incoming INVITE
message is sent from an endpoint located behind NAT.
■ [0] Disable = Disables the device's NAT Detection
mechanism. Incoming SIP messages are processed as
received from endpoints that are not located behind NAT
and sent according to the SIP standard.
■ [1] Enable = (Default) Enables the device's NAT
Detection mechanism.
DNS Parameters
The Domain name System (DNS) parameters are described in the table below.
Table 68-15:DNS Parameters
Parameter Description
'Default Primary DNS Server IP'
configure network > dns settings > dns-
default-primary-server-ip
[DefaultPrimaryDnsServerIp]
Defines the address of the
default primary DNS
server.
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