interopSymmetricUdpSourcePortEnable

Enable/Disable Symmetric UDP Source Port
          
Indicates whether the unit always uses the same local port
when sending SIP traffic over UDP.
          
Symmetric UDP ports are sometimes needed to traverse NAT/
Firewall devices.
          
Note that when changing this setting, all destinations are
automatically thrown out of the penalty box, when applicable.
          
  * enable: SIP signaling sent over UDP originates from the
    same port as the port on which the user agent is
    listening. This is configured in the PortConfig parameter.
    When enabled, ICMP messages are not processed, which means
    that unreachable targets will take longer to detect.
  * disable: SIP signaling over UDP uses a randomly-generated
    originating port. ICMP errors are processed correctly.
          
Note: This parameter applies only to Trunk gateways. For
Endpoint gateways, only symmetric ports are used.

MIB

MX-SIPEP-MIB

OID

.0.1400.1.50000.600

Type

scalar

Access

readwrite

Status

current

Parent

interopGroup