SIP NAT Interface

The following tables lists the SIP NAT function interface parameters you need to configure on the Oracle® Enterprise Session Border Controller (E-SBC).

Parameter Description
realm ID Name of the external realm. The realm ID must be unique; no two SIP NATs can have the same realm ID.

This realm ID must also correspond to a valid realm identifier entered when you configured the realm.

external proxy address IPv4 address of the SIP element (for example, a SIP proxy) in the external network with which the E-SBC communicates. Entries must follow the IP address format.
external proxy port UDP/TCP port of the SIP element (for example, a SIP proxy) in the external network with which the E-SBC communicates.

Minimum value is 1025, and maximum value is 65535. Default is 5060.

external address IPv4 address on the media interface in the external realm. Enter a value that ensures any packet with an external address value as its destination address is routed to the E-SBC through the media interface connected to or routable from the external realm. Entries must follow the IP address format.

To specify whether the external realm referenced in this field is private or public, configure the SIP config’s NAT mode.

home address IPv4 address on the media interface in the home realm. Enter a value that ensures any packet with a home address value as its destination address must be routed to the E-SBC through the media interface connected to or routable from the home realm. Entries must follow the IP address format.

The value entered in this field must be different from the IP address value of the home realm’s network interface element.

The home realm network interface is associated with this SIP NAT by its realm ID and the realm’s identifier and network interface value you entered when you configured the realm. The realm’s network interface identifier value corresponds to this SIP NAT’s realm ID, the SIP config’s home realm ID, and the media manager’s home realm ID.

home proxy address Sets the IP address for the home proxy (from the perspective of the external realm).

By default, this field is empty.

An empty home proxy address field value signifies that there is no home proxy, and the external address will translate to the address of the E-SBC ’s SIP proxy. Entries must follow the IP address format.

home proxy port Sets the port number for the home realm proxy.

Value can be set to zero (0). Minimum is 1025 and maximum is 65535. Default is 5060.

route home proxy Whether to route all inbound requests for the SIP NAT to the home proxy.

enabled adds route if Request-URI is not the E-SBC

disabled does not route inbound requests to the home proxy

forced always adds route