Network address translator (NAT) is software that runs on a router and maps one IP address or a group of IP addresses to another IP address or group of IP addresses. To check the sessions on the PortMaster that are using NAT, click Monitor==>NAT Sessions.
| PortMaster ID | IP address or name of the selected PortMaster. |
| Router Port | Port on which the NAT session exists. |
| Type | TCP, UDP, or ICMP. |
| Direction | Inbound or outbound. |
| Src Address | Source IP address of the NAT session before translation. |
| Src Port | Source TCP, UDP, or ICMP port of the NAT session before translation. |
| Destination Address | Destination IP address of the NAT session before translation. |
| Destination Port | Destination TCP, UDP, or ICMP port of the NAT session before translation. |
| Xlt Src Address | Source address of the NAT session after translation. |
| Xlt Src Port | TCP, UDP, or ICMP port of the NAT session after translation. |
| Xlt Destination Address | Destination address of the NAT session after translation. |
| Xlt Destination Port | Destination TCP, UDP, or ICMP port after translation. |
| Idle Timeout | Time in minutes the NAT session has been idle. |