NAT table
The NAT table shows the router's currently active NAT (Network Address Translation) connections. For each connection it shows how an internal address and port are translated to an external address and port. The table helps you understand active connections and narrow down connection problems.
Depending on the router's operating mode, the same view also appears as a DMZ NAT table and an IP Passthrough NAT table. The layout, the columns and their meaning are identical across all three variants – only the network area whose connections are shown differs.
The entries are a snapshot: connections are constantly being established and closed. Refresh reloads the current state.
Save the NAT table as a file​
Save NAT table downloads the complete table as a file. This is useful for archiving the current state or forwarding it to support for analysis.
Print the NAT table​
Print NAT table opens a print-friendly view of the table that can be printed directly.
Table entries​
The table shows the NAT connections with the following columns:
| Column | Meaning |
|---|---|
| Protocol | Transport protocol of the connection (e.g. TCP or UDP). |
| Inside global | Address and port of the internal device as presented to the outside by the router. |
| Inside local | Actual local address and port of the internal device in the home network. |
| Outside local | Address and port of the remote host from the local network's point of view. |
| Outside global | Address and port of the remote host on the internet. |
| TTL (sec) | Remaining validity of the entry in seconds (Time to Live) before it is removed. |
Refresh reloads the table to display the current state of the connections.
The addresses in the columns are shown in the format IP address:port. A short or decreasing TTL means the connection will soon be removed from the table unless further traffic occurs.
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