Consider the following command and an abbreviated version of its output: $ netstat nr Kernel IP routing table Destination Gateway Genmask Flags Iface 192.168.165.0 0.0.0.0 255.255.255.0 U ethO…

In a routing table, the entry with a 'Destination' of `0.0.0.0` and a 'Genmask' of `0.0.0.0` represents the default route. Any traffic that does not match more specific routes will be sent to the 'Gateway' specified in this row. In the provided output, this gateway is `192.168.165.1`.

`255.0.0.0` is a network mask, specifically for the loopback network, not a gateway address.

`255.255.255.0` is a network mask for the `192.168.165.0` network, indicating its subnet, not a gateway address.

`0.0.0.0` in the 'Destination' column signifies the default route, but the actual gateway IP address is found in the 'Gateway' column for that specific entry.

`192.168.165.0` is a network address, specifically for the local `eth0` interface, not the default gateway.