The following example shows routing table output as a response to the netstat -rn command:
netstat -rn Routing tables Internet: Destination Gateway Flags Refs Use Interface default 172.25.100.1 UGS 3 21397 e0a 127.0.0.1 127.0.0.1 UH 0 0 lo 172.25.100/24 link#11 UC 0 0 e0a 172.25.100.1 0:d0:d3:0:30:0 UHL 1 0 e0a 172.25.100.236 0:1:30:b8:30:c0 UHL 0 0 e0a 172.25.100.237 0:1:30:b8:2e:c0 UHL 0 0 e0a 198.18.0/24 link#4 UC 0 0 e4d 198.18.1 link#8 UC 0 0 e3d 198.18.2 link#15 UC 0 0 lacp-ext 198.18.3 link#16 UC 0 0 multi-ext 198.18.10 link#4 UC 0 0 e4d 198.19.2 link#17 UC 0 0 lacp-cis Internet v6: Destination Gateway Flags Refs Use Interface default fe80::21b:2bff:fed7:ec00%e1a UG 0 0 e1a ::1 ::1 UH 0 0 lo fd00:abcd::/64 link#3 UC 0 0 e1a fd20:81be:b255:4213::/64 link#3 UC 0 0 e1a fd20:81be:b255:4213::1 link#3 UHL 0 0 e1a fe80::%e1a/64 link#3 UC 0 0 e1a fe80::21a:a2ff:fe0d:c97f%e1a 0:1a:a2:d:c9:7f UHL 0 0 e1a fe80::21b:2bff:fed7:ec00%e1a 0:1b:2b:d7:ec:0 UHL 1 0 e1a fe80::%lo/64 fe80::1%lo U 0 0 lo fe80::%vif1/64 link#9 UC 0 0 vif1 ff01::/32 ::1 U 0 0 lo ff02::%e1a/32 link#3 UC 0 0 e1a ff02::%lo/32 fe80::1%lo UC 0 0 lo ff02::%vif1/32 link#9 UC 0 0 vif1
In this example, the destination can be a host 172.25.100.1, a network 172.25.100/24, or the default route. If the destination is a subnet on a network, the network number is followed by a forward slash (/) and a number that describes the network mask for that network.
The IPv6 routing table also has the same network parameters except that the network mask is replaced by the prefix length for that network.