The -r option of the netstat command displays the routing table for the local host. This table shows the status of all routes that the host knows about. You can run this option of netstat from your user account.
The following example shows output from the netstat -r command.
Routing Table: IPv4 Destination Gateway Flags Ref Use Interface -------------------- -------------------- ----- ----- ------ --------- host15 myhost U 1 31059 hme0 10.0.0.14 myhost U 1 0 hme0 default distantrouter UG 1 2 hme0 localhost localhost UH 42019361 lo0 Routing Table: IPv6 Destination/Mask Gateway Flags Ref Use If --------------------------- --------------------------- ----- --- ------ ----- 2002:0a00:3010:2::/64 2002:0a00:3010:2:1b2b:3c4c:5e6e:abcd U 1 0 hme0:1 fe80::/10 fe80::1a2b:3c4d:5e6f:12a2 U 1 23 hme0 ff00::/8 fe80::1a2b:3c4d:5e6f:12a2 U 1 0 hme0 default fe80::1a2b:3c4d:5e6f:12a2 UG 1 0 hme0 localhost localhost UH 9 21832 lo0 |
The following table describes the meaning of the various parameters of the screen output of the netstat —r command.
Parameter |
Description |
---|---|
Destination Destination/Mask |
Specifies the host that is the destination endpoint of the route. Note that the IPv6 routing table shows the prefix for a 6to4 tunnel endpoint (2002:0a00:3010:2::/64) as the route destination endpoint. |
Gateway |
Specifies the gateway to use for forwarding packets. |
Flags |
Indicates the current status of the route. The U flag indicates that the route is up. The G flag indicates that the route is to a gateway. |
Use |
Shows the number of packets sent. |
Interface |
Indicates the particular interface on the local host that is the source endpoint of the transmission. |