Linux routing table information-route command

Use command: route

The route command displays and sets the Linux routing table

-A: Set the address type;

-C: Print the route cache of the Linux kernel;

-V: detailed information mode;

-N: Do not perform DNS reverse lookup, directly display the digital form of IP address;

-e:netstat format displays the routing table;

-net: The routing table to a network;

-host: The routing table to a host.

Add: Adds the specified route record;

Del: Deletes the specified route record;

Target: Destination network or destination host;

GW: Set default gateway;

MSS: Set the maximum block length of TCP (MSS), in megabytes;

window: Specifies the TCP window size of the TCP connection through the routing table;

Dev: The network interface represented by the route record.

Instance:

[Email protected] ~]# route-ekernel IP Routing tabledestination Gateway genmask Flags MSS Window irtt Iface10.0.0.0*255.255.255.0U0 0          0Eth0link-local *255.255.0.0U0 0          0Eth0default10.0.0.2        　　  0.0.0.0Ug0 0          0Eth0

What the column information represents

Destination: Destination network or host.

Gateway address.

Genmask: Network mask for the target network. "255.255.255.255" represents a host. "0.0.0.0" represents the gateway.

Flags: Tags

U up indicates that this route is currently in the boot state.

H host, which indicates that the gateway is a host.

G Gateway, which indicates that this gateway is a router.

R reinstate route, which uses dynamic routing to reinitialize the route.

D dynamically, this route is dynamically written.

M Modified, this route is dynamically modified by the routing daemon or the director.

! Indicates that this route is currently in a closed state.

Linux routing table information-route command