Details about the route table in the vro

The route table information can reflect the current working status and problems of the vro. It is very important for users to read the information, and it is more convenient and convenient to use. The ip address of the next hop router entry of the gateway. The router defines a link to the next router through the interface and gateway. Generally, the interface and gateway are metric hops of the same network segment, the quality of this route record. Generally, if there are multiple route records that reach the same destination, the router will use the one with a small metric value:

Route table information article 1 0.0.0.0 0.0.0 192.168.123.254 192.168.123.88

Default route: that is, when the destination CIDR block of a data packet is not in your route record, where should your router send the data packet! The gateway of the default route is determined by the default gateway on your connection, I will send this data packet to the address 192.168.123.254 through the interface 192.168.123.88. This address is an interface of the next vro, so that this data packet can be delivered to the next vro setting, which has nothing to do with me. The line quality of the route record.

Route table information article 2 0.0.0.0 0.0.0 192.168.123.254 192.168.123.68

Default route: This route record indicates that when the destination network segment of a packet received is not in my route record, I will send the packet to the address 192.168.123.254 through the interface 192.168.123.68, this address is an interface of the next vro, so that this packet can be delivered to the next vro for processing, and it has nothing to do with me.

Route table information article 3 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1

Local Loop: all the addresses in the network segment 127.0.0.0 point to their own machines. If such data is received, the route quality of the route record should be sent to the address.

Route table information article 4 192.168.123.0 255.255.255.0 192.168.123.68 192.168.123.68

Route record of the direct connection CIDR Block: What to do when the router receives a packet sent to the direct connection CIDR Block? In this case, the interface and gateway of the route record are the same. When I receive a packet whose destination CIDR block is 192.168.123.0, I will send the packet directly through the interface 192.168.123.68 because the port is directly connected to the CIDR Block 192.168.123.0, the line quality of the route record.

Route table information article 5 192.168.123.0 255.255.255.0 192.168.123.88 192.168.123.88

When I receive a packet whose destination CIDR block is 192.168.123.0, I will send the packet directly through the interface 192.168.123.88, because this port is directly connected to the network segment 192.168.123.0, the line quality of this route record.

Route table information article 6 192.168.123.68 255.255.255.255 127.0.0.1 127.0.0.1

Local Host Routing: what will happen when the router receives the packet sent to itself? When the destination network segment of a packet received is 192.168.123.68, I will accept the packet, because this packet is sent to me, the line quality of this route record.

Route table information article 7 192.168.123.88 255.255.255.255 127.0.0.1 127.0.0.1

Local Host Routing: what will happen when the router receives the packet sent to itself? When the destination network segment of a packet received is 192.168.123.88, I will accept the packet, because this packet is sent to me, the line quality of this route record.

Route table information article 8 192.168.123.255 255.255.255.255 192.168.123.68 192.168.123.68

Local broadcast route: What to do when the router receives the local broadcast sent to the direct network segment, when the destination network segment of the broadcast packet I receive is 192.168.123.255, I will send this data from the 192.168.123.68 interface to broadcast the situation, the line quality of this route record.

Route table information article 9 192.168.123.255 255.255.255.255 192.168.123.88 192.168.123.88

Local broadcast route: What to do when the router receives the local broadcast sent to the direct network segment, when the destination network segment of the broadcast packet I receive is 192.168.123.255, I will send this data from the 192.168.123.88 interface to broadcast the situation, the line quality of this route record.

Route table information article 10 224.0.0.0 224.0.0.0 192.168.123.68 192.168.123.68

Multicast Route: What should I do when a vro receives a multicast packet? When I receive a multicast packet, I will send the data from the 192.168.123.68 interface as a multicast packet, the line quality of the route record.

Route table info. 11th fig. 0.0.0 224.0.0.0 192.168.123.88 192.168.123.88

Multicast Route: What should I do when a vro receives a multicast packet? When I receive a multicast packet, I will send the data from the 192.168.123.88 interface as a multicast packet, the line quality of the route record.

Route table information 12th route 255.255.255.255.255 255.255.255 192.168.123.68 192.168.123.68

Broadcast route: What should I do when a vro receives an absolute broadcast packet? When I receive an absolute broadcast packet, this packet is discarded.