Principle and experiment of single-arm routing

single-arm routing principle: an infinite number of logical sub-interfaces are configured through a physical interface on a router to achieve different access between VLANs.

The principle of configuring one-arm routing:

First Add a VLAN tag on the logical subinterface of the router,

then when configuring an IP address for a subinterface,

in then Configure duplex for the ports connected to the switch in the physical interface,

finally the port is interfaced with the no shut command.

Configure the Topology diagram and command steps for a single-arm route:

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// in router vlanip address, Finally, the physical interface is activated. (To configure a single-arm route, first add the vlan ip address, finally activating the physical interface on the back to the physical interface. )

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// in the Switch Added on vlan10 and vlan20, disable routing, configure a trunk link for the port of the linked router , and add different interfaces to different VLAN .

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// in the VPCS Virtual network card, first configure the network card IP address and Gateway, in the ping command to test if there is interoperability.

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The test result of the Ping command.

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This article is from the "Routing" blog, so be sure to keep this source http://9863378.blog.51cto.com/9853378/1616404

Principle and experiment of single-arm routing