Cisco Packet Tracer Direct Route ACL

If the Office of Personnel and Academic Affairs cannot access the Finance Office, and the Finance Office can access all other hosts, it can be achieved by doing reflexive ACLs.

If the reflexive ACL is done, it can be realized that the Human Resources Office and the Academic Affairs Office cannot visit the Finance Office, and the Finance Office can visit the Personnel Office and the Academic Affairs Office.

1. Open the software Cisco packet tracer and drag in a router 2811.

2. Click on the router and a dialog box will pop up. Start by turning off the power.

3. After turning off the power of the router, select nm-2fe2w in the physical module and drag it to the place pointed by the arrow.

4. Turn on the power.

5. Enter the configuration module, pop up a dialog box, and click OK.

6. Complete the addition of the fastethernet interface.

Are IP Addresses Configured for the Interconnection Interfaces of Two Routers? Is the port no shutdown?

Connect using a crossover line or an autoconnect line.

The same layer comes to connect the equipment with a cross line; Different self-layer devices are connected with direct wires, and the transceiver ports of devices on the same layer are relatively fixed (1, 2 is to transmit, 3, 6 is to receive), so it is necessary to use cross-wires to connect the transceiver of devices on the same layer. If a direct connection line is used, there will be a combination of sending and receiving, receiving and receiving, and there will inevitably be a phenomenon that the sending and receiving cannot be normal. In the same way, the transceiver ports of different devices are opposite, so a direct line is used in this case.

If a cross line is used, a combination of sending and receiving, receiving, and receiving packets will occur, and messages cannot be sent and received normally.

Direct connection is required when the following devices are interconnected: 1switches or hubs with routers; 2.Computers (including servers and workstations) vs. switches or hubs

When these devices are interconnected, they need to use crossed lines: 1The computer is connected to the router; 2.

switch-to-switch connection; 3.hub-to-hub connections; 4.Two PCs are directly connected; 5.

Router vs. Router; 6.hub vs. switch.

However, the current network or terminal devices can basically be adaptive.

Because routers belong to special computers.

Pass-through: Host-to-switch or hub.

Route to a switch or hub.

Accommodating crossovers: switch-to-switch.

Hub-to-hub.

Host-to-host.

Hub-to-switch.

The router is directly connected to the host.

And you're using a switch with routing in your dorm room, not a router.

Principle: The same kind of equipment is connected to the crossed line.

Different devices are connected to the direct line.

Hope you understand! Just remember!

Because different devices use straight wires, and the same equipment uses cross wires.