Experiment on interconnection VLAN of multi port and single arm router

Experimental content

1)  Build as shown in the figure 476 The interconnection Ethernet structure shown , Create in switch 3 individual VLAN, Namely VLAN2VLAN3 and VLAN4, Connect the port of the switch 12 and 3 Assigned to VLAN2 Connect the port of the switch 4、5 and 6 Assigned to VLAN3, Connect the port of the switch 7、8 and 9 Assigned to VLAN4 The router 3 Interfaces are respectively connected to the ports of the switch 3.6 and 9. Realize the connection in different VLAN The communication process between terminals on the switch port of .

   2)  The construction in this experiment is shown in the figure 4.84 Network structure shown , Divide Ethernet into 3 individual VLAN, Namely VLAN 2、VLAN3 and VLAN4, And make the terminal A、B and G Belong to VLAN2, terminal E、F and H Belong to VLAN3, terminal C and D Belong to VLAN4. Router R Connect Ethernet with a single physical interface through a router that connects Ethernet with a single physical interface R Implementation belongs to different VLAN The communication process between terminals .

Two 、 The experiment purpose

(1) Master the switch VLAN The configuration process .

(2) Master the router interface configuration process .

(3) verification VLAN between IP Packet transmission process .

(4) Verify that the multi port router implements multiple VLAN The process of interconnection

(5) Verification is implemented with a single router physical interface VLAN The mechanism of Interconnection .

(6) Verify the configuration process of the single arm router .

(7) verification VLAN Partition process .

(8) verification VLAN between IP Packet transmission process .

3、 ... and 、 Experimental principle

1) Create in switch 3 individual VLAN, Namely VLAN 2、VLAN3 and VLAN 4, And according to the table 4.6 Shown VLAN Mapping with switch ports , Assign switch ports to each VLAN.

2)  Pictured 4.84 Router shown R Physical interface 1 Connect to the switch S2 port 5. For switches S2 port 5 There are two requirements : First, it must be all VLAN share , Yes, there must be a switching path to all terminals . So the switch SI、S2 and S3 Created in the VLAN And LAN The mappings between and ports are shown in table 4.7 To table 4.9 Shown . For routers R Physical interface 1 There are two requirements : First, it must be divided into multiple logical interfaces , Each logical interface is connected to one VLAN; The second is the router R Physical interface 1 And the switch S2 port 5 The transmission between MAC Frame must carry VLANID, Routers and switches pass through VLANID Determine the MAC The frame corresponds to Logical interface and the mac To which the frame belongs vlan