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You are here: Home / 101 CCNA LABS / Wide Area Networks Solutions / Lab 30 Solution: Configuring Frame Relay Multipoint Subinterfaces

Lab 30 Solution: Configuring Frame Relay Multipoint Subinterfaces

Task 1:

Router#config t

Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#host R1

R1(config)#interface s1/0

R1(config-if)#encapsulation frame-relay

R1(config-if)#^Z

R1#

Router#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#hostname R2

R2(config)#int s0/0

R2(config-if)#encap frame-relay

R2(config-if)#end

R2#

Task 2:

R1#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

R1(config)#int s1/0.500 multipoint

R1(config-subif)#ip add 192.168.7.1 255.255.255.252

R1(config-subif)#frame-relay map ip 192.168.7.2 111 broadcast

R1(config-subif)#end

R1#

R1#show ip interface brief

Interface                  IP-Address      OK? Method Status                Protocol

Serial1/0                    unassigned      YES manual up                    up

Serial1/0.500              192.168.7.1     YES manual up                    up

NOTE: Notice that the Serial1/0.500 subinterface is configured with the frame-relay map ip command in the same manner that a physical interface would be configured. Keep this in mind.

R2#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

R2(config)#int serial 0/0.600 multipoint

R2(config-subif)#ip address 192.168.7.2 255.255.255.252

R2(config-subif)#frame-relay map ip 192.168.7.1 222 broadcast

R2(config-subif)#end

R2#

R2#sh ip int brief

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0                    unassigned      YES manual up                    up

Serial0/0.600              192.168.7.2     YES manual up                    up

Task 3:

For reference information on verifying Frame Relay mapping, please refer to:

Lab 26 Configuration and Verification Task 3

Lab 27 Configuration and Verification Task 3

R1#ping 192.168.7.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.7.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/8 ms

R2#ping 192.168.7.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.7.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/8 ms

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