Datasheet

Lab – Configuring Frame Relay and Subinterfaces

R1(config-if)# ipv6 eigrp 1

R3(config)# router eigrp 1

R3(config-router)# no auto-summary

R3(config-router)# eigrp router-id 3.3.3.3

R3(config-router)# network 10.1.1.0 0.0.0.3

R3(config-router)# network 192.168.3.0

R3(config-router)# ipv6 router eigrp 1

R3(config-rtr)# router-id 3.3.3.3

R3(config-rtr)# no shutdown

R3(config-rtr)# interface g0/0

R3(config-if)# ipv6 eigrp 1

R3(config-if)# interface s0/0/1

R3(config-if)# ipv6 eigrp 1

Step 5: Verify end-to-end connectivity.

Ping PC-C from PC-A. If your pings were unsuccessful, troubleshoot until you have end-to-end connectivity.

Note: It may be necessary to disable the PC firewall for pings to be successful.

Part 4: Troubleshoot Frame Relay

In Part 4, you will break the Frame Relay connection established earlier and use some tools to troubleshoot

Frame Relay. A variety of tools are available for troubleshooting Frame Relay connectivity issues.

Step 1: Debug Local Management Interface (LMI).

a. Issue the debug frame-relay lmi command on R1. The output gives detailed information on all LMI data.

Keepalives are sent every 10 seconds by default, so you may have to wait until you see any output. The

output shows an outgoing LMI packet with a sequence number of 50. The last LMI message received

from FR had a sequence number of 49. The output is also showing an incoming LMI message from FR to

R1 with a sequence number of 50. DLCI 103 is the only DLCI on this link, and it is currently active.

R1# debug frame-relay lmi

Frame Relay LMI debugging is on

Displaying all Frame Relay LMI data

R1#

*Jun 26 18:28:45.922: Serial0/0/0(out): StEnq, myseq 50, yourseen 49, DTE up

*Jun 26 18:28:45.922: datagramstart = 0xC318D54, datagramsize = 13

*Jun 26 18:28:45.922: FR encap = 0xFCF10309

*Jun 26 18:28:45.922: 00 75 01 01 01 03 02 32 31

*Jun 26 18:28:45.922:

*Jun 26 18:28:45.922: Serial0/0/0(in): Status, myseq 50, pak size 13

*Jun 26 18:28:45.922: RT IE 1, length 1, type 1

*Jun 26 18:28:45.922: KA IE 3, length 2, yourseq 50, myseq 50

*Jun 26 18:28:45.922: PVC IE 0x7 , length 0x6 , dlci 103 , status 0x2 , bw 0

b. Issue the undebug all command to turn off debugging.

Note: This command can be abbreviated to u all. This is useful to know when debug information is

flooding the screen.