| Cisco CCNA certification training includes | | | | below....R1(config-if)#frame map ip 172.12.123.2 122 |
| troubleshooting your own work and that of | | | | broadcastR1(config-if)#frame map ip 172.12.123.3 |
| others. The best CCNA certification training you | | | | 123 broadcast... and the RIP updates went out as |
| can do is indeed troubleshooting your own Cisco | | | | expected.R1#debug ip ripRIP protocol debugging is |
| router and switch configurations - as I'm always | | | | onR1#clear ip route *06:22:13: RIP: sending general |
| telling my students, "I can guarantee that any | | | | request on Loopback0 to 224.0.0.906:22:13: RIP: |
| error you make has been made before, and you'll | | | | sending general request on Serial0 to |
| probably see it again one day." One such common | | | | 224.0.0.906:22:13: RIP: ignored v2 packet from |
| error involves two very important CCNA | | | | 1.1.1.1 (sourced from one of our |
| certification topics - Frame Relay and routing | | | | addresses)06:22:14: RIP: received v2 update from |
| protocols.A student was working on his CCNA | | | | 172.12.123.3 on Serial006:22:14: 1.1.1.1/32 -> 0.0.0.0 |
| exam home lab and came up with an interesting | | | | in 3 hops06:22:14: 2.2.2.2/32 -> 0.0.0.0 in 2 |
| problem. He set Frame Relay up in a | | | | hops06:22:14: 3.3.3.3/32 -> 0.0.0.0 in 1 hops06:22:14: |
| hub-and-spoke configuration with R1 as the hub | | | | 172.12.23.0/24 -> 0.0.0.0 in 1 hops06:22:14: |
| and R2 and R3 as the spokes. He wrote the | | | | 172.12.123.0/24 -> 0.0.0.0 in 1 hops06:22:14: RIP: |
| following frame map statements:frame-relay map | | | | sending v2 update to 224.0.0.9 via Loopback0 |
| ip 172.12.123.2 122frame-relay map ip 172.12.123.3 | | | | (1.1.1.1)06:22:14: 2.2.2.2/32 -> 0.0.0.0, metric 3, tag |
| 123He was able to ping both spokes from the | | | | 006:22:14: 3.3.3.3/32 -> 0.0.0.0, metric 2, tag |
| hub, so he assumed everything was working | | | | 006:22:14: 172.12.23.0/24 -> 0.0.0.0, metric 2, tag |
| correctly. Then he configured RIP version 2 on | | | | 006:22:14: 172.12.123.0/24 -> 0.0.0.0, metric 1, tag |
| the router and got the following result after | | | | 006:22:14: RIP: sending v2 update to 224.0.0.9 via |
| running "debug ip rip" and clearing the routing table | | | | Serial0 (172.12.123.1)Cisco CCNA certification |
| with "clear ip route *":03:33:01: IP: s=172.12.123.1 | | | | depends on noticing details like these, and there's |
| (local), d=224.0.0.9 (Serial0), len 72, sending broad | | | | no better way to learn these details than by |
| multicast03:33:01: IP: s=172.12.123.1 (local), | | | | working on real Cisco routers and switches. |
| d=224.0.0.9 (Serial0), len 72, encapsulation | | | | Whether you're renting rack time online or buying |
| failedYou may have already spotted the problem, | | | | used Cisco routers and switches, real-time debugs |
| and if you did, your CCNA certification exam | | | | and configurations are the way to CCNA |
| studies are going well! The problem is that the | | | | certification exam success!Chris Bryant, CCIE |
| "broadcast" option was left off the frame map | | | | #12933, is the owner of The Bryant Advantage, |
| statements. "broadcast" must be configured on | | | | home of over 100 free certification exam |
| frame map statements in order to send | | | | tutorials, including Cisco CCNA certification test |
| broadcasts and multicasts across the frame link. | | | | prep articles. His exclusive Cisco CCNA study |
| As you know from your CCNA certification exam | | | | guide and Cisco CCNA training is also available!Visit |
| studies, RIP version 1 broadcasts updates and RIP | | | | his blog and sign up for Cisco Certification Central, |
| version 2 multicasts them, so the "broadcast" | | | | a daily newsletter packed with CCNA, Network+, |
| option must be present for either version to send | | | | Security+, A+, and CCNP certification exam |
| updates by using those frame mappings.He then | | | | practice questions! |
| rewrote the frame map statements as shown | | | | |