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Learning by Doing: CISCO Certified Network ... - SCN Research

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It’s ok if you see it, but you probably will not be able to ping outside of your<br />

workstation without seeing that error message. A quirk with Microsoft.<br />

6. Test connectivity from router to router (from the router) <strong>by</strong> using ping from<br />

Randy to Ward.<br />

You should see:<br />

RouterA#ping 192.168.30.2<br />

Type escape sequence to abort.<br />

Sending 5, 100-<strong>by</strong>te ICMP Echos to 192.168.30.2, timeout is 2 seconds:<br />

!!!!!<br />

Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/36 ms<br />

RouterA#<br />

7. Test connectivity from workstation to workstation (from DOS) <strong>by</strong> using ping<br />

from workstation A to workstation B.<br />

You should see:<br />

C:\WINDOWS\Desktop>ping 192.168.4.2<br />

Pinging 192.168.4.2 with 32 <strong>by</strong>tes of data:<br />

Reply from 192.168.4.2: <strong>by</strong>tes=32 time=21ms TTL=126<br />

Reply from 192.168.4.2: <strong>by</strong>tes=32 time=20ms TTL=126<br />

Reply from 192.168.4.2: <strong>by</strong>tes=32 time=21ms TTL=126<br />

Reply from 192.168.4.2: <strong>by</strong>tes=32 time=21ms TTL=126<br />

Ping statistics for 192.168.4.2:<br />

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),<br />

Approximate round trip times in milli-seconds:<br />

Minimum = 20ms, Maximum = 21ms, Average = 20ms<br />

C:\WINDOWS\Desktop><br />

8. Let’s see our route from workstation A to workstation B (from DOS).<br />

You should see:<br />

C:\WINDOWS\Desktop>tracert 192.168.4.2<br />

Tracing route to STAR10616119 [192.168.4.2]<br />

over a maximum of 30 hops:<br />

1 1 ms 1 ms 1 ms 192.168.3.1<br />

2 25 ms 25 ms 25 ms 192.168.30.2<br />

3 30 ms 30 ms 30 ms STAR10616119 [192.168.4.2]<br />

Trace complete.<br />

C:\WINDOWS\Desktop><br />

9. All good? Ok…now let’s have some fun with a challenge! Let’s see if we have<br />

some neighbors using our <strong>CISCO</strong> Discovery Protocol, a.k.a. CDP (enabled <strong>by</strong><br />

default at boot). CDP is a layer 2 protocol (good test question too).<br />

Randy>sh cdp neighbors<br />

183

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