Passing Cisco CCNA And CCNP Exams: Ping And Extended Ping
I often tell CCNA and CCNP candidates that you do your best learning when you screw something up. I often get a funny look right after I say that, but the only way to develop your Cisco troubleshooting skills – the skills you’ll need to pass your Intro, ICND, and CCNP exams – is by actually fixing configurations. Since your employer will take a dim view of you practicing these skills on his or her network, you better do so on your home lab!
Three essential tools for networking and CCNA/CCNP exam success are ping, extended ping, and traceroute. Today we’re going to take a look at the ping that we’re used to using for LAN issues, and the extended ping.
We’re all familiar with “basic” ping, where you use the ping command followed by the IP address you want to confirm IP connectivity with. When you’ve got connectivity, you will see five exclamation points, as seen here:
R1#ping 172.12.123.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.12.123.2, timeout is 2 seconds:
!!!!!
Success rate is...
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