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Traci Hannah

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I typically inform CCNA and CCNP candidates that you do your very best studying when you screw some thing up. I usually get a humorous look correct following I say that, but the only way to produce your Cisco troubleshooting capabilities - the capabilities you are going to need to have to pass your Intro, ICND, and CCNP exams - is by in fact repairing configurations. Due to the fact your employer will take a dim watch of you practicing these skills on his or her network, you greater do so on your property lab! 3 necessary resources for networking and CCNA/CCNP examination achievement are ping, prolonged ping, and traceroute. Today we're going to just take a glance at the ping that we are employed to working with for LAN concerns, and the prolonged ping. We're all acquainted with "basic" ping, wherever you use the ping command followed by the IP handle you want to confirm IP connectivity with. When you've acquired connectivity, you will see five exclamation details, as viewed right here R1ping 172.twelve.123.two Variety escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.12.123.2, timeout is 2 seconds !!!!! Achievement amount is 100 percent (five/5), spherical-trip min/avg/max 68/68/seventy two ms The default supply IP address for ping is the IP handle closest to the location IP address. Other defaults - 5 ICMP packets will be sent (which is why you see 5 exclamation factors), and they're sent two seconds apart. That is good for quite a few basic scenarios, but as you progress through your networking career and most superior eventualities in your CCNA / CCNP scientific tests, you will want to adjust some of these defaults. What could you do if you desired to send 10,000 pings? What if you necessary your router's loopback tackle to be the source IP handle for the pings? What if you required to send them five seconds apart, as a substitute of two? That is the place prolonged ping happens in. To use prolonged ping, just kind "ping" and hit enter. (Observe that you are unable to use extended ping in person exec mode - you should be in enable mode to do so.) R1ping % Incomplete command. "incomplete command" signifies that the router is waiting for an IP deal with you cannot use prolonged ping in user exec mode. R1enable R1ping Protocol ip Target IP address 172.16.123.1 Repeat rely five a thousand Datagram dimensions 100 Timeout in seconds two Extended commands n y Supply deal with or interface loopback0 Variety of services Set DF little bit in IP header? no Validate reply information? no Info pattern 0xABCD Loose, Rigorous, Report, Timestamp, Verbosenone Sweep variety of dimensions n Kind escape sequence to abort. Sending one thousand, one hundred-byte ICMP Echos to 172.16.123.one, timeout is 2 seconds Packet sent with a source address of 1.1.one.one ....................................... In this case in point, I sent one thousand ICMP packets to an address that does not exist, so I am obtaining periods as a substitute of exclamation points. This illustration exhibits you the many alternatives you have with prolonged ping. Now that I've sent these one thousand pings, let's say that I want to cease that approach. At the commencing of the basic ping output, you see this phrase Form escape sequence to abort. This escape sequence works for ping, prolonged ping, and traceroute. Funny thing, though - Cisco doesn't explain to you what the escape sequence is! A single day, this will genuinely come in helpful. The escape sequence is , Two times in fast succession. Following I applied it in this illustration, the pings stopped and I got this message Results amount is percent (/192) The ping stopped soon after 192 ICMP packets had been sent. This keystroke normally takes a small apply, so follow it in your property lab. Figuring out how to use extended ping will genuinely arrive in useful on your CCNA and CCNP exams as nicely as your real-existence networking job, and recognizing how to stop an prolonged ping will as nicely!

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