What Port numbers should I be concerned with for CCENT

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Apr 24th, 2008
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As the title says, what port number should I be concerned with for the CCENT exam. Will the following suffice?


21 -FTP

22 -SSH


25 -SMTP


80 -HTTP

110 -POP3

443 -HTTPS



69 -TFTP

Also what services at what layers should I be awayre of?

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celticfc2007 Thu, 04/24/2008 - 07:00
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I was starting to answer your question, when I saw the second question. Really, you should just buy a good book. I recommend the official Cisco ICND1 study guide by Wendell Odom. If you learn that book cover to cover + practice, I'm sure you'll ace the test!

Good luck

tim_gulley Mon, 04/28/2008 - 06:21
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Those are the port numbers and Transmission Layer Protocols from Odoms ICND1 book!

brianjpisa Mon, 04/28/2008 - 07:39
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Know as many popular ones as you can, not just for the CCENT, but for real world. If you're at your job and somebody says they need a port opened for remote desktop for example, it's a lot quicker and easier knowing it right off the bat then going to look it up.

jim_berlow Mon, 04/28/2008 - 13:20
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Your list looks good (as far as I can tell). I have not attempted that exam for many, many years, though (and it has changed significantly during that time) - so I would venture that if your textbook only covers these ports then you are probably good knowing just those ports.


jim_berlow Mon, 04/28/2008 - 13:26
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BTW - what UDP / TCP port does EIGRP reside on? (Hint...this is a trick question)...

...How about RIP?

...How about OSPF?

...How about BGP?

Sorry, couldn't resist - every Cisco certified person should learn these...


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