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Tuesday, February 9, 2010

Cisco CCNA (640-553) Security Exam Training - Using the Access-List Remark Command In today's article, I'm going to quickly inform you about the Cisco

In today's article, I'm going to quickly inform you about the Cisco IOS Global configuration command named "access-list remark".

CCNA's (like you) use the "access-list remark" command to write a helpful comment (remark) for an entry in a numbered IP access list.

Note: The comment (remark) can be up to 100 characters long; and any comment (remark) that is longer than 100 characters will be truncated.

Below is the command's syntax:
access-list access-list-number remark remark
As you can see, the command uses the access-list-number and remark arguments.
access-list-number - This argument is used to indicate the number of an IP access list.
remark - And, this argument is the actual comment (remark) that describes the access list entry. (Remember the comment (remark) has a limit of 100 characters)
Below is an example of the command being used:

Router>enable
Router#configure terminal
Router(config)#access-list 1 remark Only allow the abc workstation to get through
Router(config)#access-list 1 permit 172.69.2.98
Router(config)#access-list 1 remark Do not allow the xyz workstation to get through
Router(config)#access-list 1 deny 172.69.3.14
Router(config)#exit
Router#copy run start

In the example above, the workstation on the abc network that has the IP address 172.69.2.98 will be able to get its IP traffic through; but, the workstation that is on the xyz network that has the IP address 172.69.3.14 will not.
As you can clearly see, the access-list remark statements are commenting on the ACL behavior.
And, like with mostly all Cisco IOS commands; you can use the word "no" in front of the command to remove (disable) the configured command; like you see below:
Router(config)#no access-list 1 remark

By the way, if you decide to use the command, make sure your router(s) is running Cisco IOS 12.0(2)T or higher.

I hope this article was very informative and helped you quickly understand the usage of the access-list remark command. If you need to learn more; I suggest you visit my website, were you'll find the latest information regarding the Cisco CCNA (640-553) Security exam techniques.

To your success,
Charles Ross, CCNP #CSCO10444244 is the owner of Ittechtips.com; where you'll find free comprehensive information and videos on how to pass the CCNA (640-553) security exam.
Sign-Up for "100 Free Videos" and, also learn more about the new "Cisco CCNA (640-553) Video Accelerated Training Course" at his website. http://www.ittechtips.com
Article Source: http://EzineArticles.com/?expert=Charles_E_Ross

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