MicroNugget: How to Control Traffic Filtering ACLs on the ASA

In this video, Anthony Sequeira covers how to control traffic filtering configurations with ACLs on the Cisco ASA. In a default firewall configuration, low-security interfaces cannot go in and access high-security interfaces. This is fine until you need to allow temporary access from outside your organization, and that’s where traffic filtering comes into play.

One of the primary purposes of traffic filtering is to selectively allow people from outside your organization through your firewall on an ad hoc basis. If you need an outside vendor to work remotely, a default firewall configuration will create a tremendous permissions headache. With traffic filtering, however, you can set up access control lists and drastically simplify the entire process. In this video, Anthony will walk you through each step of configuring an active security appliance on a GNS3, then go inside of it to set up an access control list. This will get you up and running, and you can then adjust the settings to meet the needs of your specific situation.

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[vegaq]

Very informative, now i do understand the logic.

[rahulkumarjha]

I think for a beginner like me you could have explained the config of all the devices used in this video instead of just showing telnet. I know you explained that in the previous one but that is without switch and config was simple over there. Kindly make some video for the config of each device used here from scratch.

[CodHumors]

quick question, why Telnet over SSH?
Especially since you are accessing something secure.... I'd use 22 not 23.

[ICEMAN_]

How did you get switches emulated in GNS3 ?

[edwardbugtong]

Can anyone provide the initial config? Its not working for me. Please help