Security
Tutorial: Time-Based ACLS
Time based ACLS are useful when you want to restrict traffic based on time of day. For example, you might employ time based ACLs if you wanted to only allow web surfing during a particular time of day or allow access to a server during work hours. We will be exploring these scenarios in this tutorial.
Security: Common Ethertypes in Vlan Access Maps
I was putting together my study notes on Vlan Access Maps and all the common ethertypes that I was asked to match in all the labs that I have done. I was trying to figure out how to match spanning tree BPDU’s when they are transported in Ethernet frames, and was having real difficulty locating this on the Cisco DOC CD…..
Tutorial: How to use Cisco MQC & NBAR to filter websites like Youtube
Thanks for visiting! If you’re new here, you may want to subscribe to my RSS feed. This blog posts regular tutorials, news, and study tips about networking, especially about Cisco CCIE related topics. Go ahead, subscribe to the feed! You can also receive updates from this blog via email. Thanks for visiting!I was asked a [...]
VLAN Access Lists
I read this over on group study, which i thought was a really good example of how of why in the CCIE lab we should try and deny the traffic you don’t want and permit the rest. You will probably run into a lot less trouble. This goes against the usual security advice of permit [...]
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