// archives

Archive for May, 2008

Tutorial: IPv6 Tunnels Part 2 - Automatic 6to4 Tunnels

By Arden Packeer, CCIE #20716 ⋅ May 31, 2008 ⋅ 8 comments

In our previous article on IPv6 tunnels, we looked at manual GRE and IPv6IP Tunnels in order to provide connectivity for IPv6 networks segregated by an IPv4 network. By tunneling IPv6 over IP, we can migrate our internal networks to IPv6 and still have communication between these networks, even though we are seperated by an IPv4 network. In this article we will be using another method to provide connectivity for IPv6 networks segregated by an IPv4 network: The Automatic 6to4 Tunnel! Mastering IPv6 is not only an important part of a CCIE candidates journey, but will become increasingly important as the global pool of IPv4 addresses diminishes….

Accessing your console lines with Reverse SSH

By Arden Packeer, CCIE #20716 ⋅ May 30, 2008 ⋅ Post a comment

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 rss feed! You can also receive updates from this blog via email. Thanks for visiting!Greg Ferro from [...]

U.U.U Ping Response

By Arden Packeer, CCIE #20716 ⋅ May 27, 2008 ⋅ Post a comment

Ever wonder why you get a U.U.U ping response time instead of a UUUUU for icmp unreachable messages? Well wonder no more! Packetlife has a great article dissecting the U.U.U ping response. I knew about icmp rate-limit but I never put two and two together before reading the article. Awesome!

Internetwork Expert Twitter

By Arden Packeer, CCIE #20716 ⋅ May 25, 2008 ⋅ Post a comment

Looks like Internetwork Expert has set up a twitter account. You can follow them here: http://twitter.com/InternetworkExp

Tutorial: Time-Based ACLS

By Arden Packeer, CCIE #20716 ⋅ May 20, 2008 ⋅ 3 comments

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.

Lots of Dynamips / Dynagen Sample Lab Topologies

By Arden Packeer, CCIE #20716 ⋅ May 18, 2008 ⋅ 2 comments

I was browsing through my collection of resources and I found a great collection of sample Dynamips / Dynagen topologies to play around with. You can download most of the common lab topologies from the various training vendors as Dynagen .net files. This would be an awesome collection of resources for someone studying for Cisco [...]

Awesome Collection of Cisco Links

By Arden Packeer, CCIE #20716 ⋅ May 12, 2008 ⋅ Post a comment

Michael Morris has updated his blog on NetworkWorld.com with a HUGE collection of useful cisco related links. Found a few gems in there!

Blog: My CCIE story….

By Arden Packeer, CCIE #20716 ⋅ May 8, 2008 ⋅ 26 comments

I have been waiting to write this post. I am just so deliriously happy right now. Before I start, I want to thank my beautiful wife for her support. She was that voice I heard in my head that told me to just keep going, and never give up when I’d lost hope. I’m glad [...]

CCIE #20716

By Arden Packeer, CCIE #20716 ⋅ May 7, 2008 ⋅ 40 comments

I passed. I’m so happy right now. :)
I’ll post a full write up later…time for a scotch or three!!! CCIE #20716…has a nice ring to it!

Blog: Coming up for air…2 days to go

By Arden Packeer, CCIE #20716 ⋅ May 5, 2008 ⋅ 13 comments

Okay, in the last week I have redone Mocklabs 3,4,5,6, and 7, Workbook2 Lab 8, Workbook 3 labs 7, 8 and 9. I’m done with labs. :) I was mainly focusing on speed because there wasn’t anything on those labs that I hadn’t seen before. At this stage, I’m pretty exhausted and I think I [...]

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