Monthly Archives: June 2012

PacketPushers with Wireshark Developer Gerald Combs

Most of my friends know that I’m a huge fan of Wireshark. Most also know that I’m a huge fan of the PacketPushers Podcast. So what better than an episode with Gerald Combs, leader of the Ethereal and Wireshark project? … Continue reading

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Hairpinning Internet and VPN Traffic in Cisco IOS with NAT

This week I wanted to address a concept that comes up occasionally. This is the concept of hair-pinning Internet traffic through a VPN. For this particular case study, we will use an IOS based Cisco router to terminate both ends … Continue reading

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The History of the PIX/ASA (TAC Security Podcast)

Anyone who deals with the Cisco ASA on a regular basis, understands it is a unique device. Actually it is an evolution that began many years ago and was eventually acquired by Cisco. If you ever wanted to know the … Continue reading

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When to Use a Crossover Cable

For technicians that are beginning their network careers today, there is often a struggle to learn things that have just always automagically worked for them. One example of this is the crossover cable. Most modern network devices have a function … Continue reading

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Old School Method of IOS Static NAT Exemption

Last week, I wrote an article that demonstrated the challenges of static NAT when combined with VPNs using RFC1918 address space. We created exemptions using route-maps within the static nat statements. Cisco didn’t introduce route-maps for static translations until 12.2(4)T. … Continue reading

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Exempting Static Translations in IOS NAT

Last week I wrote an article that defined the need for NAT exemption. This article used the example of a single device that terminated a VPN to a network that used the RFC1918 private address on the remote side. Additionally, … Continue reading

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Cisco Live 2012–CCIE Party Venue Confirmed!

Well I have speculated for months that Cisco Live CCIE Party would be at the USS Midway. Yesterday I received my invite and can officially confirm the party is at the USS¬†Midway¬†Museum. This looks like a really cool venue. This … Continue reading

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