Blog


Multi-factor Authentication Now a CAT 1 in DoD

The time finally came for multifactor authentication in DoD.  The DoD finally put their feet down on securing privileged account access.  For all devices/products coming into DoD (especially through DoDIN/UC APL testing), will be held to account for the Network Device Management (NDM) Security Requirements Guide (SRG).  The NDM SRG contains only a single CAT […]


NIST FIPS 140-2 RNG Transition Affecting UC APL

For those product vendors that have been able to get listed and certified on the DoD Unified Capabilities Approved Products List (UC APL), there is a prerequisite certification required called FIPS 140-2.  FIPS 140-2 is a certification program managed by the National Institute for Standards and Technology (NIST) and more specifically the Cryptographic Module Validation […]


IPv6 Security – Server Operating Systems

The DoD has done an excellent job in annotating the best security practices for operating systems for years with its Security Technical Implementation Guides, or STIGs.  In fact, STIGs for networking systems like routers, IDS/IPS, switches, devices, etc have been updated to reflect the new reality: IPv6.  However, with STIGs on the operating system there […]


Tachyon Dynamics Speaking on IPv6 NFV at the North American IPv6 Summit

Tomorrow, our very own Jeremy Duncan will be speaking on “IPv6 Best Practices in Network Functions Virtualization (NFV) with Vmware NSX,” tomorrow around 11:10 am MDT.  We are also here in the Denver Tech Center, so come on by and let’s talk!  We have a booth right in front of the main conference room. If […]


Tachyon Dynamics Sponsoring the 2015 North American IPv6 Summit

We are excited to announce Tachyon Dynamics is now a Silver Sponsor for the North American IPv6 Summit.  This summit has turned out to be the largest collection of IPv6 experts, vendors and enthusiasts in North America – we would argue the world.  So much great and new content will be talked about this year […]


Inexpensive 802.1x Solutions

Many enterprises in the DoD and US Federal Government are struggling with how to implement inexpensive 802.1x solutions for their wired LANs.  Especially in the DoD, there are specific regulations that require the use of 802.1x on the Unclassified Networks (NIPRNet) and Classified Networks (SIPRNet).  For your reference, those requirements are called Security and Technical […]


IPv6 Whitebox Networking Presentation

We had a great time at the North American IPv6 Summit last week.  I recommend everyone check out the virtual downloads and sessions, as there was so much great content this year.  Most of this year’s excitement is how IPv6 intersects with things like Software Defined Networking (SDN), OpenStack, Whitebox networking, and Network Functions Virtualization […]


Speaking on IPv6 Capabilities of Whitebox Networking

Here in Denver, Jeremy Duncan (@nacnud) will be speaking on the IPv6 capabilities of whitebox networking at the North American IPv6 Summit on Thursday, 25 September, 1:30 – 2:30 pm.  More details on this presentation, as well as other great talks, are located on the conference website here: http://www.rmv6tf.org/na-ipv6-summit/2014-na-ipv6-summit/2014-speakers-topics Presentation Synopsis Jeremy will outline all […]


DoD APLITS Requiring Client Certificates

In a previous post, I warned everyone that accessing the DoD’s Approved Products List Integrated Tracking System (APLITS) will require a client certificate.  Currently, the APLITS system accepts the use of a DoD Common Access Card, or CAC, to access.  However, this limits access to the APLITS site to only DoD civilian, military and contractor […]


OSPFv3 Authentication Trailers – IPv6 Capitulations

A few weeks ago, the IETF updated the newest in a long line of what I like to call “IPv6 capitulations.”  Going on a rant here – the IETF fought long and hard to have a robust, secure, and interoperable protocol with IPv6.  This is one of the many examples where it is being systematically […]


DoD UC APL Testing and Windows Security: DoD IAVerify

Completing the hurdle of DoD Unified Capabilities Testing (UC APL) in a decent amount of time is already a challenge.  However, if you have Microsoft Windows workstations (Vista, 7, 8, etc) or Windows Servers (2008, 2008 R2, 2012, etc), then your validation, hardening and testing gets so much more complicated.  For the DoD, Windows security […]


Stopping Amplification DDoS Attacks – BCP38 Basics

The key to any secure network in stopping 100% of UDP-based DNS amplification DDoS attacks is simple: follow BCP38.  You ask, “but it’s 2014, and BCP38 came out in 2000, why bring it up?”  Well, simply not enough networks are following the Best Common Practice. Why I Bring Up BCP38 This last week saw the […]


Cisco OSPFv3 AF Authentication Fixed!

OSPFv3 AF Authentication is finally fixed! Unless you are a regular follower of this blog, you may not have heard that Cisco’s OSPFv3 with Address Families (AF) Authentication support was broken.  By broken I mean it took down OSPFv3 adjacencies.  Not good.  Read here for that article.  Anyway, I have been using the IOS-XE version […]


DNS: Back to Basics for Network Engineers

Speaking with quite a few network engineers in the last few months, I was shocked by the lack of real understanding of the Domain Naming System (DNS).  It shocked me because it is the singular application functionality that is entirely network-based.  Meaning that DNS is the foundation of the Internet, and from their perspective, should […]


Authentication for OSPFv3 Address Family support in IOS-XE? Think again

Bottom line up front: Cisco has a broken implementation of OSPFv3 authentication. This story begins like many do with network engineers trying to do their best in implementing IPv6 after a thorough and exhaustive engineering exercise.  Cisco’s Aggregation Services Router (ASR) routing platform running IOS-XE, starting with version 3.1.0 until the most recent  3.09.02 S, […]


The Urgency Behind IPv6

A couple of my buddies Shannon McFarland (Cisco) and Ed Horley (Groupware) did a great short video with Jeff Doyle (TCP/IP legend) on the urgency behind IPv6 in the service provider and the enterprise space.  Enjoy! [youtuber youtube=’http://www.youtube.com/watch?v=oq0RxI1p6zc’] Also located in Ed’s post here: http://www.howfunky.com/2013/07/enterprise-ipv6-video-with-jeff-doyle.html Check out Ed’s blog for some great IPv6 deployment tips […]


Yubikey and Windows Domain 2-Factor Authentication

Picking up where we left off last, I was showing you the awesome usefulness, security and affordability of Yubikey (Yubico’s 2-Factor authentication token) and using it for 2-factor authentication on network devices.  Well, I’d like to go another step forward: 2-Factor authentication for Windows computers to a Windows Active Directory environment.  If your enterprise deployment […]


Secure and Affordable 2-factor authentication: Yubikey

In the DoD there is a strong requirement for 2-factor authentication in the network.  For systems and workstations they use a successful implementation with Public Key Infrastructure (PKI) and a DoD common access card (CAC) which has a client certificate.  The user has a PIN; therefore, 2-factor.   Nothing like this exists for network devices (routers, […]