Understanding IPv6 Third Edition

Joseph Davies’ latest book Understanding IPv6: Your Essential Guide to IPv6 on Windows Networks is now available. Now in its third edition, this book is an excellent reference for systems administrators and network engineers wanting to learn the fundamentals of IPv6, and specifically how IPv6 is deployed on Microsoft networks. The book explains in detail the inner workings of the IPv6 protocol, including addressing, IPv6 headers, ICMPv6, and neighbor discover. In addition the book also covers IPv6 name resolution, routing, and transition technologies such as ISATAP, 6to4, Teredo, IP-HTTPS, DNS64, and NAT64. New in this addition is a chapter covering DirectAccess in Windows Server 2008 R2 and Windows Server 2012. Get your copy today!

Forefront TMG and UAG Presentation at TechEd North America 2012

For those of you who were not able to attend Microsoft TechEd North America 2012 this year, the session I presented entitled “Demystifying Microsoft Forefront Edge Security Solutions: TMG and UAG” is now available online. Enjoy!

Forefront TMG and UAG Presentation at TechEd North America 2012

Manage Out Fails for Non-ICMP Traffic with UAG DirectAccess

You may encounter a scenario in which the ability to manage out fails for DirectAccess clients using Forefront UAG 2010. You may also receive the following error:

4984 “An IPsec extended mode negotiation failed”

This can happen when custom security policies are applied to the DirectAccess client, specifically altering the settings for “Access this computer from the network“.

For more information regarding this error and how to resolve it, please refer to Microsoft Knowledge Base article 2663354.