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  • Blog Post: VLan nembership management defect in Brocade Turbo Iron 10Gig ToR switch

    As part of my automation solution I have created plugins to interact with network devices. While working with the Brocade Turbo Iron 10gig switch running version 04.2.00b. I found a defect in the way the switch does Vlan Management via SNMP. The issue : When adding a port to >1 vlans as tagged...
  • Blog Post: L2TPv3 performance tweaks for GeoCluster Live Migration

    L2TPv3 is a great feature for extending a Layer2 network across sites. This is very useful when you are using Live Migration with HyperV or when you want to pass traffic (at Layer 2) to a different location. See
  • Blog Post: DSL testing on campus Part 2 of 2 (the NEW way)

    This is part 2 of a 2 part post. Post two: The NEW way of doing DSL on campus About 2 years ago me and a co-worker were approached by 2 teams on campus that had a large number of DSL lines and did not want to pay the fee that Verizon charged. So I came up with the new way. **Brief info...
  • Blog Post: DSL testing on campus Part 1 of 2 (the old way)

    This is part 1 of a 2 part post. Post one: The OLD way of doing DSL on campus. So for the past few years I have been part of a team that provides DSL access to various test teams on campus. For a company like MSFT testing the "home scenario" is very important. So to do that test teams pulled...
  • Blog Post: Restricting which Certificate is allowed to authenticate a VPN connection

    So I had a requirement on a VPN server I was setting up not long ago. This requirement was that only a "smartcard logon" cert would be permitted for EAP access into my VPN server. The normal setup information (
  • Blog Post: Regular Expressions and IP addresses (ipv4 and IPv6)

    Over the last year or so I have been writing automation that uses IPv4 and IPv6 addresses. In the beginning I had to dig up and make some regular expressions for verifying that a given value was a valid IPv4 or IPv6 address. The ones I came up with are (in Const strIPv4Pattern as string = "\A...
  • Blog Post: Securing a TS connection with Smart Cards

    Well today is going to be a busy day here at the Microsoft Enterprise Engineering Center. At about 11:30 I am going to have lunch some of the RedvsBlue people ( ). Then I have the job of setting up and testing a remote access solution for a customer. Note that the steps below...
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