Update to Mitigate MS08-037 UDP Behavior Across NAT for Microsoft ISA Server 2006

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This update causes ISA Server to use random source ports for UDP sessions created by access rules which serve hosts in networks for which ISA Server defines a network address translation (NAT) relationship.
  • Version:


    File Name:


    Date Published:


    File Size:

    4.3 MB

      This update resolves the issue described in Microsoft Article 956910, DNS queries that are sent across a firewall do not use random source ports after you install security update 953230 (MS08-037). With this update, ISA Server allocates a large set of random UDP ports and then selects a port from this set for use in new UDP sessions.

      You can disable it programmatically (there is no user interface).
  • Supported Operating System

    Windows Server 2003

      • ISA Server 2006 Standard Edition with Service Pack 1
      • ISA Server 2006 Enterprise Edition with Service Pack 1
    • 1. Click the Download button on this page to start the download of a component.

      2. Do one of the following:
      • To start the installation immediately, click Run.
      • To save the download to your computer for installation at a later time, click Save.
      • To cancel the installation, click Cancel.
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