Windows server 2008 r2 dns netmask ordering




















One final thought, while netmask ordering is enabled by default, have you checked for certain that it is currently enabled, and hasn't been disabled previously by someone for some reason? Yes the DNS servers and default gateway are definitly the right one for location B and also for location A.

Furthermore both locations have a class C network with the subnet mask Office Office Exchange Server. Not an IT pro? Windows Server TechCenter.

Sign in. United States English. If the client is assigned a native class A address, the responses that are sent to the client are prioritized by entries that match the client class A network membership.

This is also true of native class B and native class C addresses. The round robin feature is used to randomize the results of a similar type of query to provide basic load-balancing functionality. In the earlier example, eight type A records with the same name and different IP addresses cause a different answer to be prioritized to the top with each query.

Because a new IP address is prioritized to the top with each query, clients aren't repeatedly routed to the same server. The initial release of Windows Server can't natively use the netmask ordering feature and the round robin feature at the same time. If the netmask ordering feature is turned on, the answers are always provided to the clients in the same order. In Windows Server , this behavior changed to permit the use of both the subnet-based netmask ordering feature and the round robin feature.

The use of both the netmask ordering feature and the round robin feature provides proximity awareness and load-balancing. In many current network environments, it's uncommon to have a subnet mask that is native to the actual address.

If there is overlap, or a short mask, then it reverts to round robin. If using the All other operating systems do. This post is provided AS-IS with no warranties or guarantees and confers no rights.

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