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Infoblox Field Alert - Windows XP SP3 issues with DHCP Option 43

当用户端 Windows XP 升级到 Service Pack 3 (SP3) 时,在处理 DHCP Option 43 时会有问题。这个问题应该是属於 Windows XP 的问题,对 Infoblox 不会造成任何不良影响。 DHCP Option 43 是 vendor-encapsulated-options,一般用户用到的机会应较少,如果你的 DHCP 设定中有用到 Option-43 就必须谨慎注意此问题。


Infoblox Support has discovered a problem with DHCP Option handling and Windows XP clients that have Service Pack 3 (SP3) installed. After installing SP3 on Windows XP, the client machine will not process any DHCP option in the ACK packet that follows option-43 data. This is a client side issue that presumably Microsoft is working on. The problem does not affect Infoblox alone, but can include VitalQIP users as well. Since this is a client problem, there are a limited set of actions you can take. What you can do to mitigate the problem: 1) Remove option-43 data from the DHCP server. This may not be possible as other devices may need this information. 2) By using filters (like option-60 filters), make sure you are only returning option-43 data for clients that really need it and not necessarily all clients. If you are using the Microsoft namespace, this option will not resolve the problem, so temporary removal of the option-43 data may be your only choice. Since the client dictates the order of options, only the client can dictate the order that the options are returned. A server will always return the options in the same order they were requested.