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Webcast-Catalyst9k
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Windows Vista and DHCP

Hello -

I know there is a goofy Vista "feature" where it will not interoperate with Cisco DHCP. Does anyone know if this is fixed in the Cisco DHCP server to accommodate Vista?

I can only find reference to Catalyst 500 series switches. Thanks!!

2 REPLIES
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Re: Windows Vista and DHCP

When you connect a Host that runs the Microsoft Windows Vista OS, you get an IP but no default gateway and thus are unable to communicate with the CE500 switch.

This issue occurs because of a difference in design between Windows Vista and Windows XP Service Pack 2 (SP2). Specifically, in Windows XP SP2, the BROADCAST flag in DHCP discovery packets is set to 0 (disabled). In Windows Vista, the BROADCAST flag in DHCP discovery packets is not disabled. Therefore, some non-Microsoft DHCP servers cannot process the DHCP discovery packets.

http://www.cisco.com/en/US/products/ps6545/products_tech_note09186a008073caa6.shtml

New Member

Re: Windows Vista and DHCP

Thanks for the reply! I had found that, but it is about the Catalyst 500 switches. What about IOS routers?

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