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DHCP Snooping

Discussion in 'Network Security' started by keconnect sparky, Jul 27, 2011.

  1. keconnect sparky

    keconnect sparky Nibble Poster

    Hey peeps,

    I totally get the concept of DHCP Snooping but im not sure if i am missing the point about trusted interfaces.

    My understanding is you need the interface(s) which have your DHCP server as trusted interfaces, not the ports that are connected to hosts as trusted.

    I get if you have an DHCP server than is relaying replies to upstream switches i would need to trust these links.

    Its just i set this feature on my lab at home and my xbox was unable to get DHCP'd an address till i trusted the port it was on (however i had been studying to some silly time in the morning and could of overlooked something since i was tired, but just wanted re-clarification) :blink

    So just to clarify trusted interfaces just need to be on the port(s) of the DHCP server and/or upstream links if using DHCP relaying (option 82)

    Tar peeps
    Certifications: MCP, CCENT, CCNA, CCNA-S

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