IP DHCP snooping issue

[raut.pawan]

  Hi I am getting  DHCP snooping error on switch for Phone connected to 2960 switch. Also Phone is not getting IP address.

DHCP_SNOOPING-5-DHCP_SNOOPING_NONZERO_GIADDR: DHCP_SNOOPING drop message with non-zero giaddr or option82 value on untrusted port, message type: DHCPDECLINE, MAC sa: 34dc.fde5.2c40

[Haihua Rong]

Pawan,

Based on the error messages it looks like you have a mis-configuration. Looks like 
one of the trunks/ports does not have DHCP trust configured on it. Can you 
track mac address 34dc.fde5.2c40 to what port it's connected to and verify 
that it has DHCP trust enabled?. 

Haihua 

[Sandeep Choudhary]

HI Pawan,

Check this:

http://packetpushers.net/ccnp-studies-configuring-dhcp-snooping/

https://supportforums.cisco.com/thread/2169171

Regards

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