DHCP snooping statistics

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Apr 23rd, 2010
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Hi,

Does anyone know what is mean the field below :  Misdirected Packets                         


Switch#sh ip dhcp snooping statistics detail
Packets Processed by DHCP Snooping                    = 1212
Packets Dropped Because
   IDB not known                                        = 0
   Queue full                                               = 0
   Interface is in errdisabled                         = 0
   Rate limit exceeded                                = 0
   Received on untrusted ports                     = 0
   Nonzero giaddr                                        = 0
   Source mac not equal to chaddr               = 1
   No binding entry                                      = 0
   Insertion of opt82 fail                                = 0
   Unknown packet                                      = 0
   Interface Down                                         = 0
   Unknown output interface                          = 46
   Misdirected Packets                 = 50
   Packets with Invalid Size                           = 0
   Packets with Invalid Option                        = 0


Thanks in advance

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Nicholas Poole Wed, 06/16/2010 - 03:06
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Anybody got a correct answer on this as the only other pose was about CUBE which has nothing to do with DHCP SNOOPING?

fd_case17 Tue, 11/29/2011 - 13:28
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hello,

I'm searching for the same question .

Did you have some answers  about what these misdirected packets?

Thanx

Oscar Falcon Ortiz Fri, 02/08/2013 - 01:25
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Hello,


I've notice the same in my network. I think it is due to the broadcast dhcp packets entering your trusted upstream server interface, originated in others switches belonging to the same vlan and without dhcp snooping enabled. This fact makes dhcp packets being broadcasted to every port and thus reaching other switches. I think if you configure dhcp snooping for your vlan in every swtich, with only upstream interfaces as trusted, you shouldn't see misdirected dropped packets anymore. I hope to test this in a few days.


Regards.

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