Anyone know what this DHCP Snooping error means? I have DHCP snooping configured on an access switch. The ports that are indicated in this error message are the uplink ports. Which are not blocked as our DHCP servers sit off the distribution layer of our network.
2009 Jan 09 11:47:02 est -05:00 %DHCPSNOOPING-5-PKTDROP:Packet dropped -- port 1/2 on vlan 728
2009 Jan 09 11:47:10 est -05:00 %DHCPSNOOPING-5-DESTNOTFOUND:DHCPOFFER: Could not find destination port. Destination MAC 52-41-53-20-30-63
I am not sure where that MAC address is coming from? Seems like a client requested DHCP, the DHCP Offer was initiated by DHCP server, however the switch does not have that MAC in it's CAM table.
Any thoughts? It does not appear that this message is pointing to an actual rogue DHCP server. Those packets would be blocked at the access ports and logged with the access port information.