Hi,
Have cppm 6.11.5 and 2930 switch firmware WC.16.11.13
Switch configured to use switch config device-fingerprints to upload dhcp,http and. lldp info to clearpass.
Usually this all work fine but sometimes we dont seem to get dhcp info.
e.g. Aruba 224 APs configured to use dhcp assigned Ip addresses ... sh dhcp-snoop bind shows the aps are getting an ip
clearpass endpoint info shows lldp info for the AP but no dhcp info hence. cnt categorise the device. fix here is to create custom fingerprint based upon mac oui=Aruba and lldp data matches the returned AP text string .... but would have expected dhcp info to be there.
e.g. multiple HP deskjet printers using dhcp on same switch, all using dhcp address assignment. All get an ip address. On 1 switch can see 3 deskjets with correct fingerprint but 2 additional ones have no dhcp fingerprint data ... Cant see anything wrong with switch config as we're getting. updates for lots of other things.
Tried a TAC case .... but they spent a log time trying to look for UDP forwarded data .. then. wanted packet capture data at cppm net interface but switch uses https to upload device fingerprint data to cppm (doesnt it?) so whats the point. of a packet capture.
Anyone else seen issues like this?
A