02-16-2012 12:04 AM - edited 03-04-2019 03:17 PM
Hello,
I have enabled "ip device tracking" on my switches. However, I have a switch that doesn't show any info!! It works on all other switches.
What exactly does this output means;
NY-EF0.1-01# sh ip dev trac all
IP Device Tracking = Enabled
IP Device Tracking Probe Count = 3
IP Device Tracking Probe Interval = 30
---------------------------------------------------------------------
IP Address MAC Address Vlan Interface STATE
---------------------------------------------------------------------
172.17.20.166 5c26.0a4b.b179 320 GigabitEthernet2/0/47 INACTIVE
192.168.16.24 0021.703a.9316 666 GigabitEthernet1/0/19 ACTIVE
Total number interfaces enabled: 3
Enabled interfaces:
Gi1/0/3, Gi1/0/19, Gi2/0/47
The "Enabled interfaces" - I thought IP device tracking was enabled for all interfaces once the command "ip device tracking" was entered globally? The config on all ports are the same, still I only get device info from a few, and according to the switch it's only enabled on 3 interfaces;
switchport access vlan 320
switchport mode access
authentication control-direction in
authentication event fail action authorize vlan 666
authentication event server dead action authorize vlan 320
authentication event no-response action authorize vlan 666
authentication event server alive action reinitialize
authentication port-control auto
snmp trap mac-notification change added
snmp trap mac-notification change removed
dot1x pae authenticator
dot1x timeout quiet-period 20
dot1x timeout tx-period 10
storm-control broadcast level 5.00
storm-control multicast level 30.00
no cdp enable
no cdp tlv server-location
no cdp tlv app
spanning-tree portfast
spanning-tree bpduguard enable
spanning-tree guard root
What do to people?
02-23-2012 12:07 AM
Anybody?
09-10-2013 03:12 AM
In case you are still interested in this I have just run into this problem myself and may have stumbled on to the answer (at least for my case). Having entered on 'ip device tracking' on a C3750 the output of the 'show ip device tracking all' reports:
Total number of interfaces enabled: 0
After a bit of messing around enabling tracking on individual ports I changed to another switch and again entered the 'ip device tracking' this time the show command reports:
Total number of interfaces enabled: 1
Enabled interfaces:
Fa1/0/21
Comparing the interface configs the only difference on this port is 'dot1x port-control auto', adding this to command to port 20 and the show command no reports:
Total number of interfaces enabled: 2
Enabled interfaces:
Fa1/0/20, Fa1/0/21
Now off to read how ip device tracking and dot1x are inter-dependant.
03-11-2014 12:11 AM
Same issue here. I think that the issue could be the IOS running onm the device. Have to test further.
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