Preview Tool

Cisco Bug: CSCuo91792 - IPDT:Wired stale entries learned via ARP not clearing out

Last Modified

Apr 18, 2019

Products (1)

  • Cisco Catalyst 3850 Series Switches

Known Affected Releases


Description (partial)

Any wireless user who gets an ip address and is shown to have picked the ip address in DHCP server some times shows its state as "IPLEARN".

For the ip address which the Wireless client has picked up and as confirmed in the DHCP server , Issue the following commands and check if that is assigned to any other mac-address inside the IPDT table:
#show ip device tracking ip

  IP Address    MAC Address   Vlan  Interface           Probe-Timeout      State    Source
-----------------------------------------------------------------------------------------------    406c.8f55.f772 300  GigabitEthernet1/0/31  30              INACTIVE ARP
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.