MAC Addresses showing up as both Static and Dynamic on interface

[Endy00000]

Hello,

I'm trying to figure out why Avaya Phones and PC's are showing up as both statically and dynamically learned. We do not have any mac addresses statically configured. 

Here is the output of a few ports.

Cisco9300# show mac address-table int Gi8/0/30
Mac Address Table
-------------------------------------------

Vlan Mac Address Type Ports
---- ----------- -------- -----
4023 7c57.581c.1302 STATIC Gi8/0/30
4023 8483.7189.60b2 STATIC Gi8/0/30
4033 8483.7189.60b2 DYNAMIC Gi8/0/30
---

Cisco9300# show mac address-table int Gi4/0/19
Mac Address Table
-------------------------------------------

Vlan Mac Address Type Ports
---- ----------- -------- -----
4023 3475.c7e9.9b46 STATIC Gi4/0/19
4023 f439.091b.f0cc STATIC Gi4/0/19
4033 3475.c7e9.9b46 DYNAMIC Gi4/0/19

---

Cisco9300# show run | inc mac
snmp-server enable traps mac-notification change move threshold
radius-server attribute 31 mac format ietf upper-case
radius-server attribute 31 send nas-port-detail mac-only
mac address-table notification change
--

[MHM Cisco World]

Do you run any port security?

MHM

[Endy00000]

Here is how our ports are configured.

Cisco9300#show run int gigabitEthernet 4/0/19
Building configuration...

Current configuration : 384 bytes
!
interface GigabitEthernet4/0/19
switchport access vlan 4023
switchport mode access
switchport nonegotiate
switchport voice vlan 4033
device-tracking attach-policy IPDT_POLICY
access-session port-control auto
mab
dot1x pae authenticator
spanning-tree portfast
spanning-tree bpduguard enable
spanning-tree guard root
service-policy type control subscriber ISE-POLICY
end

[MHM Cisco World]

Hi friend' 

I Was checking yesterday the static entry is add to MAC table for any endpoint success authc' 

You can see two entry for same MAC 

One dynamic and other static.

This can be bug or misconfig' so let me check my note and update you soon 

MHM