%ARP-4-OWN_SRCMAC: arp [5549] Received packet with a local source MAC address (abcd.efgh.ighy) from x.x.x.x on Vlan31

[Kapil.patil]

Getting below error need your help to resolve this error

 %ARP-4-OWN_SRCMAC:  arp [5549]  Received packet with a local source MAC address (abcd.abcd.abcd) from x.x.x.x on Vlan42
 %ARP-4-OWN_SRCMAC:  arp [5549]  Received packet with a local source MAC address (abcd.abcd.abcd) from c.c.c.c on Vlan150
%ARP-4-OWN_SRCMAC:  arp [5549]  Received packet with a local source MAC address (abcd.abcd.abcd) from z.z.z.z  on Vlan13
%ARP-4-OWN_SRCMAC:  arp [5549]  Received packet with a local source MAC address (abcd.abcd.abcd) from b.b.b.b on Vlan31
%ARP-4-OWN_SRCMAC:  arp [5549]  Received packet with a local source MAC address (abcd.abcd.abcd) from c.c.c.c on Vlan351

Switch -1

interface port-channel100
  description "Connected to WAN RTR 1"
  switchport mode trunk
  switchport trunk allowed vlan 1--100
  spanning-tree port type edge
  vpc 100

interface Ethernet1/19
  description "to WAN RTR-1 Gig 0/1/0"
  switchport mode trunk
  switchport trunk allowed vlan 1-100
  channel-group 100 mode active

Switch -2

interface port-channel100
  description "Connected to WAN RTR 1"
  switchport mode trunk
  switchport trunk allowed vlan 1--100
  spanning-tree port type edge
  vpc 100

interface Ethernet1/19
  description "to WAN RTR-1 Gig 0/1/0"
  switchport mode trunk
  switchport trunk allowed vlan 1-100
  channel-group 100 mode active

[Mark Malone]

Reading the docs it states there maybe a miss configuration on the router

Error Message     ARP-4-OWN_SRCMAC Format: Received packet with a local source MAC 
address (%s) from %s on %s 

Explanation    There may be a connected router sending packets with local MAC address.

Recommended Action    Check all routers on the interface for a misconfiguration.

[Mahmoud El-Taher]

I have the same problem on my management interface Nexus K9

%ARP-4-OWN_SRCMAC:  arp [xxxx]  Received packet with a local source MAC address (xxxxxx) from 10.x.x.x on mgmt0

# sh run int mgmt0

!Command: show running-config interface mgmt0
!Time: Tue Dec 20 09:17:32 2016

version 6.1(2)I3(4)

interface mgmt0
  vrf member management
  no ip redirects
  ip address xxxxx/26
  no ip port-unreachable

Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (C) 2002-2015, Cisco and/or its affiliates.
All rights reserved.
The copyrights to certain works contained in this software are
owned by other third parties and used and distributed under their own
licenses, such as open source.  This software is provided "as is," and unless
otherwise stated, there is no warranty, express or implied, including but not
limited to warranties of merchantability and fitness for a particular purpose.
Certain components of this software are licensed under
the GNU General Public License (GPL) version 2.0 or
GNU General Public License (GPL) version 3.0  or the GNU
Lesser General Public License (LGPL) Version 2.1 or
Lesser General Public License (LGPL) Version 2.0.
A copy of each such license is available at
http://www.opensource.org/licenses/gpl-2.0.php and
http://opensource.org/licenses/gpl-3.0.html and
http://www.opensource.org/licenses/lgpl-2.1.php and
http://www.gnu.org/licenses/old-licenses/library.txt.

Software
  BIOS: version 07.17
  NXOS: version 6.1(2)I3(4)
  BIOS compile time:  09/10/2014
  NXOS image file is: bootflash:///n9000-dk9.6.1.2.I3.4.bin
  NXOS compile time:  3/18/2015 0:00:00 [03/18/2015 18:49:10]

Hardware
  cisco Nexus9000 C9396PX Chassis
  Intel(R) Core(TM) i3-3227U C with 16402540 kB of memory.
  Processor Board ID SAL1813NZ9Y

  Device name: XXXX
  bootflash:   21693714 kB
Kernel uptime is 600 day(s), 10 hour(s), 45 minute(s), 34 second(s)

Last reset
  Reason: Unknown
  System version: 6.1(2)I3(4)
  Service:

plugin
  Core Plugin, Ethernet Plugin

[Alaa Alkhdarat]

What is the device type , is it Nexus ? which code ?

[farrych]

Hi, did this issue fix, what was the root cause.

Thanks

[msc.networkadmins]

We have vPC setup between two Cisco Nexus 9504s.

We are also facing this same errors:

2019 Apr 23 17:36:50 NA-Co-Lo-DCSW-2 %ARP-4-OWN_SRCMAC: arp [14448] Received packet with a local source MAC address (cc46.d612.313f) from 10.59.8.3 on Vlan258
2019 Apr 23 17:37:00 NA-Co-Lo-DCSW-2 %ARP-4-SYSLOG_SL_MSG_WARNING: ARP-4-OWN_SRCMAC: message repeated 7 times in last 16 sec
2019 Apr 23 17:37:00 NA-Co-Lo-DCSW-2 %ARP-4-OWN_SRCMAC: arp [14448] Received packet with a local source MAC address (cc46.d612.313f) from 10.59.7.3 on Vlan257
2019 Apr 23 17:37:10 NA-Co-Lo-DCSW-2 %ARP-4-SYSLOG_SL_MSG_WARNING: ARP-4-OWN_SRCMAC: message repeated 2 times in last 10 sec
2019 Apr 23 17:37:22 NA-Co-Lo-DCSW-2 %ARP-4-OWN_SRCMAC: arp [14448] Received packet with a local source MAC address (cc46.d612.313f) from 10.59.8.3 on Vlan258
2019 Apr 23 17:37:49 NA-Co-Lo-DCSW-2 last message repeated 1 time
2019 Apr 23 17:37:49 NA-Co-Lo-DCSW-2 %ARP-4-OWN_SRCMAC: arp [14448] Received packet with a local source MAC address (cc46.d612.313f) from 172.16.1.3 on Vlan201

The Nexus switches are configured for HSRP and vPC for redundancy. we verified the SVI configuration which looks good.

Please help with a solution for this issue.

Regards,

Anand