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Received ARP on VLAN No Path to Sender Messages

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TitleReceived ARP on VLAN No Path to Sender Messages
Symptoms
  • Jun 29 14:24:45 172.18.4.252 RtrArpProc[3]Received ARP on vlan 1818 but there is no path to the sender IP address: 192.168.73.1
  • <166>Jun 29 14:24:45 172.18.4.252 Last message repeated 1 time
  • <166>Jun 29 14:24:51 202.0.213.252 RtrArpProc[3]Received ARP on vlan 1818 but there is no path to the sender IP address: 0.0.0.0
Environment
S-Series
Cause
  • The message is being caused because  the router  is receiving an arp from a station that has a IP address that is not local to the vlan on which it is received.
  • Jun 29 14:24:45 172.18.4.252 RtrArpProc[3]Received ARP on vlan 1818 but there is no path to the sender IP address: 192.168.73.1
  • ARP received on VLAN 1818 from a station that has the IP 192.168.73.1 but because the vlan interface is 213.0.202.252. The router cannot reply because the router vlan interface and station are not on the same subnet.
Resolution
  • Fix the misconfigured station or change the logging level as shown below:
  • set logging application RtrArpProc level 1
Additional notes
For additional information on what station is sending the incorrect traffic - How To Debug ARP on S-Series,K-Series and 7100-Series

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