Nexus 7k GIves Arp request for his own Local ip Address Continuosuly

[safwan riyazudeen]

Hi All,

Please give ur inputs on these

Nexus Core switch 7K  Gives arp request for his own Local IP address continuously. This Logs keeps on coming for the past 2 months.

The Ip Address 10.80.18.1 is an secondary IP address of vlan 18 , which is used for Teleprescence. Please find the Interface Configs and Logs attached

interface Vlan18
  no shutdown
  no ip redirects
  ip address 10.80.18.252/24
  hsrp version 2
  hsrp 18
    preempt
    priority 110
    timers  1  3
    ip 10.80.18.1  secondary
    ip 10.80.18.254

2012 Nov 12 18:22:06 FRMA_BK1_CSN7K_01-COR %ARP-3-REQ_IP:  arp [3829]  Sending A

RP request for local IP address 10.80.18.1 on Vlan18, request from pid: 3834

2012 Nov 12 18:22:07 FRMA_BK1_CSN7K_01-COR %ARP-3-INVAL_HDR:  arp [3829]  Found

incorrect hardware/protocol type in ARP header: 6/2048

2012 Nov 12 18:22:53 FRMA_BK1_CSN7K_01-COR last message repeated 2 times

2012 Nov 12 18:22:06 FRMA_BK1_CSN7K_01-COR %ARP-3-REQ_IP:  arp [3829]  Sending A

RP request for local IP address 10.80.18.1 on Vlan18, request from pid: 3834

2012 Nov 12 18:22:07 FRMA_BK1_CSN7K_01-COR %ARP-3-INVAL_HDR:  arp [3829]  Found

incorrect hardware/protocol type in ARP header: 6/2048

2012 Nov 12 18:22:53 FRMA_BK1_CSN7K_01-COR last message repeated 2 times

[nkarpysh · Accepted solution]

Hello,

Please check your routing table and see if this ip address 10.80.18.1 is appearing in any static route as a next hop. That would be your problem.

Nik

[ahmad82pkn]

thanx. Resolved my issue too :D

[Florin Barhala]

Also helped me - middle of the night! 

Thanks!