Cisco 7706 HSRP %ARP-3-DUP_VADDR_SRC_IP.
Hi,
I have an interesting issue: (btw: I did find some simular bugs in the bugtoolkit, but none seem to fit with what I see).
system: version 7.2(2)D1(2)
The problem seem to be non impacting, as the customer does not get any complaints from users and the subnet seems to be working fine.,
So...
I have a dual N7706 setup with a total of 196 HSRP groups
The error message are seen and only seen on vlan2512.
2017-04-09 10:41:59.446, 10.2.252.47, local7.err, 2017 Apr 9 10:41:59.426 CEST: %ARP-3-DUP_VADDR_SRC_IP: arp [6317] Source address of packet received from 0000.0c9f.f9d0 on Vlan2512(port-channel7) is duplicate of local virtual ip, 192.168.70.1
017-04-08 06:55:23.718, 10.2.252.47, local7.err, 2017 Apr 8 06:55:23.679 CEST: %ARP-3-DUP_VADDR_SRC_IP: arp [6317] Source address of packet received from 0000.0c9f.f9d0 on Vlan2512(port-channel7) is duplicate of local virtual ip, 192.168.70.1
2017-04-07 14:32:54.992, 10.2.252.47, local7.err, 2017 Apr 7 14:32:54.976 CEST: %ARP-3-DUP_VADDR_SRC_IP: arp [6317] Source address of packet received from 0000.0c9f.f9d0 on Vlan2512(port-channel7) is duplicate of local virtual ip, 192.168.70.1
The messages are seen on port-channel7 which connects to a Checkpoint firewall, and on port-channel1 which is the VPC peer link
G 2512 0000.0c9f.f9d0 static - F F sup-eth1(R)
I have changed HSRP priority to get the other switch to become the active HSRP router, and as expected the symptoms move also.
Messages appear without a hsrp failover or state change:
2 state changes, last state change 6d18h
IP redundancy name is hsrp-Vlan2512-2512 (default)
Config:
Switch1
interface Vlan2512
description XXXX
no shutdown
vrf member VPN-22
no ip redirects
ip address 192.168.70.2/24
hsrp version 2
hsrp 2512
authentication md5 key-string XXXXX
preempt
priority 120
ip 192.168.70.1
Switch2
interface Vlan2512
vrf member VPN-22
no ip redirects
ip address 192.168.70.3/24
hsrp version 2
hsrp 2512
authentication md5 key-string XXXXX
preempt
priority 110
ip 192.168.70.1
description XXXXXXX
no shutdown
I removed the svi completely and rebuild the SVI, and the problem reappeared.
There is a small difference in the configuration as far as the sequence of configured items.. this shall be fixed soon, but it would be quite remarkable if this would be an issue.
Anybody out there seen this problem before?
