07-10-2024 04:06 AM
I have a Core switch model number is C9300-48T.
Getting continuously a message ( 013619: *Jul 10 04:51:26.237: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12)
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013603: *Jul 10 04:40:03.588: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013604: *Jul 10 04:40:37.361: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013605: *Jul 10 04:41:07.899: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013606: *Jul 10 04:42:13.886: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013607: *Jul 10 04:42:47.108: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013608: *Jul 10 04:43:57.625: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013609: *Jul 10 04:44:29.837: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013610: *Jul 10 04:45:01.838: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013611: *Jul 10 04:45:32.301: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013612: *Jul 10 04:46:10.172: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013613: *Jul 10 04:46:41.931: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013614: *Jul 10 04:47:25.953: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013615: *Jul 10 04:48:18.035: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013616: *Jul 10 04:49:01.851: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013617: *Jul 10 04:50:02.198: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013618: *Jul 10 04:50:54.362: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013619: *Jul 10 04:51:26.237: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013620: *Jul 10 04:51:56.386: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013621: *Jul 10 04:52:38.442: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013622: *Jul 10 04:53:11.554: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013623: *Jul 10 04:54:22.676: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013624: *Jul 10 04:55:14.686: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013625: *Jul 10 04:55:45.477: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013626: *Jul 10 04:56:58.924: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013627: *Jul 10 04:57:50.931: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013628: *Jul 10 04:58:24.453: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013629: *Jul 10 04:59:35.157: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013630: *Jul 10 05:00:22.816: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
013631: *Jul 10 05:00:55.349: %ARP-4-NULL_SRC_MAC: NULL MAC address from 192.168.13.226 on Vl12
07-10-2024 05:08 AM
- Have a try with https://software.cisco.com/download/home/286313961/type/282046477/release/Dublin-17.12.3
and check if that can help ,
M.
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