One IP Address Unable To Obtain Its MAC Address Across SNMP On The Same Network Segment Across Layer Three

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Issue Description

MAC acquisition across L3 network, users on the same network segment only have one IP address cannot obtain the MAC address.

Handling Process

By checking the configuration of MAC acquisition across L3 network, found that the MAC address corresponding to this IP is being excluded.

Root Cause

The MAC address exclusion list excludes the corresponding MAC address of the IP. As long as it exists in the exclusion list, it will not be displayed.

Solution

Remove the corresponding MAC address from the exclusion list and it will be displayed. This list just need to exclude the MAC address of the Layer 3 device.


Faisal Posted 18 Oct 2020 14:52
  
Thank you very much for the information ...
Faisal Posted 05 Nov 2020 08:14
  
Nice article ...
Faisal Posted 02 Dec 2020 12:23
  
Great Info
Ellechar Lv4Posted 11 Jan 2021 09:47
  
Very Nice Information
Faisal Posted 03 Mar 2021 09:16
  
Very informative …
Faisal Posted 21 May 2021 05:56
  
Nice guidance ...
JamilurRehman Lv1Posted 24 May 2021 17:36
  
Thanks for the information
faizansami Lv2Posted 19 Jan 2022 13:26
  
Very nice article!
Raza Islam Lv3Posted 17 Aug 2022 13:06
  
Very informative.

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Doc ID: 3961
Author: Sangfor_Brando
Updated: 2020-09-28 10:29
Version: