ARP Ping

RouterOS General
14

Maybe it is not what it sounds like, but at least.
ARP Ping from 192.168.2.21 (MT) to 192.168.2.25 (MT connected via wifi-ether-switch-ether) … I see some things

  1. The 192.168.2.25 is NOT in the ARP list (it only appears when I do a regular ping, it is not triggered by an ARP Ping)
  2. My laptop on the same L2 networks, sees the ARP requests from 192.168.2.21 asking for the MAC of 192.168.2.25 , when the ARP PING is running
  3. Sometimes there is a regular ping to 192.168.2.24 (my laptop). The ARP answer is also send to the 192.168.2.24 from the 192.168.2.21 (my laptop is connected with winbox)
  4. If I check a device that is connected to ethernet interface or WLAN interface of 21, the time is zero or near zero. (23 is wifi connected). The MAC addresses are not in the ARP list.
    Klembord-2.jpg
    Klembord-4.jpg
    Klembord-3.jpg
    And to conclude. If The 192.168.2.25 is active in the ARP table , but removed (in this case rebooted), then the ARP ping goes in timeout instantly, while the entry is still in the ARP List
    So the ARP list is not used by ARP PING , is my deduction.

Klembord-5.jpg
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Consistent with Linux Arping after all. https://devconnected.com/arping-command-on-linux-explained/