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Theking2
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Joined: Thu Aug 04, 2016 9:41 pm

Non stop arp broadcast for gw and dns

Sat Apr 04, 2020 11:37 am

my routerboard (RouterBOARD 962UiGS-5HacT2HnT) non stop sends "who has" requests for the gateway and dns ap adresses .The arp table however is correct.
The device is in bridge mode. I have a simple one segment LAN and acting (Internet) gateway is an EdgeRouter 4.

The requests are for the ip adresses of the gateway and dns which are on (a switch on) eth1. I wonder why the routerboard is broadcasting for exactly these two adresses only.
> ip arp export
# apr/04/2020 10:35:31 by RouterOS 6.46.4
# software id = K1W7-J7UU
#
# model = RouterBOARD 962UiGS-5HacT2HnT
# serial number = 673706xxxxxx
/ip arp
add address=192.168.111.2 interface=bridge mac-address=52:54:00:xx:xx:xx
add address=192.168.111.30 interface=bridge mac-address=FC:EC:DA:xx:xx:xx

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