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ARP request every second for same IP

How often should the Astaro be sending ARP requests? I have a network on eth06 with internet access and 3 computers connected via switch. Once to twice per second, the Astaro gateway is sending an ARP request:

2571	599.258422	Astaro_15:5e:5b	Broadcast	ARP	Who has 192.168.9.100?  Tell 192.168.9.1

But no one has that IP on my network. Is there a reason it is CONSTANTLY asking? Am I getting requests from the outside maybe that are looking for that PC?
By the way: This is on an ASG220 with v 7.501.

Thanks for your help.

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0 UrsWeiss over 15 years ago

Yes, seems that something (someone) wants to access 192.168.1.100 from another network and Astaro asks every time if the machine is somewhere around now.

If you have no idee where it comes from i would start a tcpdump on the firewall to find that out.
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0 Astaronator over 15 years ago in reply to UrsWeiss

I TCP dumped eth7 and got tons of the same ARP requests. Each simply says it's sender IP is my eth6 port of the Astaro.
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0 Astaronator over 15 years ago in reply to Astaronator

Ah I'm a n00b. I did have a pc with that IP address and there were existing legitimate requests going to it. Once I used a sterile machine and set it's IP to 192.168.9.100 I was able to see what port the traffic was coming in on. All good now.

Thanks!
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