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Incomplete ARP entries

Posted: Tue Mar 27, 2018 11:53 pm
by markmcn
I'm running ROS6.41.3 and I'm seeing alot of incomplete arp entries
19 D brNetwork-Wlan
20 D brNetwork-Wlan
21 D brNetwork-Wlan
22 D brNetwork-Wlan
23 D brNetwork-Wlan
24 D brNetwork-Wlan
25 D brNetwork-Wlan
26 D brNetwork-Wlan
27 D brNetwork-Wlan
28 D brNetwork-Wlan
29 D brNetwork-Wlan
Given these IP addresses are not active on a host why would the router even have incomplete arp entries?
When I clear them they come back
Anyone got any thoughts

Re: Incomplete ARP entries

Posted: Wed Mar 28, 2018 6:50 pm
by solar77

try use arp reply only on the interface and set add arp to lease on your DHCP server. this way only devices that gets DHCP IP address is addd to the arp table. AKA, devices use static IP won't be able to connect.

Re: Incomplete ARP entries  [SOLVED]

Posted: Wed Mar 28, 2018 7:59 pm
by markmcn
Thanks Solar77
I was just concerned I might have misconfigured something. Once this is confirmed as the expected operation of the device I'm happy.