Bug #14516
closed
With Multiple static ARP MAC-IP pairing to the same IP address hosts in ARP TABLE showing wrong pairings
0%
Description
Hello fellow pfsense redmine community members,
I was researching just random items with MAC addresses and IP mappings. I have found a random bug here with my AP unit I have three MAC addresses being the RJ-45 connection, the Wi-Fi 2.4GHz, and the Wi-Fi 5GHz for researching I have added all the mac addresses into the firewall as static entries as some are on the Wifi-5GHz and others the 2.4GHz and the firewall is using the RJ-45. Keep in mind the firewall issues DHCP addresses the AP unit is in bridge mode and relays everything to the firewall. I have noticed a weird issue with the ARP table of the firewall it lists the wrong hostname that is mapped to that mac address.
It is a mapping mixup in the logs here with the multiple entries, should the system allow this?
MY concern is that it did not map to the correct hostname here. I do understand it only needs the RJ-45 on the firewall mapped however if the AP is in bridge mode and the firewall is set to only allow known devices with static assignments does this cause a concern?
Ref:
https://forum.netgate.com/topic/181077/ap-unit-has-multiple-mac-hardware-layer-2-addresses/
Files
| Screenshot 2023-06-27 at 3.41.20 PM.png (518 KB) Screenshot 2023-06-27 at 3.41.20 PM.png | MAC-IP pair hostname mix up in ARP table | ||
| Screenshot 2023-06-27 at 12.10.28 PM.png (1.86 MB) Screenshot 2023-06-27 at 12.10.28 PM.png | AP unit has multiple hardware addresses. | ||
| Screenshot 2023-06-27 at 9.51.52 PM.png (1.07 MB) Screenshot 2023-06-27 at 9.51.52 PM.png | Arp -a ran from host device showing correct hostname mapping during testing when mixup at firewall occured |
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