2 IP Addresses With 1 MAC Address on WLAN
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Hello. I just added a security webcam to my WLAN. It works great. This new security webcam is on the same WLAN as a bunch of other of my security webcams. My WLAN network is configured for static at .127 and below and DHCP at .128 and above. I created a DHCP reservation without issue in DHCP Static Mappings in the WLAN tab. Interestingly though, when I look in the ARP Table, the webcam has the static IP that I've given it in DHCP Static Mappings of .30 and it has also picked up a DHCP IP address of .128. Screenshot below. I've looked in the following files to see if the entries are there and they are not:
/var/dhcpd/var/db/dhcpd.leases
/var/dhcpd/var/db/dhcpd.leases~
None of the other security webcams on the same network are having this type of issue, just this single security webcam. I've searched around and really can't find any definitive answers. I've checked the settings multiple times and there are no errors. Any idea on what could be occurring? Thank you.
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@newUser2pfSense you have an old cache, that would be expired by now 336 seconds
You created a static arp which is why that one shows up as permanent..
By time you read this that old entry should gone.
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@johnpoz Oooops. I should have mentioned. I hit the red Clear ARP Table button and it came back. Something is causing it to have 2 IP addresses for the same MAC. I can't find it.
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Ok. This is odd. The .128 finally did go away somehow. Completely odd. I'll keep an eye on it.
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@newUser2pfSense ok new theory to why it took so long.. You setup the reservation, and with a static arp setting.. So it created the arp entry.. But the client hadn't actually gotten the new lease yet with the .30 address.. It finally did.
Can you ping the 192.168.2.128 address?
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@johnpoz Wanted to follow up with you. Great theory and great to know for the future! Can't ping the .128. I didn't know what was going on and my system didn't like it. Now everything is humming along without issue. I appreciate your time.
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@newUser2pfSense glad you got it sorted.
