I have a campground network with a R201 router driving the system. In the Syslog I see the router offering certain IP address every few seconds or so to a certain MAC address. The MAC manufacturer search shows it to be Arris Group. In the DHCO Client List under LAN I can see this IP and MAC with an Expirres time of alway about 55 seconds but it never expires wheh I keep hitting refresh it jumps about to between 50 and 59 seconds. Same thing in the Status/LAN Host tab on the router. It shows it as Inactive with the same Expires time. This seems to be really keeping my router busy handing out that DHCP every few seconds all the time. I tried making that MAC use a static address but it still keeps talking to that MAC only with a different message that says found static lease: b70ba8c0 (which is not the MAC) and then in the next Syslog line it says Sending Offer of 192.168.11.183. This over and over every few seconds. I'm running 4.3.1-R1 on the router. This MAC and IP address do not show up on any of the APs I have in this network. Does anybody have any ideas on what is going on here? The MAC is 44-AA-F5-77-01-AD
We received your mail, we are analysing the syslogs and configs you shared. If needed will ask for a remote session.
In the mean time as a workaround, can you do the device configuration as done in the image attached, this should block the DHCP messages from/to the particular MAC. Please update whether it helps or not.
the log b70ba8c0 log that you are seeing is nothing but the IP address 192.168.11.183 (logged in reverse)
What makes you believe that it is actually degrading your routers performance ?
I am sharing screens from my setup, and things seem normal. My LAN client is having static IP while the wireless client (192.168.99.190) is on DHCP. Can you also help me with these screen shots from your setup. I feel what may be happening is that this particular client is not receiving/accepting the offer and it keeps sending the DHCP request.
I tried the Block DHCP to that MAC and it is still offering it. I have attached the syslog after I changed the setting and rebooted. Also screen shots of IP Port Filter Setting, DHCP Client List, LanHost List and LAN setting. I can't find any equipment at the site made by ARRIS. There are some set top boxes that work off of a different network and come out of a different port of a Calix Fiber Converterand are fed by UTP cable so I assume they are IPTV but the manufacturer isn't ARRIS.