ARP Flooding by the Router

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ARP Flooding by the Router

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ARP Flooding by the Router
ARP Flooding by the Router
2022-07-13 09:30:47
Tags: #Firmware Bug
Model: Archer C24  
Hardware Version: V1
Firmware Version: 1.4.3 Build 201022 Rel.55840n(5553)

Hello everyone.
I bought my C24 just 4-5 days back. It's working so-so.

My router is broadcasting ARP packets throughout the network. It's just constantly releasing ARP broadcast packets into my network
and asking for all the other devices' MAC addresses. 

I've used Wireshark tool on my laptop to detect this problem. This is creating a ARP Flood in my wifi Network. 

No other device is doing this because the Wireshark tool is clearly showing that the packet is being sourced from my Router's IP adderss 192.168.0.1

Below is the log from the Wireshark tool


7    1.244375    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.107? Tell 192.168.0.1
8    2.268297    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.102? Tell 192.168.0.1
9    2.268406    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.107? Tell 192.168.0.1
10    3.292275    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.102? Tell 192.168.0.1
11    3.292383    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.107? Tell 192.168.0.1
14    4.214297    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.102? Tell 192.168.0.1
33    13.225285    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
34    13.225405    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.108? Tell 192.168.0.1
35    13.225468    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.100? Tell 192.168.0.1
38    14.249080    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
39    14.249206    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.108? Tell 192.168.0.1
40    14.249291    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.100? Tell 192.168.0.1
42    15.273073    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
43    15.273183    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.108? Tell 192.168.0.1
76    19.266697    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.104? Tell 192.168.0.1
77    20.290616    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.104? Tell 192.168.0.1
79    21.212676    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.104? Tell 192.168.0.1
84    23.260274    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.111? Tell 192.168.0.1
86    24.284162    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.111? Tell 192.168.0.1
87    25.308239    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.111? Tell 192.168.0.1
88    26.229931    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.100? Tell 192.168.0.1
90    27.253784    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
91    27.253936    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.108? Tell 192.168.0.1
98    28.278282    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.108? Tell 192.168.0.1
105    29.302181    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.108? Tell 192.168.0.1
173    33.295525    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.107? Tell 192.168.0.1
182    34.217157    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.102? Tell 192.168.0.1
183    34.217286    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.107? Tell 192.168.0.1
202    35.241088    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.102? Tell 192.168.0.1
203    36.265029    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.102? Tell 192.168.0.1
212    38.210734    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.100? Tell 192.168.0.1
219    39.234647    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.100? Tell 192.168.0.1
220    40.258760    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.100? Tell 192.168.0.1
221    41.287137    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.108? Tell 192.168.0.1
230    45.276241    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.103? Tell 192.168.0.1
233    46.300388    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.103? Tell 192.168.0.1
234    46.300527    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.107? Tell 192.168.0.1
242    47.221876    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.103? Tell 192.168.0.1
243    47.221976    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.107? Tell 192.168.0.1
244    47.222033    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
284    48.245861    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.107? Tell 192.168.0.1
285    48.245984    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
289    49.269899    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
290    51.215438    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.104? Tell 192.168.0.1
298    52.239304    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.104? Tell 192.168.0.1
299    53.263647    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.104? Tell 192.168.0.1
300    53.263766    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.108? Tell 192.168.0.1
301    53.263827    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
304    54.287544    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.106? Tell 192.168.0.1
308    55.209023    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.111? Tell 192.168.0.1
312    56.233042    TP-Link_b1:30:90    Broadcast    ARP    42    Who has 192.168.0.111? Tell 192.168.0.1

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Re:ARP Flooding by the Router
2022-07-20 06:13:50

Hello @MuhammadIstiaq 

 

Thank you for posting on the TP-Link Community.

 

As per the part of the data you posted, it seems the router is inquiring about the local network for those clients connected to the network to renew their IP info, but I cannot know that for sure. Can you email us the data captured by Wireshark for further analysis? You can email support.forum@tp-link.com with the thread ID and subject.

 

If you could give us more details about the network devices, how are they connected to each other, and how many in total, that would be great.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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