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Are these DHCP requests and responses OK

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here is a little of what i am referring to... 

Mon, 02 Nov 2020 20:21:39 received DISCOVER from b4:39:39:5d:a4:5d
Mon, 02 Nov 2020 20:21:40 sending OFFER to 255.255.255.255 with 192.168.1.108
Mon, 02 Nov 2020 20:21:40 received DISCOVER from b4:39:39:5d:a4:5d
Mon, 02 Nov 2020 20:21:40 sending OFFER to 255.255.255.255 with 192.168.1.108
Mon, 02 Nov 2020 20:21:40 received REQUEST from b4:39:39:5d:a4:5d
Mon, 02 Nov 2020 20:21:40 sending ACK to 192.168.1.108
Mon, 02 Nov 2020 21:55:57 received DISCOVER from b4:39:39:5d:a4:5d
Mon, 02 Nov 2020 21:55:57 sending OFFER to 255.255.255.255 with 192.168.1.108
Mon, 02 Nov 2020 21:55:57 received DISCOVER from b4:39:39:5d:a4:5d
Mon, 02 Nov 2020 21:55:58 received DISCOVER from b4:39:39:5d:a4:5d
Mon, 02 Nov 2020 21:55:58 received REQUEST from b4:39:39:5d:a4:5d
Mon, 02 Nov 2020 21:55:58 sending ACK to 192.168.1.108
Tue, 03 Nov 2020 07:46:40 received REQUEST from 3c:5c:c4:15:34:a4

is all this normal? is there anyway for me to verify that theses are all logs from devices in my home? AND PERHAPS MY ISP, LIKE, CENTURYLINK OR MEDIACOM?

TanyaLasagna's avatar
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TanyaLasagna
asked 2021-01-04 20:54:54 +0000
grahamb's avatar
23.8k
grahamb
updated 2021-01-04 21:01:19 +0000
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Standard DHCP requests and responses to and from devices on your local network. Nothing to be concerned about.

grahamb's avatar
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grahamb
answered 2021-01-04 21:00:39 +0000
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To answer your question a little more completely, you could track down the devices using those MAC addresses (hopefully shown in their UI somewhere) to make sure they should be on your network. The first 3 elements of the MAC address generally indicate the manufacturer of the device, and the Wireshark OUI lookup tool allows you to find that out: 

b4:39:39:5d:a4:5d - Shenzhen TINNO Mobile Technology Corp.
3c:5c:c4:15:34:a4 - Amazon Technologies Inc.
grahamb's avatar grahamb (2021-01-05 12:08:20 +0000) edit
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