Client not getting proper DHCP config lease.



  • Hello everybody. I've got a bit of problem here. There's this weird issue with either the clients or DHCP server is that the proper config dont get served.
    DHCP: 10.10.10.1/24
    However 2 out of 4 clients gets a 192.168.0.x IP. Network settings is set to automatic dhcp. DHCP lease is also not full... Any ideas with this???


  • LAYER 8

    probably another dhcp server running somewhere else,
    investigate others devices, router/modem, check with packet capture who is offering that network



  • There isn't though.

    bridge WAN > pfSense > Switch > AP / Client

    router on WAN is on bridge mode with dhcp turned off. That's the only device I could think of that offers DHCP.. There is a Windows Server, but there is also no DHCP services installed there.. Tried looking for where that 192.168.0.x network is but couldn't find it.


  • LAYER 8

    Diagnostics / Packet Capture
    interface LAN
    port 67 protocol UDP
    you should see who is offering that network

    Immagine.jpg



  • @kiokoman

    Well, since you have a captured packet, you can find out the MAC address of the source. You may want to download the capture and read it with Wireshark.


  • LAYER 8

    i'm not the one in trouble here,
    it was an example for @justice41
    or am i misunderstanding something?


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