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TheFirewallGuy

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Why is Kerio rejecting this DHCP Request with the following error:

[18/Aug/2015 15:23:51] {dhcp} DHCP server [Transaction ID 0x4AB3AA5C]: received wrong DHCPREQUEST from 00-12-34-56-78-90 (ciaddr != 0, REQUESTED_ADDRESS set)


The request packet sent (Captured with Wireshark):

Bootstrap Protocol (Request)
    Message type: Boot Request (1)
    Hardware type: Ethernet (0x01)
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0x4ab3ac5c
    Seconds elapsed: 10920
    Bootp flags: 0x8000 (Broadcast)
        1... .... .... .... = Broadcast flag: Broadcast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 10.10.10.112 (10.10.10.112)
    Your (client) IP address: 0.0.0.0 (0.0.0.0)
    Next server IP address: 0.0.0.0 (0.0.0.0)
    Relay agent IP address: 0.0.0.0 (0.0.0.0)
    Client MAC address: MyHardwa_56:78:90 (00:12:34:56:78:90)
    Client hardware address padding: 00000000000000000000
    Server host name not given
    Boot file name not given
    Magic cookie: DHCP
    Option: (53) DHCP Message Type (Request)
        Length: 1
        DHCP: Request (3)
    Option: (54) DHCP Server Identifier
        Length: 4
        DHCP Server Identifier: 10.10.10.1 (10.10.10.1)
    Option: (61) Client identifier
        Length: 7
        Hardware type: Ethernet (0x01)
        Client MAC address: MyHardwa_56:78:90 (00:12:34:56:78:90)
    Option: (12) Host Name
        Length: 13
        Host Name: MYHARDWARE-01
    Option: (50) Requested IP Address
        Length: 4
        Requested IP Address: 10.10.10.112 (10.10.10.112)
    Option: (55) Parameter Request List
        Length: 3
        Parameter Request List Item: (6) Domain Name Server
        Parameter Request List Item: (3) Router
        Parameter Request List Item: (1) Subnet Mask
    Option: (255) End
        Option End: 255
    Padding

[Updated on: Tue, 18 August 2015 21:30]

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