WDM 4.8.5 TFTP issue

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  • #7084
    Avatardvpronet
    Member
    • Total Post: 1
    • Newbie

    Hi,

    I’m in trouble with the WDM TFTP.
    Imaging of V90L fails with PXE-T05 and PXE-E36.

    Scenario:

    WDM-Server


    PIX 535 FW


    PIX 535 FW


    Wyse V90L
    192.168.16.18


    192.168.16.1


    (VPN Tunnel)— 192.168.111.1


    DHCP (192.168.111.141)

    (DHCP Server on PIX 192.168.111.1)
    Opt 43: 59 46 b4 8e 72 62 18 fd 7c b1 59 36 78 32 08 d7
    Opt 60: „PXEClient“
    Opt 3: 192.168.111.1
    Opt 186: 192.168.16.18

    no ACLs.

    Trace Wireshark:

    361 23:56:12.995975 192.168.111.141 192.168.16.18 UDP 590 Source port: altserviceboot Destination port: altserviceboot
    362 23:56:13.000057 192.168.16.18 192.168.111.141 DHCP 332 DHCP ACK – Transaction ID 0x655edcca
    404 23:56:14.014995 192.168.111.141 192.168.16.18 TFTP 69 Read Request, File: pxelinux.0, Transfer type: octet, tsize00=000
    405 23:56:14.017500 192.168.16.18 192.168.111.141 TFTP 56 Option Acknowledgement, tsize00=1325200
    412 23:56:14.090523 192.168.111.141 192.168.16.18 TFTP 60 Error Code, Code: Not defined, Message: TFTP Aborted
    413 23:56:14.098080 192.168.111.141 192.168.16.18 TFTP 74 Read Request, File: pxelinux.0, Transfer type: octet, blksize00=145600
    414 23:56:14.134961 192.168.16.18 192.168.111.141 TFTP 57 Option Acknowledgement, blksize00=145600
    421 23:56:14.207955 192.168.111.141 192.168.16.18 TFTP 60 Acknowledgement, Block: 0
    422 23:56:14.208292 192.168.16.18 192.168.111.141 TFTP 1502 Data Packet, Block: 1
    1271 23:56:50.095854 192.168.111.141 192.168.16.18 TFTP 74 Acknowledgement, Block: 0
    1272 23:56:50.096942 192.168.16.18 192.168.111.141 TFTP 96 Error Code, Code: Unknown transfer ID, Message: unknown transfer id or transfer id already active

    The Server break down the connection after Block1 transfer cannot recieve the client.
    I think that the Packet-Size (1496 – with Header 1502 ) is too big for VPN.

    The same in a other Subnet with Cisco 4600 , Vlan-Routing, DHCP on the 4600 Vlan with the same DHCP Options is running without errors.

    I s there a option to channge / decrease the tftp Blocksize from the WDM TFTP Service ?

    Thanks

    #21704
    ConfGenConfGen
    Keymaster
    • Total Post: 11114
    • Jedi Master
    • ★★★★★★★

    Never done but try to start the TFTP32.exe on the WDM server and configure what you need to.

    CG

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