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Recommended Type: Patch

Wind River Linux 2.0 DHCP server echoes back Option 61

Released: May 18, 2009     Updated: May 18, 2009


When a DHCPDISCOVERr is sent with option 61 (client-ID), the Wind River  Linux 2.0 DHCP server will echo backthe same value in his DHCPOFFER. This will make the client to drop the offer, as per RFC 2131 table 3:
Option                    DHCPOFFER    DHCPACK            DHCPNAK
------                    ---------    -------            -------
Requested IP address      MUST NOT     MUST NOT           MUST NOT
IP address lease time     MUST         MUST (DHCPREQUEST) MUST NOT
                                       MUST NOT (DHCPINFORM)
Use 'file'/'sname' fields MAY          MAY                MUST NOT
DHCP message type         DHCPOFFER    DHCPACK            DHCPNAK
Parameter request list    MUST NOT     MUST NOT           MUST NOT
Message                   SHOULD       SHOULD             SHOULD
Client identifier         MUST NOT     MUST NOT           MAY  <=== offer MUST NOT contain it
Vendor class identifier   MAY          MAY                MAY
Server identifier         MUST         MUST               MUST
Maximum message size      MUST NOT     MUST NOT           MUST NOT
All others                MAY          MAY                MUST NOT

           Table 3:  Fields and options used by DHCP servers

Product Version

Linux Platforms 1.x


Installation Notes

Installation Notes is for 1.4 is for 1.5
1. Unzip the patch under [install_dir]/updates 
2. Install the patch CD by entering the patch CD directory and run setup_linux. 
3. This is a source only patch so you will have to build the kernel 
4. Issue a make fs and make the kernel in a configured directory. 
5. Upload the kernel and rootfs into the target and boot it up.

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