Thank you for asking this question in the support community. Unfortunately, in your version of firmware the DHCP options are limited to 8 digit hex. In units that support newer firmware, this value has increased to 128 digit hex.
Please, do not hesitate to reply to this post with any additional information or questions. I will be happy to help in any way I can.
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I would recommend that you upgrade the firmware 13.15.00 then retest.
The value length is not listed as a fix however it is your best option
if you want to keep that version of Adtran on a NetVanta 1224R. There are a few
other options for you situation but I would suggest you test this first.
Engineer for Intuitive Technology Group
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