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Pascal Quantin's avatar
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Pascal Quantin
answered 2018-11-14 11:45:08 +0000

Hi,

you have several issues:

  • fist of all the MME should not send a PAP protocol id in the Attach Accept, it's only supposed to be sent by the UE and no authenticate-ack is required in LTE as far as I know
  • if I read RFC 1334 correctly, the authenticate_ack should have a msg-length field but it is not present, thus the malformed error