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Table of Contents

FortiOS Carrier

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GTPv0

The original version of GTP (version 0) has the following differences from version GTPv1.

  • the tunnel identification is not random
  • there are options for transporting X.25
  • the fixed port number 3386 is used for all functions, not just charging
  • optionally TCP is allowed as a transport instead of UDP
  • not all message types are supported in version 0

GTPv0

The original version of GTP (version 0) has the following differences from version GTPv1.

  • the tunnel identification is not random
  • there are options for transporting X.25
  • the fixed port number 3386 is used for all functions, not just charging
  • optionally TCP is allowed as a transport instead of UDP
  • not all message types are supported in version 0