The PPTP IANA registration data is provided below :

(registered 2019-06-24, last updated 2019-06-24)

Resource Identifier (RI) Scheme name:




Scheme syntax:


Scheme semantics:

   To transmit an action, parameters, and arguments between Cisco 
   Packet Tracer and the Cisco CSR platform.

Encoding considerations:

   Unknown, use with care.

Applications/protocols that use this scheme name:

   Works only with Cisco Packet Tracer 7.2.2 (or newer) in 
   conjunction with the Cisco CSR platform.

Interoperability considerations:

   Unknown, use with care.

Security considerations:

   Unknown, use with care.


   Registering party: Tony Deng tdeng&, Tuan Hoang 
   tuhoang&, Bob Hinkle bohinkle&, Mark Chen 

   Scheme creator: Cisco

Author/Change controller:

   Either the registering party or someone who is verified to 
   represent the scheme creator.  See previous answer.



Fixed issues

Packet Tracer 7.2.2 fixes the following Packet Tracer 7.2 & 7.2.1 issues :

  • After having correctly configured the telephone switchboard in the router, the ip 7960 telephones do not work in the packet tracer 7.2 but work correctly in the PT 7.1


Known issues

Packet Tracer 7.2.2 might be affected by the following issues reported in Packet Tracer bug tracker :

  • Packet Tracer 7.2.2 might crash when erasing Cisco ASA 5506 firewall NVRAM