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External References
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.. _ext-ref-pptp:

PPTP
====

 |tn_el_pptp_title| <|tn_el_pptp_url|>

 |wk_el_pptp_title| <|wk_el_pptp_url|>


Sphinx
======
 |sphinx_docs_title|  <|sphinx_docs_url|>


.. |tn_el_pptp_title| replace:: Microsoft Technet on PPTP
.. |tn_el_pptp_url| replace:: https://technet.microsoft.com/en-us/library/cc958045.aspx

.. |wk_el_pptp_title| replace:: Wikipedia on PPTP
.. |wk_el_pptp_url| replace:: https://en.wikipedia.org/wiki/Point-to-Point_Tunneling_Protocol

.. |sphinx_docs_title| replace:: Official Sphinx Documentation
.. |sphinx_docs_url| replace:: http://www.sphinx-doc.org/en/stable/contents.html

.. [c1] ASA Packet Captures with CLI and ASDM Configuration Example

   (Cisco, August 18 2015)

   http://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/118097-configure-asa-00.html

.. [c2] Cisco Nexus 7000 Series NX-OS Security Configuration Guide, Release 4.1

   (Cisco, October 31 2013)

   http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/4_1/nx-os/security/configuration/guide/sec_nx-os-cfg/sec_rbac.html#wp1454261

.. [c3] CLI Book 1: Cisco ASA Series General Operations CLI Configuration Guide, 9.6

  (Cisco, May 16 2017)

  http://www.cisco.com/c/en/us/td/docs/security/asa/asa96/configuration/general/asa-96-general-config/intro-fw.html


.. [c4] Cisco Guide to Harden Cisco ASA Firewall

  (Cisco, February 2016)

  http://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/200150-Cisco-Guide-to-Harden-Cisco-ASA-Firewall.html

.. [c5] Cisco SAFE Reference Guide

  (cisco, December 10 2013)

  http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Security/SAFE_RG/SAFE_rg.html


.. [c6] Release 15.1SY Supervisor Engine 2T Software Configuration Guide - DAI

   (Cisco, August 15 2016)

   http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-1SY/config_guide/sup2T/15_1_sy_swcg_2T/dynamic_arp_inspection.html


.. [c7] Catalyst 4500 Series Switch Software Configuration Guide, Release IOS XE 3.3.0SG and IOS 15.1(1)SG

  (Cisco, Date unknown)

  http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/15-1/XE_330SG/configuration/guide/config/swmacsec.html


.. [c8] Release 15.1SY Supervisor Engine 2T Software Configuration Guide

  (Cisco, August 15 2016)

  http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-1SY/config_guide/sup2T/15_1_sy_swcg_2T/traffic_storm_control.html


.. [c9] Security Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3650 Switches)

   (Cisco, April 25 2017)

   http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3650/software/release/3se/security/configuration_guide/b_sec_3se_3650_cg/b_sec_3se_3650_cg_chapter_01101.html