9. External References

9.1. PPTP

Microsoft Technet on PPTP <https://technet.microsoft.com/en-us/library/cc958045.aspx>

Wikipedia on PPTP <https://en.wikipedia.org/wiki/Point-to-Point_Tunneling_Protocol>

9.2. Sphinx

Official Sphinx Documentation <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