Default gateway
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Certification Path Link New Cert Track CCNP Feb 2020 Link New Cert Track CCNA Feb 2020 Link New Re-certification Policy Link Cisco VIRL Packet Tracer Files
Discovery Labs
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General Files Packet Tracer
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Wireshark Files
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Course ResourcesExam Prep
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IP Addressing
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Useful LinksCisco IOS !6 releases Denali/Everest explained
NTP Vs PTP Link Are we going to run out of MAC addresses Link The convoluted output of "show ip dhcp binding" Show interface difference between Manual/NVRAM Link 2960 Cisco Switch LEDs Link Configuring VTP (V1 default V2 includes token ring & V3) link Changing the Default Vlan Link Stacking Switches StackWise (9/3750) Link HSRP Overview and Configuration Link Verify ACLs using the APIC-EM Path Trace ACL analysis tool OSPF Area Types Link Cisco OSPF Design Document Link Spanning Tree Diameter (default 7) Link Cisco IOS Traceroute (UDP) windows ICMP Link HSRP V1 and V2 Differences Link HSRP Gratuitous ARP Link HSRP FAQs Link PVST Setting the root primary looks at current value in BPDU's and set's it lower (secondary is a set value) Link A good PDF explanation of MPLS Link Good tutorial on the topic of PPPOE Link Tagging Native VLAN and show output confusion Link "show ip dhcp binding" Link explaining long hex addreses ICMP Types and output codes Link Cisco SLA (Service Level Agreement) Link MPLA and VPLS VPWS Link Cut-Thru and Store & Forward switching explained Show Interface output explained IPV4 to IPV6 Document Understanding 802.1q Tunneling GLBP Algorithm Etherchannel Configuration, individual ports and port channel "show ip eigrp neighbors" each column explained (h=handle) The cisco routing table explained NAT and NVI explained More on NVI Ethernet Cabling SDN & iWAN Link IPV6 Solicited Address Excellent example Link IPV6 Excellent Links IPV6 Another good multicast/solicitation Link TCP and UDP Small Servers Link Classroom White Board Files![]()
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Course ContentLegend Green = Lecture based Red = Self Study
Functions of NetworkingHistory of the Internet Link
Host to Host CommunicationsCiscco IOSCisco IOS !6 releases Denali/Everest explained
LANsMDI Vs MDIX and Auto Link
Ethernet Cabling Cat 1 thru to Cat 8 cable explained Link POE Delivered over unused pairs or Data pairs Link Multi Mode fibre and Single mode fibre Difference Link What are Glass Fibre cables made from Link The difference between GBICs and SFP Link Difference between LC and MT-RJ(SFF) Link RJ45 The difference bewteen T568B and T568A Link What is NEXT (Near-End Crosstalk) Link Link Layer (TCP/IP)Are we going to run out of MAC addresses Link
Show interface difference between Manual/NVRAM Link Show Interface output explained Starting a SwitchCut-Thru and Store & Forward switching explained
2960 Cisco Switch LEDs Link Configuring VTP (V1 default V2 includes token ring & V3) link Stacking Switches StackWise (9/3750) Link Internet Layer IP AddressingAnother On-Line Sub_net Calculator Link
On-Line subnet Calculator Link The convoluted output of "show ip dhcp binding" Seven Second Sub-netting Link Transport Layer TCP/UDPBrowser with multiple tabs each have unique source port Link
PSH and URG flags Packet Life Link URG Pointer in TCP link PSH and URG link RoutingCisco ISR 4331 Router Link
The cisco routing table explained Static Route Admin Distance and Metric explained Link Configure a RouterCisco USB Console Tips Link
Packet Delivery"show ip dhcp binding" Link explaining long hex addreses
Troubleshoot a Simple NetworkCisco IOS Traceroute (UDP) windows ICMP Link
ICMP Types and output codes Link Cisco SLA (Service Level Agreement) Link IPV6"ipv6 address autoconfig" good example Link
IP address allocation role of RIR (Regional Internet Registries) IPV6 Solicited Address Excellent example Link IPV6 Excellent Links IPV6 Another good multicast/solicitation Link IPV4 to IPV6 Document Classifying IPV6 Addreses Link Global Address Range 2000::/3 Link Static RoutingVLAN's and Trunk'sTagging Native Vlan Link
Changing the Default Vlan Link Tagging Native VLAN and show output confusion Link Understanding 802.1q Tunneling Multiple L3 subnets per VLAN Link Defaults on Switchport Trunk/Access Link1 Link2 Inter VLAN RoutingConfigure EtherChannel om a Router Video Link
OSPFSpanning TreeSpanning Tree Diameter (default 7) Link
PVST Setting the root primary looks at current value in BPDU's and set's it lower (secondary is a set value) Link EtherChannelEtherchannel Configuration, individual ports and port channel
Layer EtherChannel Configuration on Cisco Switch Link Configuring L2 switch port to L3 interface "no switchport" Layer 3 RedundancyHSRP Overview and Configuration Link
HSRP V1 and V2 Differences Link HSRP Gratuitous ARP Link HSRP FAQs Link GLBP Algorithm WANCheck the cost of WAN links link
SONET is not Dead Link MPLS Explained Link Intro to Carrier Network Architectures Link good PDF explanation of MPLS Link Good tutorial on the topic of PPPOE Link MPLS and VPLS VPWS Link Cable Modem Termination System (CMTS) Link How WiMAX works Link Division Wavelength Division Multiplexing (DWDM) Link ACL'sVerify ACLs using the APIC-EM Path Trace ACL analysis tool
NATQOSWireless FundamentalsWireless IEEE 802.11 Standard (Page 40) Link
UNII Vs ISM Bands 5 Ghz Link 802.11 Standards Link Wi-Fi Channel Frequencies 2.4 GHz/5GHz Link 2ndLink VirtualisationOffice 365, Azure (SaaS, PaaS, IaaS) Link
Good example of the difference SaaS/PaaS/IaaS link Virtualisation Link Link2 Containers App/OS Docker Link Intelligent NetworksSDN & iWAN Link
SOAP Vs REST (Envelope vs Postcard) Link SDN Vs Configuration Management Tools Link ACI (Data Centre 2014) Compared to DNA Link (2017) Link ACI APIC Link DNA APIC-EM Link Expect Scripting Link Custom Parsers Link Custom Parser Tool Link YANG pdf Link Cisco Prime Vs Cisco DNA Center Link Cisco Open SDN Controller Link Orchestration (Automated config/Man) Puppet etc Link Cisco SDN Link What is Cisco ACI (Application Centric Infrastructure) Link Cisco DNA Architecture Link Cisco DNA center Link Configuration Management Link YAML (yet another mark up language) :) The CLI is Dead Ansible-->NetCONF->YANG Link System MonitoringMIB Browser tool (Cisco download) Link
Managing Cisco DevicesCisco MIB Walker
Security Threat LandscapeAttacks around the World
Bronze Soldier attack Estonia,
Human rights attacks and China, HM Revenue & Customs lost accounts. Mafia Boy DOS attack Feb/2000. Anonymous attack against the Home Office. Stuxnet attacks against atomic plants in IRAN. Turkish Web site Hacking. Spamming 350 million and the result = 28 E,T, A are the most common English letters in order of frequency What is Phishing, redirection to malicious website, via email. Vishing is as Phishing except via Phone. Smishing is Phishing via SMS What is Pharming, redirection to malicious website unknown (DNS/HOSTs) Nimda Code Red 1999-2004, Conficker worm 2008, Stuxnet 2010, NHS Attack May 2017 WannaCry Link Threat Defense TechnolgiesDefault security levels "Inside" & "Outside"
ASAv VXLAN Interfaces (Layer 2 vlans extended over layer 3) ASAv vNICs (10/ASAv) FireSIGHT = Central Management FirePOWER = Real traffic analysis Exploit CGI script on Web Server PHF Obfuscation and Whisker attacks FireSIGHT Overview The Security Blogger Cisco FireSIGHT Management Centre Talos researchers create threat intelligence for Cisco products Talos Cisco AMP (Advanced Malware Protection) for Endpoints & Network AMP Endpoint Agent (Collector) Really good PDF from Cisco giving Overview of SourceFire/FireSIGHT Lab Minutes ASA FirePOWER Malware Detetction Lab Anyconnect Web Security Client Email Security Appliance (ESA) Web Security Appliance (WSA) Cloud Web Security (CWS) Data Loss Prevention (DLP) SenderBase Email and Web Repuation old name SensorBase Personally identifiable information (PII) AsyncOS for Web 8.0 User Guide AsyncOS for ESA 9.6 User Guide WSA User Guide PDF Search for "Decrypting HTTPS Traffic" Securing Administative AccessDevice Hardening |