• CCNA Vol 1
    • Vol 1 Part 1: Intro
      • All Content Part 1
      • Ch01: Intro to TCP/IP
      • Ch02: Intro to Ethernet
      • Ch03: Intro Routing, WAN
    • Vol 1 Part 2: Ethernet
      • All Content Part 2
      • Ch04: Command Line
      • Ch05: Ethernet Switching
      • Ch06: Switch Management
      • Ch07: Switch Interfaces
    • Vol 1 Part 3: VLANs, STP
      • All Content Part 3
      • Ch08: Virtual LANs
      • Ch09: Spanning Tree
      • Ch10: RSTP and EtherChannel
    • Vol 1 Pt 4: IP Addresses
      • All Content Part 4
      • Ch11: IPv4 Subnetting
      • Ch12: Classful IPv4 Networks
      • Ch13: IPv4 Subnet Masks
      • Ch14: Analyzing IPv4 Subnets
    • Vol 1 Part 5: IP Routing
      • All Content Part 5
      • Ch15: Operating Routers
      • Ch16: Router Addresses and Routes
      • Ch17: Routing in LANs
      • Ch18: Troubleshooting Routing
    • Vol 1 Part 6: OSPF
      • All Content Part 6
      • Ch19: OSPF Concepts
      • Ch20: OSPF Config
      • Ch21: OSPF Network Types
    • Vol 1 Part 7: IPv6
      • All Content Part 7
      • Ch22: IPv6 Fundamentals
      • Ch23: IPv6 Addressing
      • Ch24: Configure IPv6 Addressing
      • Ch25: Configure IPv6 Routing
    • Vol 1 Part 8: Wireless
      • All Content Part 8
      • Ch26: WLAN Fundamentals
      • Ch27: WLAN Architectures
      • Ch28: Securing WLANs
      • Ch29: Building WLANs
  • CCNA Vol 2
    • Vol 2 Part 1: IP ACLs
      • All Content Pt. 1
      • Ch01: TCP/IP Transport
      • Ch02: Standard ACLs
      • Ch03: Extended ACLs
    • Vol 2 Part 2: Security Services
      • All Content Pt. 2
      • Ch04: Security Arch.
      • Ch05: Securing Devices
      • Ch06: Port Security
      • Ch07: DHCP
      • Ch08: DHCP Snooping & DAI
    • Vol 2, Part 3: IP Services
      • All Content Pt. 3
      • Ch09: Device Management Protocols
      • Ch10: NAT
      • Ch11: QoS
      • Ch12: Miscellaneous IP Services
    • Vol 2 Part 4: Architectures
      • All Content Pt. 4
      • Ch13: LAN Architecture
      • Ch14: WAN Architecture
      • Ch15: Cloud Architecture
    • Vol 2 Part 5: Automation
      • All Content Pt. 5
      • Ch16: Controller-Based Networks
      • Ch17: Cisco SDA
      • Ch18: REST and JSON
      • Ch19: Ansible, Puppet, Chef
  • Labs
    • Config Labs, Volume 1
      • All Labs, Volume 1
      • Part 2 – Ethernet
      • Part 3 – VLAN, STP
      • Part 5 – IP Routing
      • Part 6 – OSPF
      • Part 7 – IPv6
    • Config Labs, Volume 2
      • All Labs, Volume 2
      • Part 1 – IP ACLs
      • Part 2 – Security
      • Part 3 – IP Services
    • Free Play Labs
      • All Labs, Volume 1
      • All Labs, Volume 2
  • Q&A
    • Q&A Set #1
    • IPv4 Address Drills
    • IPv4 Mask Drills
    • IPv4 Design Drills
    • IPv4 Network Analysis
    • IPv4 VLSM
    • IPv4-Adv Summary Routes
    • IPv6 Address Drills
    • OSPF Enabler
    • STP vs RSTP
    • STP Puzzle
  • General
    • Career
    • News
    • Study Tips
  • Reference
    • Config Labs
    • Free Play Labs for CCNA
    • Final Review
    Discussions to build real CCNA skills
    • CCNA Vol 1
      • Vol 1 Part 1: Intro
        • All Content Part 1
        • Ch01: Intro to TCP/IP
        • Ch02: Intro to Ethernet
        • Ch03: Intro Routing, WAN
      • Vol 1 Part 2: Ethernet
        • All Content Part 2
        • Ch04: Command Line
        • Ch05: Ethernet Switching
        • Ch06: Switch Management
        • Ch07: Switch Interfaces
      • Vol 1 Part 3: VLANs, STP
        • All Content Part 3
        • Ch08: Virtual LANs
        • Ch09: Spanning Tree
        • Ch10: RSTP and EtherChannel
      • Vol 1 Pt 4: IP Addresses
        • All Content Part 4
        • Ch11: IPv4 Subnetting
        • Ch12: Classful IPv4 Networks
        • Ch13: IPv4 Subnet Masks
        • Ch14: Analyzing IPv4 Subnets
      • Vol 1 Part 5: IP Routing
        • All Content Part 5
        • Ch15: Operating Routers
        • Ch16: Router Addresses and Routes
        • Ch17: Routing in LANs
        • Ch18: Troubleshooting Routing
      • Vol 1 Part 6: OSPF
        • All Content Part 6
        • Ch19: OSPF Concepts
        • Ch20: OSPF Config
        • Ch21: OSPF Network Types
      • Vol 1 Part 7: IPv6
        • All Content Part 7
        • Ch22: IPv6 Fundamentals
        • Ch23: IPv6 Addressing
        • Ch24: Configure IPv6 Addressing
        • Ch25: Configure IPv6 Routing
      • Vol 1 Part 8: Wireless
        • All Content Part 8
        • Ch26: WLAN Fundamentals
        • Ch27: WLAN Architectures
        • Ch28: Securing WLANs
        • Ch29: Building WLANs
    • CCNA Vol 2
      • Vol 2 Part 1: IP ACLs
        • All Content Pt. 1
        • Ch01: TCP/IP Transport
        • Ch02: Standard ACLs
        • Ch03: Extended ACLs
      • Vol 2 Part 2: Security Services
        • All Content Pt. 2
        • Ch04: Security Arch.
        • Ch05: Securing Devices
        • Ch06: Port Security
        • Ch07: DHCP
        • Ch08: DHCP Snooping & DAI
      • Vol 2, Part 3: IP Services
        • All Content Pt. 3
        • Ch09: Device Management Protocols
        • Ch10: NAT
        • Ch11: QoS
        • Ch12: Miscellaneous IP Services
      • Vol 2 Part 4: Architectures
        • All Content Pt. 4
        • Ch13: LAN Architecture
        • Ch14: WAN Architecture
        • Ch15: Cloud Architecture
      • Vol 2 Part 5: Automation
        • All Content Pt. 5
        • Ch16: Controller-Based Networks
        • Ch17: Cisco SDA
        • Ch18: REST and JSON
        • Ch19: Ansible, Puppet, Chef
    • Labs
      • Mega Widget 4
      • Config Labs, Volume 1
        • All Labs, Volume 1
        • Part 2 – Ethernet
        • Part 3 – VLAN, STP
        • Part 5 – IP Routing
        • Part 6 – OSPF
        • Part 7 – IPv6
      • Config Labs, Volume 2
        • All Labs, Volume 2
        • Part 1 – IP ACLs
        • Part 2 – Security
        • Part 3 – IP Services
      • Free Play Labs
        • All Labs, Volume 1
        • All Labs, Volume 2
    • Q&A
      • Q&A Set #1
      • IPv4 Address Drills
      • IPv4 Mask Drills
      • IPv4 Design Drills
      • IPv4 Network Analysis
      • IPv4 VLSM
      • IPv4-Adv Summary Routes
      • IPv6 Address Drills
      • OSPF Enabler
      • STP vs RSTP
      • STP Puzzle
    • General
      • Career
      • News
      • Study Tips
    • Reference
      • Config Labs
      • Free Play Labs for CCNA
      • Final Review
    EIGRP Enabler #3 – Answers
    By certskills
    In 200-301 V1 BBB Not in new books, OSPF Enabler
    Posted March 23, 2017

    EIGRP Enabler #3 – Answers

    EIGRP Enabler exercise 3 asked you to configure four routers, specifically to add the EIGRP network commands. If you’ve not seen these before, check out the Routing Protocol Enabler intro post. [...]

    READ MORE
    EIGRP Enabler #3
    By certskills
    In 200-301 V1 BBB Not in new books, OSPF Enabler
    Posted March 20, 2017

    EIGRP Enabler #3

    The goal is to get so good at your OSPF and EIGRP network commands that you get bored with all these exercises. There yet? If not, here’s another. As always with the EIGRP and OSPF Enabler [...]

    READ MORE
    CLI Vs API Twitter Chat
    By certskills
    In 200-301 V1 CCC No Category on Purpose
    Posted March 17, 2017

    CLI Vs API Twitter Chat

    The Cisco SE organization and Cisco DevNet are teaming up to hold a Cisco Chat about CLI and API. It has a catchy title: “Have APIs Killed the CLI?”. This blog post gives some short [...]

    READ MORE
    Troubleshooting Layer 2 Switching: Answers
    By certskills
    In 200-301 V1 Ch08: Virtual LANs, 200-301 V1 Part 3: VLANs, STP, CCENT-OLD, Q&A
    Posted March 9, 2017

    Troubleshooting Layer 2 Switching: Answers

    Can you think abstractly about how layer 2 switching works, and how VLANs and trunks impact their forwarding decisions? Or do you need to see the specific configurations to make sense of it? This [...]

    READ MORE
    Troubleshooting Layer 2 Switching
    By certskills
    In 200-301 V1 Ch08: Virtual LANs, 200-301 V1 Part 3: VLANs, STP, CCENT-OLD, Q&A
    Posted March 7, 2017

    Troubleshooting Layer 2 Switching

    Layer 2 switching seems easy – but then you must think through how it works in a real network. Applying the ideas proves whether you really understood the concepts or not. This next question [...]

    READ MORE
    OSPFv2 Enabler #3 – Answers
    By certskills
    In 200-301 V1 Ch20: OSPF Config, OSPF Enabler
    Posted March 6, 2017

    OSPFv2 Enabler #3 – Answers

    This latest OSPF Enabler exercise asked you to configure four routers in a three-area design. As usual, the exercise asks for different styles of OSPFv2 network commands, for no other reason than [...]

    READ MORE
    OSPFv2 Enabler #3
    By certskills
    In 200-301 V1 Ch20: OSPF Config, OSPF Enabler
    Posted March 2, 2017

    OSPFv2 Enabler #3

    In this latest OSPF Enabler exercise, you’ll configure a network of four routers with three areas. As always, the idea is simple: In one exercise, you’ll get to configure about 10 different [...]

    READ MORE
    EIGRP Enabler #2 – Answers
    By certskills
    In 200-301 V1 BBB Not in new books, OSPF Enabler
    Posted March 1, 2017

    EIGRP Enabler #2 – Answers

    This latest EIGRP Enabler exercise asked you to configure three routers, specifically to add the EIGRP network commands. This post lists the answers – simple enough.

    READ MORE
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