Curriculum topic
Routing
FullHow routers build and use a routing table, and how a route is chosen between competing candidates.
- lesson
- 14 lessons
- quiz
- 8 quizzes
- question
- 36 questions
- lab
- 41 labs
Taught, assessed and practised in a lab.
Why this matters
The largest area of both blueprints and of Subnetica's lab catalogue - reading a routing table is the core skill of the job.
Further reading
Technical guides
Learn
Modules covering this topic
14 lessons on this topic, sequenced inside these modules alongside their quizzes and labs.
- Diagnosis in practiceNetwork operations and design
- Dns in operationNetwork services
- Dynamic routingNetworking fundamentals
- Ipv4 addressingNetworking fundamentals
- Ipv6 addressingNetworking fundamentals
- Nat and aclsNetworking fundamentals
- Network basicsNetworking fundamentals
- Static routingNetworking fundamentals
- Switching and vlansNetworking fundamentals
- BgpRouting protocols
- Choosing a pathRouting protocols
- EigrpRouting protocols
- Knowing what is plugged inRouting protocols
- Ospf areas and faultsRouting protocols
- Ospf single areaRouting protocols
- Static routing at scaleRouting protocols
- Static routing faultsRouting protocols
- When the link is the problemRouting protocols
Practice
Hands-on labs
Real virtual networks with device consoles, graded automatically. Addressing is regenerated on every attempt.
- Egress Filter on the Records Server
- BGP Customer LAN Advertisement
- BGP: Two-Router eBGP Session
- Traffic Leaves by the Backup Circuit
- eBGP Session Up, No Routes
- BGP Transit Site Onboarding
- Branch DNS Service
- Slow, Not Broken
- DHCP Hands Out the Wrong Gateway
- EIGRP - Bring Up 2 Routers
- EIGRP - Fix R2 (3-Router Chain)
- EIGRP Multi-Path
- EIGRP Multi-Path #1
- Static Route Outranks OSPF
- Hub-and-Spoke Missing Routes
- iBGP Route Learned but Never Installed
- Inter-VLAN Routing
- Interface Administratively Down
- IPv6 Static Routing Across Three Sites
- The Patch Panel Labels Are Wrong
- Small Packets Fine, Large Packets Gone
- OSPF Area Mismatch on a New Link
- OSPF Default Route (2 Routers)
- OSPF Single-Area - Bring Up 2 Routers
- OSPF Stuck in ExStart
- OSPF Multi-Area #1
- OSPF Passive User LAN
- OSPF Single-Area
- NAT Overload (PAT) #4
- Selective Static Redistribution
- The Protocol That Loses Your Subnet Masks
- Shared-Segment Wrong Next-Hop
- Linux Router IP Forwarding
- Overbroad Summary Route Blackhole
- One Server, Wrong Exit Interface
- Static Routing - Full Mesh of 3 LANs
- The Route That Isn't There
- Static Routing
- Static Routing - Hub with 3 Branches
- Static Routing - Summarize 3 Branch LANs
- Wrong Default Gateway
Assess
Graded quizzes
36 graded questions across 8 quizzes, taken inside the modules above. Wrong answers explain the specific misconception behind the option you chose.
Review
Spaced repetition
Routing is tracked on the review ladder. Once you have answered a question on it, it comes back on a schedule that stretches as you keep getting it right - and resets if you don't. See your review queue.
Certification
Exam objectives this topic covers
- 1.1 Explain the role and function of network components
- 1.6 Configure and verify IPv4 addressing and subnetting
- 1.7 Describe private IPv4 addressing
- 1.8 Configure and verify IPv6 addressing and prefix
- 1.10 Verify IP parameters for Client OS
- 2.1 Configure and verify VLANs (normal range) spanning multiple switches
- 2.3 Configure and verify Layer 2 discovery protocols (CDP, LLDP)
- 3.1 Interpret the components of a routing table
- 3.2 Determine how a router makes a forwarding decision by default
- 3.3 Configure and verify IPv4 and IPv6 static routing
- 3.4 Configure and verify single area OSPFv2
- 3.5 Describe the purpose, functions, and concepts of first hop redundancy protocols
- 4.1 Configure and verify inside source NAT using static and pools
- 4.6 Configure and verify DHCP client and relay
- 1.2 Compare and contrast networking appliances, applications, and functions
- 1.7 Use appropriate IPv4 network addressing
- 2.1 Explain characteristics of routing technologies
- 2.2 Configure switching technologies and features
- 3.4 Given a scenario, implement IPv4 and IPv6 network services
- 5.3 Troubleshoot common issues with network services
- 5.4 Given a scenario, troubleshoot common performance issues
- 5.5 Troubleshoot and resolve general networking issues
- 5.5 Given a scenario, troubleshoot and resolve general networking issues