Cisco CCNP ENARSI Study Hub
Exam Code
300-410
Blueprint Items
52
Articles Live
34
Coverage
40% of blueprint covered
Layer 3 Technologies
1.1
Troubleshoot administrative distance (all routing protocols) — Administrative Distance
1.2
Troubleshoot route map for any routing protocol (attributes, tagging, filtering) — Route Maps
1.3
Troubleshoot loop prevention mechanisms (filtering, tagging, split horizon, route poisoning) — Loop Prevention
1.4
Troubleshoot redistribution between any routing protocols or routing sources — Redistribution
1.5
Troubleshoot manual and auto-summarization with any routing protocol — Summarization
1.6
Configure and verify policy-based routing — PBR
1.7
Configure and verify VRF-Lite — VRF-Lite
⌛ How to Configure VRF-Lite for Enterprise Networks
· Coming 26 July 2026
⌛ Verifying VRF-Lite Configuration: Common Techniques
· Coming 2 August 2026
⌛ Troubleshooting VRF-Lite: Common Issues and Solutions
· Coming 9 August 2026
1.8
Describe Bidirectional Forwarding Detection — BFD
Coming soon
1.9
Troubleshoot EIGRP (classic and named mode; VRF and global)
1.9.a
Address families (IPv4, IPv6) — EIGRP
1.9.b
Neighbor relationship and authentication — EIGRP
1.9.c
Loop-free path selections (RD, FD, FC, successor, feasible successor, stuck in active) — EIGRP
1.9.d
Stubs — EIGRP
Coming soon
1.9.e
Load balancing (equal and unequal cost) — EIGRP
Coming soon
1.9.f
Metrics — EIGRP
Coming soon
1.10
Troubleshoot OSPF (v2/v3)
1.10.a
Address families (IPv4, IPv6) — OSPF
1.10.b
Neighbor relationship and authentication — OSPF
1.10.c
Network types, area types, and router types — OSPF
1.10.c.i
Point-to-point, multipoint, broadcast, nonbroadcast — OSPF
1.10.c.ii
Area type: backbone, normal, transit, stub, NSSA, totally stub — OSPF
1.10.c.iii
Internal router, backbone router, ABR, ASBR — OSPF
Coming soon
1.10.c.iv
Virtual link — OSPF
Coming soon
1.10.d
Path preference — OSPF
Coming soon
1.11
Troubleshoot BGP (Internal and External; unicast and VRF-lite)
1.11.a
Address families (IPv4, IPv6) — BGP
1.11.b
Neighbor relationship and authentication (next-hop, multihop, 4-byte AS, private AS, route refresh, synchronization, operation, peer group, states and timers) — BGP
1.11.c
Path preference (attributes and best-path) — BGP
Coming soon
1.11.d
Route reflector (excluding multiple route reflectors, confederations, dynamic peer) — BGP
Coming soon
1.11.e
Policies (inbound/outbound filtering, path manipulation) — BGP
Coming soon
VPN Technologies
2.1
Describe MPLS operations (LSR, LDP, label switching, LSP) — MPLS
Coming soon
2.2
Describe MPLS Layer 3 VPN — MPLS L3VPN
Coming soon
2.3
Configure and verify DMVPN (single hub)
2.3.a
GRE/mGRE — DMVPN
2.3.b
NHRP — DMVPN
2.3.c
IPsec — DMVPN
Coming soon
2.3.d
Dynamic neighbor — DMVPN
Coming soon
2.3.e
Spoke-to-spoke — DMVPN
Coming soon
Infrastructure Security
3.1
Troubleshoot device security using IOS AAA (TACACS+, RADIUS, local database) — AAA
Coming soon
3.2
Troubleshoot router security features
⌛ Common Issues with Router Security Features and How to Solve Them
· Coming 16 August 2026
3.2.a
IPv4 access control lists (standard, extended, time-based) — ACLs
3.2.b
IPv6 traffic filter — IPv6 Security
3.2.c
Unicast reverse path forwarding (uRPF) — uRPF
3.3
Troubleshoot control plane policing (CoPP) (Telnet, SSH, HTTP(S), SNMP, EIGRP, OSPF, BGP) — CoPP
Coming soon
3.4
Describe IPv6 First Hop security features (RA guard, DHCP guard, binding table, ND inspection/snooping, source guard) — IPv6 FHS
Coming soon
Browse All Cisco CCNP ENARSI Articles
Last updated 19 July 2026