While ENCOR gives you the broad architecture of enterprise networking, ENARSI takes you under the hood. Every routing protocol is pushed to its absolute limit so you can diagnose, troubleshoot, and resolve real-world production outages with confidence.
Practice directly in your browser with interactive CLI labs powered by our native IOS engine—no heavy software, no GNS3/EVE-NG setups, and zero downloads required.
Early Access — Live Today:
Advanced OSPF Architecture: Master stub, totally stubby, NSSA, and totally NSSA areas, plus virtual links and multi-method authentication.
BGP Hardening: Protect core peerings using TCP-MD5 authentication and optimized timer negotiations.
MPLS & Layer 3 VPNs: Decouple customer traffic across provider backbones using LDP, MP-BGP, and VRF design.
IPv6 First-Hop Security: Stop rogue infrastructure in its tracks with RA Guard, DHCPv6 Guard, ND Inspection, and Source Guard.
Fast Convergence & Path Verification: Sub-second failure detection via BFD and source validation using Strict/Loose uRPF.
Shipping Module by Module (Full v1.1 Blueprint): Route redistribution, Route Maps & PBR, Advanced EIGRP, DMVPN, VRF-Lite, AAA, ACLs & CoPP, SNMP/Syslog, DHCP, IP SLA, and NetFlow.
What Early Access Means for You:
Instant & Permanent Access: Every new module lands directly in your account as it ships, at no extra charge.
Zero-friction CLI Labs: Launch real IOS environments instantly from any modern web browser.
Student-Driven Development: Your direct feedback shapes our release sequence and practical lab scenarios.
Prerequisites: CCNA-level routing foundation recommended; completing ENCOR first is highly advised.

