StudyToCert

All certifications / FortiGate Admin / Lessons

Fortinet NSE 4 - FortiOS 7.6 Administrator NSE4_FGT_AD-7.6 · Domain 4: Routing

Link health monitors and blackhole routes

▶ Watch the overview video

Last reviewed September 25, 2026 · Leer en español

A static route on its own only disappears if its interface goes physically down; it stays in the table even when the path beyond the next hop is broken. Two features fix the gaps this creates: link health monitors detect a dead path and remove its route, and blackhole routes safely drop traffic that would otherwise leak to the wrong place. Both are staples of resilient FortiGate design and appear regularly on the exam.

Free account

Keep reading for free

Create a free StudyToCert account to read the rest of this lesson: 4 more sections, 4 key terms, a real-world example, an exam tip and self-check questions. Every lesson, lab and practice test is free with an account.

Sign up free Log in

Study FortiGate Admin for free
A week-by-week plan with every lesson, quizzes, checkpoint tests, a practice exam and hands-on labs.
Open the FortiGate Admin study plan