What does the "passive-interface " command do?

Routing

passive-interface <iface>

Send no Hellos out this interface (still advertises the subnet). Use on user-facing ports.

Works on: RouterMode: router

Run this command live

Don't just read it — type passive-interface <iface> in a real network simulator in your browser and watch it take effect. No install, no account needed to start.

Open the lab

Frequently asked

What does the "passive-interface <iface>" command do?

Send no Hellos out this interface (still advertises the subnet). Use on user-facing ports.

More Routing commands

ip route <network> <mask> <next-hop>ip route 0.0.0.0 0.0.0.0 <next-hop>router ospf <pid>network <ip> <wildcard> area <id>router-id <a.b.c.d>router eigrp <AS>router rip ip default-gateway <ip>

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