What for: use this command in the interface configuration to prohibit broadcast packet forwarded to network subnet which is different from source packet.
- Source: 188.8.131.52/24
- Destination: 184.108.40.206/24 → broadcast address
default: no ip directed-broadcast
R2 is doing ping to 220.127.116.11
With R1 “debug ip packet” enabled:
- Without IP directed broadcast (by default), let see what happen in R1:
2. With IP directed broadcast (by default), let see what happen in R1: