What for: use this command in the interface configuration to prohibit broadcast packet forwarded to network subnet which is different from source packet.
- Source: 22.214.171.124/24
- Destination: 126.96.36.199/24 → broadcast address
default: no ip directed-broadcast
R2 is doing ping to 188.8.131.52
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: