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ng_ether_echo — netgraph ether_echo node type
The ether_echo node type reflects all data and control messages back to
the sender. It assumes (and does not check) that the packet is an
ethernet frame, and swaps the source and destination addresses before
echoing it. This node type is used for testing and debugging.
A ether_echo node accepts any request to connect, regardless of the hook
name, as long as the name is unique.
This node type supports only the generic control messages. Any other
control messages are reflected back to the sender.
This node shuts down upon receipt of a NGM_SHUTDOWN control message, or
when all hooks have been disconnected.
netgraph(4), ng_hole(4), ng_echo(4), ng_ether(4), ngctl(8)
The ng_ether_echo node type was implemented in FreeBSD 8.0.
Julian Elischer ⟨julian@FreeBSD.org⟩