NG_ETHER_ECHO(4) FreeBSD Kernel Interfaces Manual NG_ETHER_ECHO(4)
NAME
ng_ether_echo - netgraph ether_echo node type
SYNOPSIS
#include <netgraph/ng_ether_echo.h>
DESCRIPTION
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.
HOOKS
A ether_echo node accepts any request to connect, regardless of the hook
name, as long as the name is unique.
CONTROL MESSAGES
This node type supports only the generic control messages. Any other
control messages are reflected back to the sender.
SHUTDOWN
This node shuts down upon receipt of a NGM_SHUTDOWN control message, or
when all hooks have been disconnected.
SEE ALSO
netgraph(4), ng_echo(4), ng_ether(4), ng_hole(4), ngctl(8)
HISTORY
The ng_ether_echo node type was implemented in FreeBSD 8.0.
AUTHORS
Julian Elischer <
[email protected]>
FreeBSD 14.1-RELEASE-p8 December 24, 2008 FreeBSD 14.1-RELEASE-p8