Copyright (c) 1996-1999 Whistle Communications, Inc.
All rights reserved.
Subject to the following obligations and disclaimer of warranty, use and
redistribution of this software, in source or object code forms, with or
without modifications are expressly permitted by Whistle Communications;
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(The comments found at the beginning of the groff file "man4/ng_ether_echo.4freebsd".)
- netgraph ether_echo node type
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.
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
control message, or when all hooks have been disconnected.
sysctl Cm net.inet.tcp.syncookies
node type was implemented in
Fx 8.0 .
An Julian Elischer Aq Mt julian@FreeBSD.org