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| author | mdodd <mdodd@FreeBSD.org> | 2003-04-01 08:21:44 +0000 |
|---|---|---|
| committer | mdodd <mdodd@FreeBSD.org> | 2003-04-01 08:21:44 +0000 |
| commit | e72fdee732ab55fc784034c81ccedda4b5279816 (patch) | |
| tree | f90a5d7ffe2a0b6602c7942defa8707719f90a9c /sbin/ping/ping.8 | |
| parent | 0bafba46a2e8ee2d4fd220f149d08306f11d0f4d (diff) | |
| download | FreeBSD-src-e72fdee732ab55fc784034c81ccedda4b5279816.zip FreeBSD-src-e72fdee732ab55fc784034c81ccedda4b5279816.tar.gz | |
Implement support for RFC 3514 (The Security Flag in the IPv4 Header).
(See: ftp://ftp.rfc-editor.org/in-notes/rfc3514.txt)
This fulfills the host requirements for userland support by
way of the setsockopt() IP_EVIL_INTENT message.
There are three sysctl tunables provided to govern system behavior.
net.inet.ip.rfc3514:
Enables support for rfc3514. As this is an
Informational RFC and support is not yet widespread
this option is disabled by default.
net.inet.ip.hear_no_evil
If set the host will discard all received evil packets.
net.inet.ip.speak_no_evil
If set the host will discard all transmitted evil packets.
The IP statistics counter 'ips_evil' (available via 'netstat') provides
information on the number of 'evil' packets recieved.
For reference, the '-E' option to 'ping' has been provided to demonstrate
and test the implementation.
Diffstat (limited to 'sbin/ping/ping.8')
| -rw-r--r-- | sbin/ping/ping.8 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sbin/ping/ping.8 b/sbin/ping/ping.8 index 71fa31a..49223e4 100644 --- a/sbin/ping/ping.8 +++ b/sbin/ping/ping.8 @@ -42,7 +42,7 @@ packets to network hosts .Sh SYNOPSIS .Nm -.Op Fl AaDdfnoQqRrv +.Op Fl AaDdEfnoQqRrv .Op Fl c Ar count .Op Fl i Ar wait .Op Fl l Ar preload @@ -56,7 +56,7 @@ packets to network hosts .Op Fl z Ar tos .Ar host .Nm -.Op Fl AaDdfLnoQqRrv +.Op Fl AaDdEfLnoQqRrv .Op Fl c Ar count .Op Fl I Ar iface .Op Fl i Ar wait @@ -122,6 +122,8 @@ If this option is not specified, will operate until interrupted. .It Fl D Set the Don't Fragment bit. +.It Fl E +Set the EVIL bit. .It Fl d Set the .Dv SO_DEBUG |
