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Document net.inet.ip.process_options sysctl.

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Improved by:	ru
Reviewed by:	andre
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maxim 2004-07-02 15:47:47 +00:00
parent 14b36b7b44
commit 9739bce6b2
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15
share/man/man4/inet.4
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@ -273,6 +273,21 @@ adaptation described above.
.Pq ip.rtmaxcache
Integer: trigger level of cached, unreferenced, protocol-cloned routes
which initiates dynamic adaptation (default 128).
.It Va ip.process_options
Integer: control IP options processing.
By setting this variable to 0, all IP options in the incoming packets
will be ignored, and the packets will be passed unmodified.
By setting to 1, IP options in the incoming packets will be processed
accordingly.
By setting to 2, an
.Tn ICMP
.Dq "prohibited by filter"
message will be sent back in respose to incoming packets with IP options.
Default is 1.
This
.Xr sysctl 8
variable affects packets destined for a local host as well as packets
forwarded to some other host.
.El
.Sh SEE ALSO
.Xr ioctl 2 ,