Document net.inet.ip.mtudisc and net.inet.ip.mtudisctimeout.
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.\" $NetBSD: sysctl.3,v 1.26 1998/04/30 21:32:47 thorpej Exp $
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.\" $NetBSD: sysctl.3,v 1.27 1998/04/30 21:42:53 thorpej Exp $
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.\"
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.\" Copyright (c) 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -489,8 +489,10 @@ The currently defined protocols and names are:
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.It ip directed-broadcast integer yes
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.It ip allowsrcrt integer yes
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.It ip subnetsarelocal integer yes
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.It ip mtudisc integer yes
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.It ip anonportmin integer yes
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.It ip anonportmax integer yes
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.It ip mtudisctimeout integer yes
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.It icmp maskrepl integer yes
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.It tcp rfc1323 integer yes
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.It tcp sendspace integer yes
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@ -535,6 +537,8 @@ Returns 1 if directed broadcast behavior is enabled for the host.
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Returns 1 if the host accepts source routed packets.
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.It Li ip.subnetsarelocal
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Returns 1 if subnets are to be considered local addresses.
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.It Li ip.mtudisc
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Returns 1 if Path MTU Discovery is enabled.
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.It Li ip.anonportmin
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The lowest port number to use for TCP and UDP ephemeral port allocation.
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This cannot be set to less that 1024 or greater than 65535.
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@ -543,6 +547,10 @@ The highest port number to use for TCP and UDP ephemeral port allocation.
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This cannot be set to less that 1024 or greater than 65535, and must
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be greater than
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.Li ip.anonportmin .
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.It Li ip.mtudisctimeout
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Returns the number of seconds in which a route added by the Path MTU
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Discovery engine will time out. When the route times out, the Path
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MTU Discovery engine will attempt to probe a larger path MTU.
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.It Li icmp.maskrepl
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Returns 1 if ICMP network mask requests are to be answered.
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.It Li tcp.rfc1323
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