From fe9892eabd817e794bfcc88098b2f8081ac7a924 Mon Sep 17 00:00:00 2001 From: Mike Silbersack Date: Thu, 22 Apr 2004 08:49:51 +0000 Subject: Document the net.inet.ip.portrange.randomized sysctl. --- share/man/man4/ip.4 | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/share/man/man4/ip.4 b/share/man/man4/ip.4 index 02030393e68e..b82e42171742 100644 --- a/share/man/man4/ip.4 +++ b/share/man/man4/ip.4 @@ -324,6 +324,13 @@ Changing these values departs from tradition and has security consequences that the administrator should carefully evaluate before modifying these settings. +.Pp +Ports are allocated at random within the specified port range in order +to increase the difficulty of random spoofing attacks. In scenarios +such as benchmarking, this behavior may be undesireable. In these +cases, +.Va net.inet.ip.portrange.randomized +can be used to toggle randomization off. .Ss "Multicast Options" .Pp .Tn IP -- cgit v1.2.3