diff options
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/gen/sysctl.3 | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/lib/libc/gen/sysctl.3 b/lib/libc/gen/sysctl.3 index cb70656e8ad..457e540aa71 100644 --- a/lib/libc/gen/sysctl.3 +++ b/lib/libc/gen/sysctl.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: sysctl.3,v 1.64 2001/02/28 01:24:09 angelos Exp $ +.\" $OpenBSD: sysctl.3,v 1.65 2001/03/20 19:20:36 itojun Exp $ .\" .\" Copyright (c) 1993 .\" The Regents of the University of California. All rights reserved. @@ -997,6 +997,20 @@ local traffic. .It Li icmp6.nodeinfo The variable enables, or disables, kernel support for ICMPv6 node information query/reply. +If you set the variable to 0, the kernel will respond to no ICMPv6 node +information queries. +If non-zero, the kernel is permitted to respond to ICMPv6 node information +queries. +For security-sensitive query types, you can control the kernel behavior +by setting certain bits in the variable. +Turning the 2^0 bit +.Pq least significant bit, equals to 1 +will make the kernel respond to ICMPv6 FQDN queries +.Pq Li ping6 -w . +Turning the 2^1 bit +.Pq equals to 2 +will make the kernel respond to ICMPv6 node addresses queries +.Pq Li ping6 -a . .It Li icmp6.errppslimit The variable specifies the maximum number of outgoing ICMPv6 error messages, per second. |