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authorVirgile Jarry <virgile@acceis.fr>2018-08-10 18:48:15 +0300
committerDavid S. Miller <davem@davemloft.net>2018-08-13 18:42:25 +0300
commite6f86b0f7ae473969a3301b74bf98af9e42ecd0e (patch)
treef0c50fdb5282bc53c95af075031b803ecf7e79bc /Documentation/networking/ip-sysctl.txt
parent8f78004442202b4ee28657513d78e6bb937e877c (diff)
downloadlinux-e6f86b0f7ae473969a3301b74bf98af9e42ecd0e.tar.xz
ipv6: Add icmp_echo_ignore_all support for ICMPv6
Preventing the kernel from responding to ICMP Echo Requests messages can be useful in several ways. The sysctl parameter 'icmp_echo_ignore_all' can be used to prevent the kernel from responding to IPv4 ICMP echo requests. For IPv6 pings, such a sysctl kernel parameter did not exist. Add the ability to prevent the kernel from responding to IPv6 ICMP echo requests through the use of the following sysctl parameter : /proc/sys/net/ipv6/icmp/echo_ignore_all. Update the documentation to reflect this change. Signed-off-by: Virgile Jarry <virgile@acceis.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking/ip-sysctl.txt')
-rw-r--r--Documentation/networking/ip-sysctl.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index e74515ecaa9c..8313a636dd53 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1882,6 +1882,11 @@ ratelimit - INTEGER
otherwise the minimal space between responses in milliseconds.
Default: 1000
+echo_ignore_all - BOOLEAN
+ If set non-zero, then the kernel will ignore all ICMP ECHO
+ requests sent to it over the IPv6 protocol.
+ Default: 0
+
xfrm6_gc_thresh - INTEGER
The threshold at which we will start garbage collecting for IPv6
destination cache entries. At twice this value the system will