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| author | Andreas Roeseler <andreas.a.roeseler@gmail.com> | 2021-03-29 18:45:29 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-30 13:29:39 -0700 |
| commit | f1b8fa9fa5865c58c093cde6d782104c22df9088 (patch) | |
| tree | ef07fd170fd9cbc12478bf4dc4a28882054aaa45 /Documentation/networking | |
| parent | 750f4fc2a12f6632b5aa04526bf57fa06bfe8467 (diff) | |
net: add sysctl for enabling RFC 8335 PROBE messages
Section 8 of RFC 8335 specifies potential security concerns of
responding to PROBE requests, and states that nodes that support PROBE
functionality MUST be able to enable/disable responses and that
responses MUST be disabled by default
Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/ip-sysctl.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index c7952ac5bd2f..4130bce40765 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -1143,6 +1143,12 @@ icmp_echo_ignore_all - BOOLEAN Default: 0 +icmp_echo_enable_probe - BOOLEAN + If set to one, then the kernel will respond to RFC 8335 PROBE + requests sent to it. + + Default: 0 + icmp_echo_ignore_broadcasts - BOOLEAN If set non-zero, then the kernel will ignore all ICMP ECHO and TIMESTAMP requests sent to it via broadcast/multicast. |