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-rw-r--r--Documentation/networking/ip-sysctl.txt49
1 files changed, 48 insertions, 1 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 1b8c964b0d17..071fb18dc57c 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -388,6 +388,16 @@ tcp_mtu_probing - INTEGER
1 - Disabled by default, enabled when an ICMP black hole detected
2 - Always enabled, use initial MSS of tcp_base_mss.
+tcp_probe_interval - INTEGER
+ Controls how often to start TCP Packetization-Layer Path MTU
+ Discovery reprobe. The default is reprobing every 10 minutes as
+ per RFC4821.
+
+tcp_probe_threshold - INTEGER
+ Controls when TCP Packetization-Layer Path MTU Discovery probing
+ will stop in respect to the width of search range in bytes. Default
+ is 8 bytes.
+
tcp_no_metrics_save - BOOLEAN
By default, TCP saves various connection metrics in the route cache
when the connection closes, so that connections established in the
@@ -1116,11 +1126,23 @@ arp_accept - BOOLEAN
gratuitous arp frame, the arp table will be updated regardless
if this setting is on or off.
+mcast_solicit - INTEGER
+ The maximum number of multicast probes in INCOMPLETE state,
+ when the associated hardware address is unknown. Defaults
+ to 3.
+
+ucast_solicit - INTEGER
+ The maximum number of unicast probes in PROBE state, when
+ the hardware address is being reconfirmed. Defaults to 3.
app_solicit - INTEGER
The maximum number of probes to send to the user space ARP daemon
via netlink before dropping back to multicast probes (see
- mcast_solicit). Defaults to 0.
+ mcast_resolicit). Defaults to 0.
+
+mcast_resolicit - INTEGER
+ The maximum number of multicast probes after unicast and
+ app probes in PROBE state. Defaults to 0.
disable_policy - BOOLEAN
Disable IPSEC policy (SPD) for this interface
@@ -1198,6 +1220,17 @@ anycast_src_echo_reply - BOOLEAN
FALSE: disabled
Default: FALSE
+idgen_delay - INTEGER
+ Controls the delay in seconds after which time to retry
+ privacy stable address generation if a DAD conflict is
+ detected.
+ Default: 1 (as specified in RFC7217)
+
+idgen_retries - INTEGER
+ Controls the number of retries to generate a stable privacy
+ address if a DAD conflict is detected.
+ Default: 3 (as specified in RFC7217)
+
mld_qrv - INTEGER
Controls the MLD query robustness variable (see RFC3810 9.1).
Default: 2 (as specified by RFC3810 9.1)
@@ -1518,6 +1551,20 @@ use_optimistic - BOOLEAN
0: disabled (default)
1: enabled
+stable_secret - IPv6 address
+ This IPv6 address will be used as a secret to generate IPv6
+ addresses for link-local addresses and autoconfigured
+ ones. All addresses generated after setting this secret will
+ be stable privacy ones by default. This can be changed via the
+ addrgenmode ip-link. conf/default/stable_secret is used as the
+ secret for the namespace, the interface specific ones can
+ overwrite that. Writes to conf/all/stable_secret are refused.
+
+ It is recommended to generate this secret during installation
+ of a system and keep it stable after that.
+
+ By default the stable secret is unset.
+
icmp/*:
ratelimit - INTEGER
Limit the maximal rates for sending ICMPv6 packets.