Disable Path MTU Discovery.
default FALSE
+min_pmtu - INTEGER
+ default 562 - minimum discovered Path MTU
+
+mtu_expires - INTEGER
+ Time, in seconds, that cached PMTU information is kept.
+
+min_adv_mss - INTEGER
+ The advertised MSS depends on the first hop route MTU, but will
+ never be lower than this setting.
+
IP Fragmentation:
ipfrag_high_thresh - INTEGER
conections.
Default: 7
+
+tcp_frto - BOOLEAN
+ Enables F-RTO, an enhanced recovery algorithm for TCP retransmission
+ timeouts. It is particularly beneficial in wireless environments
+ where packet loss is typically due to random radio interference
+ rather than intermediate router congestion.
+
+somaxconn - INTEGER
+ Limit of socket listen() backlog, known in userspace as SOMAXCONN.
+ Defaults to 128. See also tcp_max_syn_backlog for additional tuning
+ for TCP sockets.
+
+IP Variables:
+
ip_local_port_range - 2 INTEGERS
Defines the local port range that is used by TCP and UDP to
choose the local port. The first number is the first, the
The max value from conf/{all,interface}/arp_ignore is used
when ARP request is received on the {interface}
+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.
+
+disable_policy - BOOLEAN
+ Disable IPSEC policy (SPD) for this interface
+
+disable_xfrm - BOOLEAN
+ Disable IPSEC encryption on this interface, whatever the policy
+
+
+
tag - INTEGER
Allows you to write a number, which can be used as required.
Default value is 0.
disabled if local forwarding is enabled.
autoconf - BOOLEAN
- Configure link-local addresses using L2 hardware addresses.
+ Autoconfigure addresses using Prefix Information in Router
+ Advertisements.
- Default: TRUE
+ Functional default: enabled if accept_ra is enabled.
+ disabled if accept_ra is disabled.
dad_transmits - INTEGER
The amount of Duplicate Address Detection probes to send.
Default: 1
+UNDOCUMENTED:
+
+dev_weight FIXME
+discovery_slots FIXME
+discovery_timeout FIXME
+fast_poll_increase FIXME
+ip6_queue_maxlen FIXME
+lap_keepalive_time FIXME
+lo_cong FIXME
+max_baud_rate FIXME
+max_dgram_qlen FIXME
+max_noreply_time FIXME
+max_tx_data_size FIXME
+max_tx_window FIXME
+min_tx_turn_time FIXME
+mod_cong FIXME
+no_cong FIXME
+no_cong_thresh FIXME
+slot_timeout FIXME
+warn_noreply_time FIXME
+
$Id: ip-sysctl.txt,v 1.20 2001/12/13 09:00:18 davem Exp $