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1 .. SPDX-License-Identifier: GPL-2.0
10 ip_forward - BOOLEAN
11 - 0 - disabled (default)
12 - not 0 - enabled
20 ip_default_ttl - INTEGER
25 ip_no_pmtu_disc - INTEGER
27 fragmentation-required ICMP is received, the PMTU to this
37 accept fragmentation-needed errors if the underlying protocol
47 Possible values: 0-3
51 min_pmtu - INTEGER
52 default 552 - minimum discovered Path MTU
54 ip_forward_use_pmtu - BOOLEAN
58 You only need to enable this if you have user-space software
67 - 0 - disabled
68 - 1 - enabled
70 fwmark_reflect - BOOLEAN
71 Controls the fwmark of kernel-generated IPv4 reply packets that are not
78 fib_multipath_use_neigh - BOOLEAN
88 - 0 - disabled
89 - 1 - enabled
91 fib_multipath_hash_policy - INTEGER
99 - 0 - Layer 3
100 - 1 - Layer 4
101 - 2 - Layer 3 or inner Layer 3 if present
103 fib_sync_mem - UNSIGNED INTEGER
109 ip_forward_update_priority - INTEGER
112 according to an rt_tos2priority table (see e.g. man tc-prio).
118 - 0 - Do not update priority.
119 - 1 - Update priority.
121 route/max_size - INTEGER
128 neigh/default/gc_thresh1 - INTEGER
134 neigh/default/gc_thresh2 - INTEGER
141 neigh/default/gc_thresh3 - INTEGER
142 Maximum number of non-PERMANENT neighbor entries allowed. Increase
144 with large numbers of directly-connected peers.
148 neigh/default/unres_qlen_bytes - INTEGER
161 neigh/default/unres_qlen - INTEGER
174 mtu_expires - INTEGER
177 min_adv_mss - INTEGER
183 ipfrag_high_thresh - LONG INTEGER
186 ipfrag_low_thresh - LONG INTEGER
187 (Obsolete since linux-4.17)
192 ipfrag_time - INTEGER
195 ipfrag_max_dist - INTEGER
196 ipfrag_max_dist is a non-negative integer value which defines the
203 is done on fragments before they are added to a reassembly queue - if
221 inet_peer_threshold - INTEGER
224 entries' time-to-live and time intervals between garbage collection
225 passes. More entries, less time-to-live, less GC interval.
227 inet_peer_minttl - INTEGER
228 Minimum time-to-live of entries. Should be enough to cover fragment
229 time-to-live on the reassembling side. This minimum time-to-live is
233 inet_peer_maxttl - INTEGER
234 Maximum time-to-live of entries. Unused entries will expire after
242 somaxconn - INTEGER
244 Defaults to 4096. (Was 128 before linux-5.4)
247 tcp_abort_on_overflow - BOOLEAN
255 tcp_adv_win_scale - INTEGER
257 (if tcp_adv_win_scale > 0) or bytes-bytes/2^(-tcp_adv_win_scale),
260 Possible values are [-31, 31], inclusive.
264 tcp_allowed_congestion_control - STRING
265 Show/set the congestion control choices available to non-privileged
271 tcp_app_win - INTEGER
279 tcp_autocorking - BOOLEAN
280 Enable TCP auto corking :
290 tcp_available_congestion_control - STRING
295 tcp_base_mss - INTEGER
300 tcp_mtu_probe_floor - INTEGER
306 tcp_min_snd_mss - INTEGER
315 tcp_congestion_control - STRING
325 tcp_dsack - BOOLEAN
328 tcp_early_retrans - INTEGER
330 losses into fast recovery (draft-ietf-tcpm-rack). Note that
335 - 0 disables TLP
336 - 3 or 4 enables TLP
340 tcp_ecn - INTEGER
359 tcp_ecn_fallback - BOOLEAN
361 back to non-ECN. Currently, this knob implements the fallback
363 additional detection mechanisms could be implemented under this
369 tcp_fack - BOOLEAN
372 tcp_fin_timeout - INTEGER
376 valid "receive only" state for an un-orphaned connection, an
384 tcp_frto - INTEGER
385 Enables Forward RTO-Recovery (F-RTO) defined in RFC5682.
386 F-RTO is an enhanced recovery algorithm for TCP retransmission
388 RTT fluctuates (e.g., wireless). F-RTO is sender-side only
391 By default it's enabled with a non-zero value. 0 disables F-RTO.
393 tcp_fwmark_accept - BOOLEAN
404 tcp_invalid_ratelimit - INTEGER
409 (a) out-of-window sequence number,
410 (b) out-of-window acknowledgment number, or
414 a buggy or malicious middlebox or man-in-the-middle can
420 Using 0 disables rate-limiting of dupacks in response to
426 tcp_keepalive_time - INTEGER
430 tcp_keepalive_probes - INTEGER
434 tcp_keepalive_intvl - INTEGER
440 tcp_l3mdev_accept - BOOLEAN
450 tcp_low_latency - BOOLEAN
453 tcp_max_orphans - INTEGER
465 tcp_max_syn_backlog - INTEGER
469 This is a per-listener limit.
479 tcp_max_tw_buckets - INTEGER
481 If this number is exceeded time-wait socket is immediately destroyed
487 tcp_mem - vector of 3 INTEGERs: min, pressure, max
501 tcp_min_rtt_wlen - INTEGER
508 Possible values: 0 - 86400 (1 day)
512 tcp_moderate_rcvbuf - BOOLEAN
513 If set, TCP performs receive buffer auto-tuning, attempting to
518 tcp_mtu_probing - INTEGER
519 Controls TCP Packetization-Layer Path MTU Discovery. Takes three
522 - 0 - Disabled
523 - 1 - Disabled by default, enabled when an ICMP black hole detected
524 - 2 - Always enabled, use initial MSS of tcp_base_mss.
526 tcp_probe_interval - UNSIGNED INTEGER
527 Controls how often to start TCP Packetization-Layer Path MTU
531 tcp_probe_threshold - INTEGER
532 Controls when TCP Packetization-Layer Path MTU Discovery probing
536 tcp_no_metrics_save - BOOLEAN
544 tcp_no_ssthresh_metrics_save - BOOLEAN
549 tcp_orphan_retries - INTEGER
560 tcp_recovery - INTEGER
565 RACK: 0x1 enables the RACK loss detection for fast detection of lost
576 tcp_reordering - INTEGER
583 tcp_max_reordering - INTEGER
590 tcp_retrans_collapse - BOOLEAN
591 Bug-to-bug compatibility with some broken printers.
595 tcp_retries1 - INTEGER
604 tcp_retries2 - INTEGER
619 tcp_rfc1337 - BOOLEAN
626 tcp_rmem - vector of 3 INTEGERs: min, default, max
645 tcp_sack - BOOLEAN
648 tcp_comp_sack_delay_ns - LONG INTEGER
655 tcp_comp_sack_slack_ns - LONG INTEGER
663 tcp_comp_sack_nr - INTEGER
669 tcp_slow_start_after_idle - BOOLEAN
677 tcp_stdurg - BOOLEAN
684 tcp_synack_retries - INTEGER
691 tcp_syncookies - INTEGER
716 tcp_fastopen - INTEGER
727 the option value being the length of the syn-data backlog.
735 application before 3-way handshake finishes.
738 0x200 (server) accept data-in-SYN w/o any cookie option present.
748 tcp_fastopen_blackhole_timeout_sec - INTEGER
752 get detected right after Fastopen is re-enabled and will reset to
754 0 to disable the blackhole detection.
758 tcp_fastopen_key - list of comma separated 32-digit hexadecimal INTEGERs
769 per-socket keys will be used instead of any keys that are specified via
772 A key is specified as 4 8-digit hexadecimal integers which are separated
773 by a '-' as: xxxxxxxx-xxxxxxxx-xxxxxxxx-xxxxxxxx. Leading zeros may be
778 tcp_syn_retries - INTEGER
785 tcp_timestamps - INTEGER
788 - 0: Disabled.
789 - 1: Enable timestamps as defined in RFC1323 and use random offset for
791 - 2: Like 1, but without random offsets.
795 tcp_min_tso_segs - INTEGER
798 Since linux-3.12, TCP does an automatic sizing of TSO frames,
806 tcp_pacing_ss_ratio - INTEGER
807 sk->sk_pacing_rate is set by TCP stack using a ratio applied
815 tcp_pacing_ca_ratio - INTEGER
816 sk->sk_pacing_rate is set by TCP stack using a ratio applied
823 tcp_tso_win_divisor - INTEGER
831 tcp_tw_reuse - INTEGER
832 Enable reuse of TIME-WAIT sockets for new connections when it is
835 - 0 - disable
836 - 1 - global enable
837 - 2 - enable for loopback traffic only
844 tcp_window_scaling - BOOLEAN
847 tcp_wmem - vector of 3 INTEGERs: min, default, max
868 tcp_notsent_lowat - UNSIGNED INTEGER
881 tcp_workaround_signed_windows - BOOLEAN
889 tcp_thin_linear_timeouts - BOOLEAN
896 non-aggressive thin streams, often found to be time-dependent.
898 Documentation/networking/tcp-thin.rst
902 tcp_limit_output_bytes - INTEGER
914 tcp_challenge_ack_limit - INTEGER
916 in RFC 5961 (Improving TCP's Robustness to Blind In-Window Attacks)
919 tcp_rx_skb_cache - BOOLEAN
930 udp_l3mdev_accept - BOOLEAN
939 udp_mem - vector of 3 INTEGERs: min, pressure, max
952 udp_rmem_min - INTEGER
959 udp_wmem_min - INTEGER
969 raw_l3mdev_accept - BOOLEAN
981 cipso_cache_enable - BOOLEAN
990 cipso_cache_bucket_size - INTEGER
1000 cipso_rbm_optfmt - BOOLEAN
1004 categories in order to make the packet data 32-bit aligned.
1008 cipso_rbm_structvalid - BOOLEAN
1021 ip_local_port_range - 2 INTEGERS
1030 ip_local_reserved_ports - list of comma separated ranges
1031 Specify the ports which are reserved for known third-party
1037 list of ranges (e.g. "1,2-4,10-10" for ports 1, 2, 3, 4 and
1061 ip_unprivileged_port_start - INTEGER
1062 This is a per-namespace sysctl. It defines the first
1070 ip_nonlocal_bind - BOOLEAN
1071 If set, allows processes to bind() to non-local IP addresses,
1072 which can be quite useful - but may break some applications.
1076 ip_autobind_reuse - BOOLEAN
1085 ip_dynaddr - INTEGER
1086 If set non-zero, enables support for dynamic addresses.
1087 If set to a non-zero value larger than 1, a kernel log
1093 ip_early_demux - BOOLEAN
1103 ping_group_range - 2 INTEGERS
1110 tcp_early_demux - BOOLEAN
1115 udp_early_demux - BOOLEAN
1121 icmp_echo_ignore_all - BOOLEAN
1122 If set non-zero, then the kernel will ignore all ICMP ECHO
1127 icmp_echo_ignore_broadcasts - BOOLEAN
1128 If set non-zero, then the kernel will ignore all ICMP ECHO and
1133 icmp_ratelimit - INTEGER
1143 icmp_msgs_per_sec - INTEGER
1151 icmp_msgs_burst - INTEGER
1158 icmp_ratemask - INTEGER
1185 icmp_ignore_bogus_error_responses - BOOLEAN
1193 icmp_errors_use_inbound_ifaddr - BOOLEAN
1198 If non-zero, the message will be sent with the primary address of
1205 then the primary address of the first non-loopback interface that
1210 igmp_max_memberships - INTEGER
1222 M = 65536-sizeof (ip header)/(sizeof(Group record))
1227 (65536-24) / 12 = 5459
1232 igmp_max_msf - INTEGER
1238 igmp_qrv - INTEGER
1245 force_igmp_version - INTEGER
1246 - 0 - (default) No enforcement of a IGMP version, IGMPv1/v2 fallback
1249 - 1 - Enforce to use IGMP version 1. Will also reply IGMPv1 report if
1251 - 2 - Enforce to use IGMP version 2. Will fallback to IGMPv1 if receive
1253 - 3 - Enforce to use IGMP version 3. The same react with default 0.
1269 log_martians - BOOLEAN
1275 accept_redirects - BOOLEAN
1279 - both conf/{all,interface}/accept_redirects are TRUE in the case
1284 - at least one of conf/{all,interface}/accept_redirects is TRUE in the
1291 - TRUE (host)
1292 - FALSE (router)
1294 forwarding - BOOLEAN
1298 mc_forwarding - BOOLEAN
1304 medium_id - INTEGER
1309 to its medium, value of -1 means that medium is not known.
1315 proxy_arp - BOOLEAN
1322 proxy_arp_pvlan - BOOLEAN
1340 Hewlett-Packard call it Source-Port filtering or port-isolation.
1341 Ericsson call it MAC-Forced Forwarding (RFC Draft).
1343 shared_media - BOOLEAN
1353 secure_redirects - BOOLEAN
1366 send_redirects - BOOLEAN
1375 bootp_relay - BOOLEAN
1386 accept_source_route - BOOLEAN
1393 - TRUE (router)
1394 - FALSE (host)
1396 accept_local - BOOLEAN
1402 route_localnet - BOOLEAN
1408 rp_filter - INTEGER
1409 - 0 - No source validation.
1410 - 1 - Strict mode as defined in RFC3704 Strict Reverse Path
1414 - 2 - Loose mode as defined in RFC3704 Loose Reverse Path
1429 arp_filter - BOOLEAN
1430 - 1 - Allows you to have multiple network interfaces on the same
1437 - 0 - (default) The kernel can respond to arp requests with addresses
1441 particular interfaces. Only for more complex setups like load-
1448 arp_announce - INTEGER
1453 - 0 - (default) Use any local address, configured on any interface
1454 - 1 - Try to avoid local addresses that are not in the target's
1463 - 2 - Always use the best local address for this target.
1480 arp_ignore - INTEGER
1484 - 0 - (default): reply for any local target IP address, configured
1486 - 1 - reply only if the target IP address is local address
1488 - 2 - reply only if the target IP address is local address
1491 - 3 - do not reply for local addresses configured with scope host,
1493 - 4-7 - reserved
1494 - 8 - do not reply for all local addresses
1499 arp_notify - BOOLEAN
1508 arp_accept - BOOLEAN
1512 - 0 - don't create new entries in the ARP table
1513 - 1 - create new entries in the ARP table
1522 mcast_solicit - INTEGER
1527 ucast_solicit - INTEGER
1531 app_solicit - INTEGER
1536 mcast_resolicit - INTEGER
1540 disable_policy - BOOLEAN
1543 disable_xfrm - BOOLEAN
1546 igmpv2_unsolicited_report_interval - INTEGER
1552 igmpv3_unsolicited_report_interval - INTEGER
1558 promote_secondaries - BOOLEAN
1563 drop_unicast_in_l2_multicast - BOOLEAN
1564 Drop any unicast IP packets that are received in link-layer
1572 drop_gratuitous_arp - BOOLEAN
1580 tag - INTEGER
1585 xfrm4_gc_thresh - INTEGER
1586 (Obsolete since linux-4.14)
1591 igmp_link_local_mcast_reports - BOOLEAN
1602 - Andi Kleen
1604 - Nicolas Delon
1616 bindv6only - BOOLEAN
1621 - TRUE: disable IPv4-mapped address feature
1622 - FALSE: enable IPv4-mapped address feature
1626 flowlabel_consistency - BOOLEAN
1631 - TRUE: enabled
1632 - FALSE: disabled
1636 auto_flowlabels - INTEGER
1655 flowlabel_state_ranges - BOOLEAN
1656 Split the flow label number space into two ranges. 0-0x7FFFF is
1657 reserved for the IPv6 flow manager facility, 0x80000-0xFFFFF
1660 - TRUE: enabled
1661 - FALSE: disabled
1665 flowlabel_reflect - INTEGER
1669 https://tools.ietf.org/html/draft-wang-6man-flow-label-reflection-01
1673 - 1: enabled for established flows
1676 in "tcp: change IPv6 flow-label upon receiving spurious retransmission"
1679 - 2: enabled for TCP RESET packets (no active listener)
1683 - 4: enabled for ICMPv6 echo reply messages.
1687 fib_multipath_hash_policy - INTEGER
1694 - 0 - Layer 3 (source and destination addresses plus flow label)
1695 - 1 - Layer 4 (standard 5-tuple)
1696 - 2 - Layer 3 or inner Layer 3 if present
1698 anycast_src_echo_reply - BOOLEAN
1702 - TRUE: enabled
1703 - FALSE: disabled
1707 idgen_delay - INTEGER
1714 idgen_retries - INTEGER
1720 mld_qrv - INTEGER
1727 max_dst_opts_number - INTEGER
1728 Maximum number of non-padding TLVs allowed in a Destination
1735 max_hbh_opts_number - INTEGER
1736 Maximum number of non-padding TLVs allowed in a Hop-by-Hop
1743 max_dst_opts_length - INTEGER
1749 max_hbh_length - INTEGER
1750 Maximum length allowed for a Hop-by-Hop options extension
1755 skip_notify_on_dev_down - BOOLEAN
1764 nexthop_compat_mode - BOOLEAN
1778 ip6frag_high_thresh - INTEGER
1784 ip6frag_low_thresh - INTEGER
1787 ip6frag_time - INTEGER
1792 seg6_flowlabel - INTEGER
1797 -1 set flowlabel to zero.
1806 Change the interface-specific default settings.
1810 Change all the interface-specific settings.
1814 conf/all/forwarding - BOOLEAN
1825 proxy_ndp - BOOLEAN
1828 fwmark_reflect - BOOLEAN
1829 Controls the fwmark of kernel-generated IPv6 reply packets that are not
1842 accept_ra - INTEGER
1861 - enabled if local forwarding is disabled.
1862 - disabled if local forwarding is enabled.
1864 accept_ra_defrtr - BOOLEAN
1869 - enabled if accept_ra is enabled.
1870 - disabled if accept_ra is disabled.
1872 accept_ra_from_local - BOOLEAN
1873 Accept RA with source-address that is found on local machine
1876 Default is to NOT accept these as it may be an un-intended
1881 - enabled if accept_ra_from_local is enabled
1883 - disabled if accept_ra_from_local is disabled
1886 accept_ra_min_hop_limit - INTEGER
1894 accept_ra_pinfo - BOOLEAN
1899 - enabled if accept_ra is enabled.
1900 - disabled if accept_ra is disabled.
1902 accept_ra_rt_info_min_plen - INTEGER
1911 * -1 if accept_ra_rtr_pref is disabled.
1913 accept_ra_rt_info_max_plen - INTEGER
1922 * -1 if accept_ra_rtr_pref is disabled.
1924 accept_ra_rtr_pref - BOOLEAN
1929 - enabled if accept_ra is enabled.
1930 - disabled if accept_ra is disabled.
1932 accept_ra_mtu - BOOLEAN
1938 - enabled if accept_ra is enabled.
1939 - disabled if accept_ra is disabled.
1941 accept_redirects - BOOLEAN
1946 - enabled if local forwarding is disabled.
1947 - disabled if local forwarding is enabled.
1949 accept_source_route - INTEGER
1952 - >= 0: Accept only routing header type 2.
1953 - < 0: Do not accept routing header.
1957 autoconf - BOOLEAN
1963 - enabled if accept_ra_pinfo is enabled.
1964 - disabled if accept_ra_pinfo is disabled.
1966 dad_transmits - INTEGER
1967 The amount of Duplicate Address Detection probes to send.
1971 forwarding - INTEGER
1972 Configure interface-specific Host/Router behaviour.
1981 - 0 Forwarding disabled
1982 - 1 Forwarding enabled
2008 hop_limit - INTEGER
2013 mtu - INTEGER
2018 ip_nonlocal_bind - BOOLEAN
2019 If set, allows processes to bind() to non-local IPv6 addresses,
2020 which can be quite useful - but may break some applications.
2024 router_probe_interval - INTEGER
2030 router_solicitation_delay - INTEGER
2036 router_solicitation_interval - INTEGER
2041 router_solicitations - INTEGER
2047 use_oif_addrs_only - BOOLEAN
2054 use_tempaddr - INTEGER
2066 * -1 (for point-to-point devices and loopback devices)
2068 temp_valid_lft - INTEGER
2073 temp_prefered_lft - INTEGER
2078 keep_addr_on_down - INTEGER
2088 max_desync_factor - INTEGER
2096 regen_max_retry - INTEGER
2102 max_addresses - INTEGER
2110 disable_ipv6 - BOOLEAN
2112 will be dynamically set to TRUE if DAD fails for the link-local
2118 it will dynamically create a link-local address on the given
2119 interface and start Duplicate Address Detection, if necessary.
2126 accept_dad - INTEGER
2127 Whether to accept DAD (Duplicate Address Detection).
2132 2 Enable DAD, and disable IPv6 operation if MAC-based duplicate
2133 link-local address has been found.
2139 force_tllao - BOOLEAN
2140 Enable sending the target link-layer address option even when
2145 Quoting from RFC 2461, section 4.4, Target link-layer address:
2151 omitted since the sender of the solicitation has the correct link-
2153 solicitation in the first place. However, including the link-layer
2155 race condition where the sender deletes the cached link-layer address
2158 ndisc_notify - BOOLEAN
2161 * 0 - (default): do nothing
2162 * 1 - Generate unsolicited neighbour advertisements when device is brought
2165 ndisc_tclass - INTEGER
2173 * 0 - (default)
2175 mldv1_unsolicited_report_interval - INTEGER
2181 mldv2_unsolicited_report_interval - INTEGER
2187 force_mld_version - INTEGER
2188 * 0 - (default) No enforcement of a MLD version, MLDv1 fallback allowed
2189 * 1 - Enforce to use MLD version 1
2190 * 2 - Enforce to use MLD version 2
2192 suppress_frag_ndisc - INTEGER
2196 * 1 - (default) discard fragmented neighbor discovery packets
2197 * 0 - allow fragmented neighbor discovery packets
2199 optimistic_dad - BOOLEAN
2200 Whether to perform Optimistic Duplicate Address Detection (RFC 4429).
2205 Optimistic Duplicate Address Detection for the interface will be enabled
2209 use_optimistic - BOOLEAN
2221 stable_secret - IPv6 address
2223 addresses for link-local addresses and autoconfigured
2226 addrgenmode ip-link. conf/default/stable_secret is used as the
2235 addr_gen_mode - INTEGER
2236 Defines how link-local and autoconf addresses are generated.
2240 1 do no generate a link-local address, use EUI64 for addresses
2247 drop_unicast_in_l2_multicast - BOOLEAN
2248 Drop any unicast IPv6 packets that are received in link-layer
2253 drop_unsolicited_na - BOOLEAN
2260 enhanced_dad - BOOLEAN
2262 duplicate address detection per RFC7527. A received DAD NS will only signal
2264 detection of duplicates due to loopback of the NS messages that we send.
2273 ratelimit - INTEGER
2281 ratemask - list of comma separated ranges
2286 list of ranges (e.g. "0-127,129" for ICMPv6 message type 0 to 127 and
2290 Refer to: https://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xhtml
2294 Default: 0-1,3-127 (rate limit ICMPv6 errors except Packet Too Big)
2296 echo_ignore_all - BOOLEAN
2297 If set non-zero, then the kernel will ignore all ICMP ECHO
2302 echo_ignore_multicast - BOOLEAN
2303 If set non-zero, then the kernel will ignore all ICMP ECHO
2308 echo_ignore_anycast - BOOLEAN
2309 If set non-zero, then the kernel will ignore all ICMP ECHO
2314 xfrm6_gc_thresh - INTEGER
2315 (Obsolete since linux-4.14)
2323 YOSHIFUJI Hideaki / USAGI Project <yoshfuji@linux-ipv6.org>
2329 bridge-nf-call-arptables - BOOLEAN
2330 - 1 : pass bridged ARP traffic to arptables' FORWARD chain.
2331 - 0 : disable this.
2335 bridge-nf-call-iptables - BOOLEAN
2336 - 1 : pass bridged IPv4 traffic to iptables' chains.
2337 - 0 : disable this.
2341 bridge-nf-call-ip6tables - BOOLEAN
2342 - 1 : pass bridged IPv6 traffic to ip6tables' chains.
2343 - 0 : disable this.
2347 bridge-nf-filter-vlan-tagged - BOOLEAN
2348 - 1 : pass bridged vlan-tagged ARP/IP/IPv6 traffic to {arp,ip,ip6}tables.
2349 - 0 : disable this.
2353 bridge-nf-filter-pppoe-tagged - BOOLEAN
2354 - 1 : pass bridged pppoe-tagged IP/IPv6 traffic to {ip,ip6}tables.
2355 - 0 : disable this.
2359 bridge-nf-pass-vlan-input-dev - BOOLEAN
2360 - 1: if bridge-nf-filter-vlan-tagged is enabled, try to find a vlan
2362 vlan. This allows use of e.g. "iptables -i br0.1" and makes the
2363 REDIRECT target work with vlan-on-top-of-bridge interfaces. When no
2367 - 0: disable bridge netfilter vlan interface lookup.
2374 addip_enable - BOOLEAN
2376 (ADD-IP) functionality specified in RFC5061. This extension provides
2386 pf_enable - INTEGER
2396 https://datatracker.ietf.org/doc/draft-ietf-tsvwg-sctp-failover for
2405 pf_expose - INTEGER
2410 SCTP_ADDR_PF state will be sent and a SCTP_PF-state transport info
2413 SCTP_PF state and a SCTP_PF-state transport info can be got via
2415 SCTP_PEER_ADDR_CHANGE event will be sent and it returns -EACCES when
2416 trying to get a SCTP_PF-state transport info via SCTP_GET_PEER_ADDR_INFO
2427 addip_noauth_enable - BOOLEAN
2428 Dynamic Address Reconfiguration (ADD-IP) requires the use of
2433 allowing the ADD-IP extension. For reasons of interoperability,
2438 1 Allow ADD-IP extension to be used without authentication. This
2447 auth_enable - BOOLEAN
2451 (ADD-IP) extension.
2453 - 1: Enable this extension.
2454 - 0: Disable this extension.
2458 prsctp_enable - BOOLEAN
2462 - 1: Enable extension
2463 - 0: Disable
2467 max_burst - INTEGER
2473 association_max_retrans - INTEGER
2480 max_init_retransmits - INTEGER
2481 The maximum number of retransmissions of INIT and COOKIE-ECHO chunks
2487 path_max_retrans - INTEGER
2495 pf_retrans - INTEGER
2503 http://www.ietf.org/id/draft-nishida-tsvwg-sctp-failover-05.txt
2511 ps_retrans - INTEGER
2513 from section-5 "Primary Path Switchover" in rfc7829. The primary path
2523 rto_initial - INTEGER
2530 rto_max - INTEGER
2536 rto_min - INTEGER
2542 hb_interval - INTEGER
2549 sack_timeout - INTEGER
2555 valid_cookie_life - INTEGER
2561 cookie_preserve_enable - BOOLEAN
2565 - 1: Enable cookie lifetime extension.
2566 - 0: Disable
2570 cookie_hmac_alg - STRING
2572 a listening sctp socket to a connecting client in the INIT-ACK chunk.
2586 rcvbuf_policy - INTEGER
2597 - 1: rcvbuf space is per association
2598 - 0: rcvbuf space is per socket
2602 sndbuf_policy - INTEGER
2605 - 1: Send buffer is tracked per association
2606 - 0: Send buffer is tracked per socket.
2610 sctp_mem - vector of 3 INTEGERs: min, pressure, max
2623 sctp_rmem - vector of 3 INTEGERs: min, default, max
2633 sctp_wmem - vector of 3 INTEGERs: min, default, max
2643 addr_scope_policy - INTEGER
2644 Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00
2646 - 0 - Disable IPv4 address scoping
2647 - 1 - Enable IPv4 address scoping
2648 - 2 - Follow draft but allow IPv4 private addresses
2649 - 3 - Follow draft but allow IPv4 link local addresses
2657 Please see: Documentation/admin-guide/sysctl/net.rst for descriptions of these entries.
2663 max_dgram_qlen - INTEGER