Documentation was updated with details how net.ipv6.conf.all settings are
used and how they affect current behaviour and interface-specific settings.
Signed-off-by: Milos Vyletel <milos.vyle...@gmail.com>
---
Documentation/networking/ip-sysctl.txt | 48 ++++++++++++++++++++++++++++++----
1 file changed, 43 insertions(+), 5 deletions(-)
diff --git a/Documentation/networking/ip-sysctl.txt
b/Documentation/networking/ip-sysctl.txt
index ab42c95..f0406ff 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1159,13 +1159,51 @@ ip6frag_secret_interval - INTEGER
Default: 600
conf/default/*:
- Change the interface-specific default settings.
+ Change the interface-specific default settings. These settings are
+ applied to all interfaces that have not been up and that did not have
+ this settings set previously. This is usually only during boot before
+ network is set up when sysctl settings are applied.
conf/all/*:
- Change all the interface-specific settings.
-
- [XXX: Other special features than forwarding?]
+ Change all the interface-specific settings. Different settings have
+ different effect. There are three different groups based on how they
+ treat conf/all vs interface-specific settings. These groups are
+
+ Both conf/all and interface must enable this feature (andconf)
+ - accept_ra_defrtr
+ - accept_ra_pinfo
+ - accept_ra_rtr_pref
+ - accept_redirects
+ - autoconf
+ - force_tllao
+ - mforward
+ - ndisc_notify
+ - suppress_frag_ndisc
+
+ Either conf/all or interface must enable this feature (orconf)
+ - disable_ipv6
+ - proxy_ndp
+
+ Maximum value of conf/all or interface will be used (maxconf)
+ - accept_dad
+ - accept_ra
+ - accept_ra_rt_info_max_plen
+ - accept_source_route
+ - dad_transmits
+ - hop_limit
+ - max_addresses
+ - max_desync_factor
+ - mtu
+ - optimistic_dad
+ - regen_max_retry
+ - router_probe_interval
+ - router_solicitation_delay
+ - router_solicitation_interval
+ - router_solicitations
+ - temp_prefered_lft
+ - temp_valid_lft
+ - use_tempaddr
conf/all/forwarding - BOOLEAN
Enable global IPv6 forwarding between all interfaces.
@@ -1414,7 +1452,7 @@ force_mld_version - INTEGER
1 - Enforce to use MLD version 1
2 - Enforce to use MLD version 2
-suppress_frag_ndisc - INTEGER
+suppress_frag_ndisc - BOOLEAN
Control RFC 6980 (Security Implications of IPv6 Fragmentation
with IPv6 Neighbor Discovery) behavior:
1 - (default) discard fragmented neighbor discovery packets
--
1.9.0
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