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authorBen Greear <greearb@candelatech.com>2014-06-25 14:44:53 -0700
committerDavid S. Miller <davem@davemloft.net>2014-07-01 12:16:24 -0700
commitd93331965729850303f6111381c1a4a9e9b8ae5a (patch)
treea2d5fbd89ff16883d860fff197cf50f4abed26ae /kernel/sysctl_binary.c
parentf2a762d8a97032e58c09c5798832e25268e1c111 (diff)
downloadlinux-sh-d93331965729850303f6111381c1a4a9e9b8ae5a.tar.gz
ipv6: Allow accepting RA from local IP addresses.
This can be used in virtual networking applications, and may have other uses as well. The option is disabled by default. A specific use case is setting up virtual routers, bridges, and hosts on a single OS without the use of network namespaces or virtual machines. With proper use of ip rules, routing tables, veth interface pairs and/or other virtual interfaces, and applications that can bind to interfaces and/or IP addresses, it is possibly to create one or more virtual routers with multiple hosts attached. The host interfaces can act as IPv6 systems, with radvd running on the ports in the virtual routers. With the option provided in this patch enabled, those hosts can now properly obtain IPv6 addresses from the radvd. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/sysctl_binary.c')
-rw-r--r--kernel/sysctl_binary.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index 653cbbd9e7ad..e4ba9a5a5ccb 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -522,6 +522,7 @@ static const struct bin_table bin_net_ipv6_conf_var_table[] = {
{ CTL_INT, NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN, "accept_ra_rt_info_max_plen" },
{ CTL_INT, NET_IPV6_PROXY_NDP, "proxy_ndp" },
{ CTL_INT, NET_IPV6_ACCEPT_SOURCE_ROUTE, "accept_source_route" },
+ { CTL_INT, NET_IPV6_ACCEPT_RA_FROM_LOCAL, "accept_ra_from_local" },
{}
};