From 0b03a5ca8b14321366eec4a903922d2b46d585ff Mon Sep 17 00:00:00 2001 From: Stephen Suryaputra Date: Wed, 20 Mar 2019 10:29:27 -0400 Subject: ipv6: Add icmp_echo_ignore_anycast for ICMPv6 In addition to icmp_echo_ignore_multicast, there is a need to also prevent responding to pings to anycast addresses for security. Signed-off-by: Stephen Suryaputra Signed-off-by: David S. Miller --- net/ipv6/af_inet6.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/ipv6/af_inet6.c') diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index fdc117de849c..fa6b404cbd10 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -848,6 +848,7 @@ static int __net_init inet6_net_init(struct net *net) net->ipv6.sysctl.icmpv6_time = 1*HZ; net->ipv6.sysctl.icmpv6_echo_ignore_all = 0; net->ipv6.sysctl.icmpv6_echo_ignore_multicast = 0; + net->ipv6.sysctl.icmpv6_echo_ignore_anycast = 0; net->ipv6.sysctl.flowlabel_consistency = 1; net->ipv6.sysctl.auto_flowlabels = IP6_DEFAULT_AUTO_FLOW_LABELS; net->ipv6.sysctl.idgen_retries = 3; -- cgit v1.2.3