ET POLICY Protocol 41 IPv6 encapsulation potential 6in4 IPv6 tunnel active

Query · suricata

ip_proto:41;
threshold:type both,track by_dst, count 1, seconds 60;
Raw source ET POLICY Protocol 41 IPv6 encapsulation potential 6in4 IPv6 tunnel active · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert ip $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET POLICY Protocol 41 IPv6 encapsulation potential 6in4 IPv6 tunnel active";
    ip_proto:41;
    threshold:type both,track by_dst, count 1, seconds 60;
    reference:url,en.wikipedia.org/wiki/6in4;
    classtype:policy-violation;
    sid:2012141; rev:2;
    metadata:created_at 2011_01_05, confidence High, signature_severity Informational, updated_at 2019_07_26;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.