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Rev: 8 • Sep 23, 2010, 12:00 PMGPL ICMP Address Mask Reply undefined code
alert icmp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL ICMP Address Mask Reply undefined code"; icode:>0; itype:18; classtype:misc-activity; sid:2100387; rev:8; metadata:created_at 2010_09_23, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)
Sep 23, 2010, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
Oct 22, 2025, 9:34 PM
rules/emerging-icmp.rules