bugzilla-daemon at netfilter.org
2017-Mar-25 10:54 UTC
[Bug 1138] New: icmpv6 mld-listener-query not detcted
https://bugzilla.netfilter.org/show_bug.cgi?id=1138 Bug ID: 1138 Summary: icmpv6 mld-listener-query not detcted Product: nftables Version: unspecified Hardware: x86_64 OS: SuSE Linux Status: NEW Severity: normal Priority: P5 Component: kernel Assignee: pablo at netfilter.org Reporter: bratislav.ilic at prointer.rs It seems that nftables in Linux 4.10.4-1-default #1 SMP PREEMPT Sat Mar 18 12:29:57 UTC 2017 (e2ef894) x86_64 x86_64 x86_64 GNU/Linux just does not detect icmpv6 mld-listener-query packets. With following ruleset table inet filter { chain INPUT { type filter hook input priority 0; policy drop; iif "lo" accept ct state { related, established} accept ct state invalid counter packets 8 bytes 411 drop iif "ens192" icmpv6 type mld-listener-query counter packets 0 bytes 0 drop iif "ens192" icmpv6 type mld-listener-report counter packets 22 bytes 1408 drop iif "ens192" counter packets 65 bytes 4680 log prefix "UNKOWN Scanner!: " reject } I get type 131 (mld-listener-report) packets dropped, but not 130 (mld-listener-query) ... dmesg [45184.023825] UNKOWN Scanner!: IN=ens192 OUTMAC=33:33:00:00:00:01:64:66:b3:80:77:42:86:dd SRC=fe80:0000:0000:0000:6666:b3ff:fe80:7742 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=72 TC=0 HOPLIMIT=1 FLOWLBL=0 PROTO=ICMPv6 TYPE=130 CODE=0 Also it seems that this issue has been around for quite some time and I have found it reported before: https://www.spinics.net/lists/netfilter/msg55746.html Best regards, Bratislav ILIC -- You are receiving this mail because: You are watching all bug changes. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.netfilter.org/pipermail/netfilter-buglog/attachments/20170325/ba2fa536/attachment.html>
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