https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275265
Bug ID: 275265
Summary: When net.inet6.icmp6.nodeinfo=0 interfaces should not
join NI multicast groups
Product: Base System
Version: 14.0-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 246500
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=246500&action=edit
patch
Incomplete bugfix 257709 - netinet6: Set net.inet6.icmp6.nodeinfo default to 0
When sysctl net.inet6.icmp6.nodeinfo=0, sys/netinet6/in6.6
(in6_update_ifa_join_mc) should not join experimental Node Information
multicast groups (ff02::2:XXX and ff02::2:ffXX) or increase startup delay.
% sysctl net.inet6.icmp6.nodeinfo
net.inet6.icmp6.nodeinfo: 0
% ifmcstat
bge0:
inet6 [...redacted..]%bge0 scopeid 0x1
mldv2 flags=2<USEALLOW> rv 2 qi 125 qri 10 uri 3
[...redacted...]
group ff02::2:205f:1f4a%bge0 scopeid 0x1 mode exclude
mcast-macaddr 33:33:20:5f:1f:4a
group ff02::2:ff20:5f1f%bge0 scopeid 0x1 mode exclude
mcast-macaddr 33:33:ff:20:5f:1f
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