https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254445
Bug ID: 254445
Summary: cloned_interfaces="bridge0" does not respect
net.inet6.ip6.auto_linklocal
Product: Base System
Version: 13.0-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: conf
Assignee: [email protected]
Reporter: [email protected]
Flags: mfc-stable13?
Expected behavior
-----------------
When creating a IPv6-enabled bridge interface, the AUTO_LINKLOCAL flag will be
set automatically, and the interface will be assigned a link-local address.
Observed behavior
-----------------
The IPv6-enabled bridge interface does not have a link-local address, even if a
globally-unique address is assigned to affirm the IPv6 intent.
First observed on 12.1-RELEASE amd64, observed again on 12.2-RELEASE-p4 amd64,
reproduced on 13.0-RC3 aarch64 EC2 AMI.
Steps to reproduce
------------------
Verify that net.inet6.ip6.auto_linklocal==1.
Set cloned_interfaces="bridge0" and reboot.
Verify that AUTO_LINKLOCAL is not set on bridge0.
Then set ifconfig_bridge0_ipv6="inet6 2001:db8::1/64" and reboot.
Verify that AUTO_LINKLOCAL is not set on bridge0.
Note that AWS AMIs set ipv6_activate_all_interfaces="YES" by default.
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