Overcloud deployment failing and IPv6 errors in kernel log
Issue
- The overcloud deployment is failing with network issues. After looking at the kernel log the following message is repeated frequently on the overcloud nodes:
[ 631.690683] ICMPv6: NA: someone advertises our address <ipv6> on br-ex!
[ 631.690690] ICMPv6: NA: someone advertises our address <ipv6> on br-ex!
...
IPv6: p1p2: IPv6 duplicate address <ipv6> detected!
- IPv6 is not enabled in the templates
Environment
- Red Hat OpenStack Platform 9.0
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