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EC2: Turn off IPv6 DAD
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Authored by cperciva on Nov 23 2021, 4:26 AM.
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Details

Summary

Disable Duplicate Address Detection in EC2 instances. The networking
configuration in EC2, with IPv6 addresses assigned by DHCPv6 and
host egress filtering, makes "duplicate addresses" impossible.

This speeds up the boot process in EC2 by 2 seconds.
Sponsored by: https://www.patreon.com/cperciva

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint Passed
Unit
No Test Coverage
Build Status
Buildable 42931
Build 39819: arc lint + arc unit

Event Timeline

kp added inline comments.
release/tools/ec2.conf
75

Doesn't that want to be ${DESTDIR}/etc/sysctl.conf ?

cperciva added inline comments.
release/tools/ec2.conf
75

Oops, yes. Fixed.

This revision is now accepted and ready to land.Nov 23 2021, 5:12 AM
This revision was automatically updated to reflect the committed changes.
cperciva marked an inline comment as done.