Bug#1017584: bullseye launch failures in IPv6-only VPC subnets

2022-08-21 Thread Ross Vandegrift
On Wed, Aug 17, 2022 at 07:40:04PM -0700, Noah Meyerhans wrote: > Adding some tracing to the dhclient-script, I can see that > /etc/dhcp/dhclient-exit-hooks.d/rfc3442-classless-routes is trying to add > the routes with calls like: > > ip -4 route add 169.254.169.254/32 via 169.254.0.1 dev ens5 >

Bug#1017584: bullseye launch failures in IPv6-only VPC subnets

2022-08-17 Thread Noah Meyerhans
Adding some tracing to the dhclient-script, I can see that /etc/dhcp/dhclient-exit-hooks.d/rfc3442-classless-routes is trying to add the routes with calls like: ip -4 route add 169.254.169.254/32 via 169.254.0.1 dev ens5 However, because there's no route to 169.254.0.1, the call fails with "Error

Bug#1017584: bullseye launch failures in IPv6-only VPC subnets

2022-08-17 Thread Noah Meyerhans
Package: cloud.debian.org Severity: important User: cloud.debian@packages.debian.org Usertags: aws image When AWS originally launched IPv6-only VPC subnets, the DHCPv4 server handed out a link-local v4 address and a default route that was a blackhole for most destinations. It did route traffi