Failure with IPv6

[daurnimator]

Version (k3OS / kernel)

k3os version v0.20.7-k3s1r0

5.4.0-73-generic #82 SMP Thu Jun 3 02:29:43 UTC 2021

Architecture

x86_64

Describe the bug

My network has both ipv4 and ipv6 connectivity; however k3os seems to pick up ipv6 first, and ignores ipv4:

I0830 17:33:25.632389    3857 node.go:172] Successfully retrieved node IP: 1234::1234
I0830 17:33:25.632482    3857 server_others.go:140] kube-proxy node IP is an IPv6 address (1234::1234), assume IPv6 operation
I0830 17:33:25.643111    3857 server_others.go:186] Using iptables Proxier.
F0830 17:33:25.643200    3857 server.go:495] unable to create proxier: CIDR 10.42.0.0/16 has incorrect IP version: expect isIPv6=true

To Reproduce

Expected behavior

Actual behavior

Additional context

Turning off ipv6 (sudo connman config myethernetdevice ipv6 off) allows k3s to boot.

[dweomer]

this should be a decent workaround in your system config:

boot_cmd:
- connman config myethernetdevice ipv6 off