Technique found in https://github.com/Sadzurami/tunnelbroker-proxies/tree/main
- Add
net.ipv6.ip_nonlocal_bind=1
to/etc/sysctl.conf
- Reload sysctl with
sysctl -p
- Find your IPv6 public subnet using
ip -6 a
. Example:2a03:b0c0:3:d0::1d4f:1/64
- Execute this command and change
YOURIPV6SUBNET
with the subnet found above:/sbin/ip -6 route add local YOUR_IPV6_SUBNET dev lo