root@ucpe2:~/test# docker run -it --rm \
  --name alpine \
  --cap-add=NET_ADMIN \
  --network vlan100-ipv4 --ip 192.168.222.200 \
  --network vlan100-ipv6 --ip6 2001:db8:1d:2ec::200 \
  alpine \
  sh -c "ip route replace default via 192.168.222.1 dev eth1 && sh"
docker: Error response from daemon: invalid config for network vlan100-ipv4: invalid endpoint settings:
user specified IP address is supported only when connecting to networks with user configured subnets