How to enable ipv6 to access the internet?

[Tony-Yes]

Operating system

debian

Description

How do I enable ipv6? I have an ipv6 network in my container, but I found that the network created by qemu does not use ipv6 addresses

Docker compose

services:
windows:
image: dockurr/windows
container_name: windows
environment:
VERSION: "11"
LANGUAGE: "Chinese"
DISK_SIZE: "128G"
CPU_CORES: "8"
RAM_SIZE: "8G"
USERNAME: "Tony"
PASSWORD: "xxx"
#ARGUMENTS: "-netdev tap,id=hostnet1,ifname=qemu,script=no,down
script=no,ipv6=yes,netdev=hostnet1,id=net1"
volumes:
- /opt/win:/storage
- /home:/data
devices:
- /dev/kvm
- /dev/net/tun
cap_add:
- NET_ADMIN
ports:
- 8006:8006
- 3389:3389/tcp
- 3389:3389/udp
stop_grace_period: 2m
networks:
"10":
ipv4_address: 10.0.0.111
networks:
"10":
external: true
name: "10"

Docker log

root@3b7581024b78:/# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNK
NOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: dockerbridge: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdi
sc noqueue state UP group default qlen 1000
    link/ether 3a:bc:61:d1:c0:a4 brd ff:ff:ff:ff:ff:ff
    inet 20.20.20.1/24 brd 20.20.20.255 scope global dockerbrid
ge
       valid_lft forever preferred_lft forever
    inet6 fe80::8822:7cff:fe32:32df/64 scope link
       valid_lft forever preferred_lft forever
3: qemu: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdi
sc fq master dockerbridge state UP group default qlen 1000
    link/ether 3a:bc:61:d1:c0:a4 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::38bc:61ff:fed1:c0a4/64 scope link
       valid_lft forever preferred_lft forever
57: eth0@if58: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
 noqueue state UP group default
    link/ether 02:42:0a:00:00:6f brd ff:ff:ff:ff:ff:ff link-net
nsid 0
    inet 10.0.0.111/24 brd 10.0.0.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 2001:db8:1::2/64 scope global nodad
       valid_lft forever preferred_lft forever
    inet6 fe80::42:aff:fe00:6f/64 scope link
       valid_lft forever preferred_lft forever

Screenshots (optional)

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