提权

sudo -i

通过nmcli

禁用

sudo nmcli device modify enp125s0f1 ipv6.method ignore

解释：

• sudo：以管理员权限运行命令。
• nmcli device modify：修改设备属性。
• enp125s0f1：要修改的连接的名称。
• ipv6.method ignore：将 IPv6 方法设置为 ignore，以禁用 IPv6。

执行此命令后，您需要重新启动网络管理器服务以应用更改：

效果

gxxc@gxxc-PC:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 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: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000
    link/tunnel6 :: brd ::
3: enp125s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether ff:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
4: enp125s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether ff:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet IP地址/24 brd 网络号 scope global noprefixroute enp125s0f1
       valid_lft forever preferred_lft forever
    inet6 ff:ff:ff:ff:ff:ff/64 scope link 
       valid_lft forever preferred_lft forever
5: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether ff:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
gxxc@gxxc-PC:~$ sudo nmcli device modify enp125s0f1 ipv6.method ignore
成功重新应用连接到设备 "enp125s0f1"。
gxxc@gxxc-PC:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 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: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000
    link/tunnel6 :: brd ::
3: enp125s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether ff:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
4: enp125s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether ff:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet IP地址/24 brd 网络号 scope global noprefixroute enp125s0f1
       valid_lft forever preferred_lft forever
5: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether ff:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
gxxc@gxxc-PC:~$ 

结果中可以看到，执行了命令之后，IP信息已经没有

inet6 ff:ff:ff:ff:ff:ff/64 scope link

信息中IP和mac地址已经经过处理

请注意，此更改仅适用于指定的网卡，不会禁用整个系统的 IPv6 功能。如果您需要完全禁用 IPv6，请参考其他资源，如禁用内核模块或配置 sysctl。

通过sysctl配置

配置

# 删除原配置
sed -i '/net.ipv6.conf.all.disable_ipv6/d' /etc/sysctl.conf
sed -i '/net.ipv6.conf.default.disable_ipv6/d' /etc/sysctl.conf
sed -i '/net.ipv6.conf.lo.disable_ipv6/d' /etc/sysctl.conf
# 删除原配置
sed -i '/net.ipv6.conf.all.disable_ipv6/d' /etc/sysctl.d/*
sed -i '/net.ipv6.conf.lo.disable_ipv6/d' /etc/sysctl.d/*
sed -i '/net.ipv6.conf.default.disable_ipv6/d' /etc/sysctl.d/*

# 写入新配置
echo 'net.ipv6.conf.all.disable_ipv6 = 1'> /etc/sysctl.d/ipv6.conf
echo 'net.ipv6.conf.lo.disable_ipv6 = 1'>> /etc/sysctl.d/ipv6.conf
echo 'net.ipv6.conf.default.disable_ipv6 = 1'>> /etc/sysctl.d/ipv6.conf
sysctl --system | grep net.ipv6.conf