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IPV6 是否会阻止 Fedora 上的 DHCP？

tag-icon • tag-icon fedora dhcp ipv6
IPV6 是否会阻止 Fedora 上的 DHCP？

我在工作用的笔记本电脑上运行 Fedora 20 和 KDE。在家时我使用 DHCP，上班时我必须静态分配 IP。前几天我回家时，不知为何它没有获得 IP。更换电缆后，我家网络中的其他计算机运行正常。

在 KDE 网络管理器中，我通常会更改设置。对于接口 enp0s25，需要 IPv4，而忽略 IPv6。

所以我开始在命令行中乱搞。

[user@F20 ~]$ ifconfig
 enp0s25: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet6 fe80::2ad2:44ff:fe31:fece  prefixlen 64  scopeid 0x20<link>
    ether 28:d2:44:31:fe:ce  txqueuelen 1000  (Ethernet)
    RX packets 0  bytes 0 (0.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 20  bytes 4832 (4.7 KiB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    device interrupt 20  memory 0xf1600000-f1620000

[user@F20 ~]$ cat /etc/sysconfig/network-scripts/ifcfg-enp0s25 
TYPE="Ethernet"
BOOTPROTO=dhcp
DEFROUTE="yes"
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
IPV6_AUTOCONF="no"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
NAME="enp0s25"
UUID="b32402c2-05f3-4dd5-bd46-2edf21f3358a"
ONBOOT="yes"
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
HWADDR=28:D2:44:31:FE:CE
PEERDNS=yes
PEERROUTES=yes

这一页： 如何在 Linux 上禁用特定接口上的 ipv6？

建议我做出这些改变。

[user@F20 ~]$ cat /etc/sysconfig/network-scripts/ifcfg-enp0s25 
IPV6_AUTOCONF="no"
IPV6_DEFROUTE="no"

所以我这样做：

[user@F20 ~]$ sudo /etc/init.d/network restart
Restarting network (via systemctl):  Job for network.service failed. See 'systemctl status network.service' and 'journalctl -xn' for details.
                                                       [FAILED]


[user@F20 ~]$ journalctl -a | grep failed

Aug 07 14:31:25 F20 systemd[1]: Unit network.service entered failed state.
Aug 07 14:32:13 F20 NetworkManager[975]: <info> (enp0s25): device state change: ip-config -> failed                 (reason 'ip-config-unavailable') [70 120 5]
Aug 07 14:32:13 F20 NetworkManager[975]: <warn> Activation (enp0s25) failed for connection 'enp0s25'
Aug 07 14:32:13 F20 NetworkManager[975]: <info> (enp0s25): device state change:failed -> disconnected (reason 'none') [120 30 0]

[sudo] password for user: 
Redirecting to /bin/systemctl restart  NetworkManager.service

所以我尝试这个：

[user@F20 ~]$ cat /etc/sysctl.conf
# System default settings live in /usr/lib/sysctl.d/00-system.conf.
# To override those settings, enter new settings here, or in an /etc/sysctl.d/<name>.conf file
#
# For more information, see sysctl.conf(5) and sysctl.d(5).

net.ipv6.conf.enp0s25.disable_ipv6 = 1

它删除了 IPv6，但仍然没有给我 IPv4 DHCP 地址。

[user@F20 ~]$
enp0s25: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    ether 28:d2:44:31:fe:ce  txqueuelen 1000  (Ethernet)
    RX packets 0  bytes 0 (0.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 25  bytes 8650 (8.4 KiB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    device interrupt 20  memory 0xf1600000-f1620000  

wlp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 192.168.1.162  netmask 255.255.255.0  broadcast 192.168.1.255
    inet6 fe80::5e51:4fff:fe54:4589  prefixlen 64  scopeid 0x20<link>
    ether 5c:51:4f:54:45:89  txqueuelen 1000  (Ethernet)
    RX packets 151  bytes 19996 (19.5 KiB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 137  bytes 20501 (20.0 KiB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

我忽略了什么？

答案1

这似乎是一个错误。更新已修复该问题。

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