我用的Distribution是SUSE，昨天上网发现无线网络突然扫描不了，在命令行下输入iwconfig wlan0得到的结果为：
wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off这个信息说明任何无线都无法被扫描到。
查了很多资料都不知道是什么原因。输入命令/etc/init.d/network restart得到的结果为：Shutting down network interfaces: eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168B No configuration found for eth0 Nevertheless the interface will be shut down. done wlan0 device: Atheros Communications Inc. AR9485 Wireless N doneShutting down service network . . . . . . . . . doneHint: you may set mandatory devices in /etc/sysconfig/network/configSetting up network interfaces: eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168B No configuration found for eth0 unused wlan0 device: Atheros Communications Inc. AR9485 Wireless N wlan0 warning: using NO encryption wlan0 Starting DHCP4+DHCP6 client. . . . . . . . wlan0 DHCP4 continues in background wlan0 DHCP6 continues in background waitingSetting up service network . . . . . . . . . . doneSuSEfirewall2: Setting up rules from /etc/sysconfig/SuSEfirewall2 …SuSEfirewall2: using default zone ‘ext’ for interface eth0SuSEfirewall2: batch committing…SuSEfirewall2: Firewall rules successfully set
注意，上面的信息中有一个异常：wlan0 DHCP6 continues in background waiting进到图形界面的“网络设置”中的“全局选项”，，如下图所示：
发现图中的“启用IPv6”选项被勾起来了。把该选项前面的勾去掉，无线网络恢复可以为正常扫描。
问题解决！
却又小到连一粒嫉妒的沙石也不能容纳
