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在Ubuntu中使用IPv6

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我的电脑上装了Ubuntu 14.04 LTS 系统，学校的校园网需要拨号才能使用，并且在拨号之后获得IPv6地址。
但是实际上，我在Windows上可以正常使用IPv6地址，但是在Ubuntu上无法使用，问了度娘之后，总结解决办法如下:
更改文件/etc/sysctl.d/10-ipv6-privacy.conf

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# IPv6 Privacy Extensions (RFC 4941)
# ---
# IPv6 typically uses a device's MAC address when choosing an IPv6 address
# to use in autoconfiguration. Privacy extensions allow using a randomly
# generated IPv6 address, which increases privacy.
#
# Acceptable values:
#    0 - don’t use privacy extensions.
#    1 - generate privacy addresses
#    2 - prefer privacy addresses and use them over the normal addresses.
net.ipv6.conf.all.use_tempaddr = 2
net.ipv6.conf.default.use_tempaddr = 2

为

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# IPv6 Privacy Extensions (RFC 4941)
# ---
# IPv6 typically uses a device's MAC address when choosing an IPv6 address
# to use in autoconfiguration. Privacy extensions allow using a randomly
# generated IPv6 address, which increases privacy.
#
# Acceptable values:
#    0 - don’t use privacy extensions.
#    1 - generate privacy addresses
#    2 - prefer privacy addresses and use them over the normal addresses.
net.ipv6.conf.all.use_tempaddr = 2
net.ipv6.conf.default.use_tempaddr = 0

然后重新拨号之后，就可以正常使用IPv6了。
对于校园网不支持IPv6或者获取方式不一样的小伙伴，此方法不一定适用。
使用命令ifconfig可查看网络连接信息:

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eth0      Link encap:Ethernet  HWaddr 50:7b:9d:03:61:aa  
          inet6 addr: fe80::527b:9dff:fe03:61aa/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:506 errors:0 dropped:1 overruns:0 frame:0
          TX packets:103 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:48325 (48.3 KB)  TX bytes:14006 (14.0 KB)
          Interrupt:20 Memory:f1200000-f1220000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:226 errors:0 dropped:0 overruns:0 frame:0
          TX packets:226 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:20694 (20.6 KB)  TX bytes:20694 (20.6 KB)

ppp0      Link encap:Point-to-Point Protocol  
          inet addr:10.170.15.47  P-t-P:10.170.72.254  Mask:255.255.255.255
          inet6 addr: fe80::2a:e1b3:3273:b894/10 Scope:Link
          inet6 addr: 2001:250:1006:dff0:2a:e1b3:3273:b894/64 Scope:Global
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:42 errors:0 dropped:0 overruns:0 frame:0
          TX packets:47 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3 
          RX bytes:3793 (3.7 KB)  TX bytes:3373 (3.3 KB)

wlan0     Link encap:Ethernet  HWaddr 94:65:9c:4e:02:dc  
          inet addr:192.168.0.108  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::9665:9cff:fe4e:2dc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:24275 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8251 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:35338441 (35.3 MB)  TX bytes:845841 (845.8 KB)

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参考文章:http://www.cnblogs.com/makefile/p/5040615.html

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