IPV6上不去，偶尔能进下，是学校问题还是我系统问题

一、Windows XP下查看本机地址：

C:\Documents and Settings\zq>ipv6 if


Interface 5: Teredo Tunneling Pseudo-Interface
Guid {BC4FA286-37EF-4723-B348-D7E51CC3AD4A}
zones: link 5 site 2
cable unplugged
uses Neighbor Discovery
uses Router Discovery
routing preference 2
link-layer address: 0.0.0.0:0
preferred link-local fe80::5445:5245:444f, life infinite
multicast interface-local ff01::1, 1 refs, not reportable
multicast link-local ff02::1, 1 refs, not reportable
link MTU 1280 (true link MTU 1280)
current hop limit 128
reachable time 19000ms (base 30000ms)
retransmission interval 1000ms
DAD transmits 0
default site prefix length 48

//以上为系统自动生成的伪接口；用于穿越NAT的隧道类型。


Interface 4: Ethernet: 本地连接
Guid {7BD0CF77-EFEE-4794-B1CF-4198D007E80A}
uses Neighbor Discovery
uses Router Discovery
link-layer address: 00-12-3f-65-20-65
preferred global 2001:1::d5e0:1ac:2764:6be0, life 6d22h38m18s/22h35m31s (temporary)
deprecated global 2001:1::496f:960e:828:a591, life 5d22h41m9s/0s (temporary)
preferred global 2001:1::212:3fff:fe65:2065, life 29d23h59m16s/6d23h59m16s (public)
preferred link-local fe80::212:3fff:fe65:2065, life infinite
multicast interface-local ff01::1, 1 refs, not reportable
multicast link-local ff02::1, 1 refs, not reportable
multicast link-local ff02::1:ff65:2065, 2 refs, last reporter
multicast link-local ff02::1:ff28:a591, 1 refs, last reporter
multicast link-local ff02::1:ff64:6be0, 1 refs, last reporter
link MTU 1500 (true link MTU 1500)
current hop limit 64
reachable time 24500ms (base 30000ms)
retransmission interval 1000ms
DAD transmits 1
default site prefix length 48

//实际网卡双栈地址；


Interface 3: 6to4 Tunneling Pseudo-Interface
Guid {A995346E-9F3E-2EDB-47D1-9CC7BA01CD73}
does not use Neighbor Discovery
does not use Router Discovery
routing preference 1
link MTU 1280 (true link MTU 65515)
current hop limit 128
reachable time 39000ms (base 30000ms)
retransmission interval 1000ms
DAD transmits 0
default site prefix length 48

//6to4隧道类型。


Interface 2: Automatic Tunneling Pseudo-Interface
Guid {48FCE3FC-EC30-E50E-F1A7-71172AEEE3AE}
does not use Neighbor Discovery
does not use Router Discovery
routing preference 1
EUI-64 embedded IPv4 address: 0.0.0.0
router link-layer address: 0.0.0.0
preferred link-local fe80::5efe:222.192.25.20, life infinite
link MTU 1280 (true link MTU 65515)
current hop limit 128
reachable time 44000ms (base 30000ms)
retransmission interval 1000ms
DAD transmits 0
default site prefix length 48

//自动隧道类型。


Interface 1: Loopback Pseudo-Interface
Guid {6BD113CC-5EC2-7638-B953-0B889DA72014}
zones: link 1 site 3
does not use Neighbor Discovery
does not use Router Discovery
link-layer address:
preferred link-local ::1, life infinite
preferred link-local fe80::1, life infinite
link MTU 1500 (true link MTU 4294967295)
current hop limit 128
reachable time 35500ms (base 30000ms)
retransmission interval 1000ms
DAD transmits 0
default site prefix length 48

//回环地址；

一、Windows XP下测试与服务器的连通性：

C:\Documents and Settings\zq>ping 2001:1::212:3fff:fe65:2065

Pinging 2001:1::212:3fff:fe65:2065 with 32 bytes of data:

Reply from 2001:1::212:3fff:fe65:2065: time<1ms
Reply from 2001:1::212:3fff:fe65:2065: time<1ms
Reply from 2001:1::212:3fff:fe65:2065: time<1ms
Reply from 2001:1::212:3fff:fe65:2065: time<1ms

Ping statistics for 2001:1::212:3fff:fe65:2065:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

最近就是上不去啊    能分到V6地址

根据以上信息看不出来问题原因！楼主可以参考：
如何确定自己是否已接入IPv6网络及故障分析
或将你的ipconfig /all信息
netsh interface ipv6 show route 信息贴上来看看
以及ping 你的IPv6 Default gateway信息，tracert  -6 ipv6.google.com等结果都贴出来看看