此设置以前已在虚拟机中实现完全IPv6连接,并且在没有明显原因的情况下停止工作.
我的所有虚拟机都桥接到物理以太网,并从主机上的radvd接收通知. IPv6可在主机上正常运行,主机也是IPv6路由器. Wireshark显示主机在收到http SYN数据包后发送回ICMPv6目标无法访问(管理禁止).
Internet Explorer报告无法显示网页,Google Chrome仅显示Oops！ Chrome无法连接到网页,没有错误编号.
我甚至能够Ping本地网关和Google的IPv6地址并执行IPv6 DNS查找.
PS C:\Users\administrator> Ping -6 fe80::6e62:6dff:fed1:dfadPinging fe80::6e62:6dff:fed1:dfad with 32 bytes of data:Reply from fe80::6e62:6dff:fed1:dfad: time<1msReply from fe80::6e62:6dff:fed1:dfad: time<1msReply from fe80::6e62:6dff:fed1:dfad: time<1msReply from fe80::6e62:6dff:fed1:dfad: time<1msPing statistics for fe80::6e62:6dff:fed1:dfad: Packets: Sent = 4,Received = 4,Lost = 0 (0% loss),Approximate round trip times in milli-seconds: Minimum = 0ms,Maximum = 0ms,Average = 0msPS C:\Users\administrator> Ping -6 www.Google.comPinging www.l.Google.com [2001:4860:800a::67] with 32 bytes of data:Reply from 2001:4860:800a::67: time=43msReply from 2001:4860:800a::67: time=42msReply from 2001:4860:800a::67: time=46msReply from 2001:4860:800a::67: time=42msPing statistics for 2001:4860:800a::67: Packets: Sent = 4,Approximate round trip times in milli-seconds: Minimum = 42ms,Maximum = 46ms,Average = 43ms
我的虚拟机配置如下所示：
PS C:\Users\administrator> ipconfig /allwindows IP Configuration Host name . . . . . . . . . . . . : WIN-CRLO5NIQB72 Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : HybrID IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : localEthernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : local Description . . . . . . . . . . . : Red Hat VirtIO Ethernet Adapter Physical Address. . . . . . . . . : 52-54-00-DD-DF-3E DHCP Enabled. . . . . . . . . . . : Yes autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:db8:1600:80bf:5054:ff:fedd:df3e(Preferred) link-local IPv6 Address . . . . . : fe80::5054:ff:fedd:df3e%13(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.12.146(Preferred) subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Monday,July 09,2012 1:59:42 PM Lease Expires . . . . . . . . . . : Tuesday,July 10,2012 1:59:42 PM Default Gateway . . . . . . . . . : fe80::6e62:6dff:fed1:dfad%13 192.168.12.1 DHCP Server . . . . . . . . . . . : 192.168.12.1 DNS Servers . . . . . . . . . . . : 2001:4860:4860::8888 2001:4860:4860::8844 192.168.12.1 NetBIOS over Tcpip. . . . . . . . : EnabledTunnel adapter isatap.local: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : local Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No autoconfiguration Enabled . . . . : YesTunnel adapter Teredo Tunneling Pseudo-Interface: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e76:10d1:317d:3f57:f36d(Preferred) link-local IPv6 Address . . . . . : fe80::10d1:317d:3f57:f36d%12(Preferred) Default Gateway . . . . . . . . . : NetBIOS over Tcpip. . . . . . . . : DisabledPS C:\Users\administrator> netsh interface ipv6 show routePublish Type Met Prefix IDx Gateway/Interface name------- -------- --- ------------------------ --- ------------------------No Manual 256 ::/0 13 fe80::6e62:6dff:fed1:dfadNo Manual 256 ::1/128 1 Loopback Pseudo-Interface 1No Manual 8 2001::/32 12 Teredo Tunneling Pseudo-InterfaceNo Manual 256 2001:0:4137:9e76:10d1:317d:3f57:f36d/128 12 Teredo Tunneling Pseudo-InterfaceNo Manual 8 2001:db8:1600:80bf::/64 13 Local Area Connection 2No Manual 256 2001:db8:1600:80bf:5054:ff:fedd:df3e/128 13 Local Area Connection 2No Manual 256 fe80::/64 13 Local Area Connection 2No Manual 256 fe80::/64 12 Teredo Tunneling Pseudo-InterfaceNo Manual 256 fe80::5efe:192.168.12.146/128 11 isatap.localNo Manual 256 fe80::10d1:317d:3f57:f36d/128 12 Teredo Tunneling Pseudo-InterfaceNo Manual 256 fe80::5054:ff:fedd:df3e/128 13 Local Area Connection 2No Manual 256 ff00::/8 1 Loopback Pseudo-Interface 1No Manual 256 ff00::/8 13 Local Area Connection 2No Manual 256 ff00::/8 12 Teredo Tunneling Pseudo-InterfacePS C:\Users\administrator> netsh interface ipv6 show prefixpolicIEsquerying active state...Precedence Label Prefix---------- ----- -------------------------------- 50 0 ::1/128 40 1 ::/0 30 2 2002::/16 20 3 ::/96 10 4 ::ffff:0:0/96 5 5 2001::/32
到目前为止我在VM中尝试过：
netsh interface ipv6 set global randomizeIDentifIErs=Disabled
没变.
禁用Teredo适配器：无更改.它以某种方式重新启用.
使用the Microsoft Fix-It to prefer IPv6 over IPv4：没有变化.
到目前为止,我尝试过的东道主：
检查IPv6转发sysctl：
net.ipv6.conf.all.forwarding = 1net.ipv6.conf.br0.forwarding = 1net.ipv6.conf.default.forwarding = 1net.ipv6.conf.em1.forwarding = 1net.ipv6.conf.lo.forwarding = 1net.ipv6.conf.sit0.forwarding = 1net.ipv6.conf.sixxs.forwarding = 1net.ipv6.conf.virbr0.forwarding = 1net.ipv6.conf.virbr0-nic.forwarding = 1net.ipv6.conf.vnet0.forwarding = 1net.ipv6.conf.vnet1.forwarding = 1net.ipv6.conf.vnet2.forwarding = 1
重启radvd：没有变化.
解决方法 ICMPv6目标不可达数据包有助于将问题识别为防火墙问题.添加规则以在br0上转发IPv6数据包修复了该问题：
ip6tables -I FORWARD 6 -i br0 -s 2001:db8:1600:80bf::/64 -j ACCEPT总结
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