Xen domainU主机没有正确桥接(总是192.168.1.122)

我试图在一个新的Xen服务器上设置一些domU主机,但是,我似乎无法得到任何这些主机连接到本地networking(即办公室的192.168.0。*范围)。 在这些主机上运行dhclient只分配192.168.122。* ip地址,我可以从dom0 ping,但不能从任何外部主机(如我的工作站)ping。 这里是一些信息:

dom0的ifconfig:

eth0 Link encap:Ethernet HWaddr 54:04:a6:19:25:77 inet addr:192.168.0.107 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::5604:a6ff:fe19:2577/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:13383 errors:0 dropped:0 overruns:0 frame:0 TX packets:2193 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1808204 (1.8 MB) TX bytes:462896 (462.8 KB) Interrupt:18 Memory:fb500000-fb520000 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:16436 Metric:1 RX packets:72 errors:0 dropped:0 overruns:0 frame:0 TX packets:72 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:9600 (9.6 KB) TX bytes:9600 (9.6 KB) vif7.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:27 errors:0 dropped:0 overruns:0 frame:0 TX packets:363 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:32 RX bytes:4372 (4.3 KB) TX bytes:20444 (20.4 KB) virbr0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:130 errors:0 dropped:0 overruns:0 frame:0 TX packets:136 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:21401 (21.4 KB) TX bytes:19171 (19.1 KB) 

和domU的ifconfig:

 eth0 Link encap:Ethernet HWaddr 00:16:3e:5a:85:b0 inet addr:192.168.122.51 Bcast:192.168.122.255 Mask:255.255.255.0 inet6 addr: fe80::216:3eff:fe5a:85b0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:476 errors:0 dropped:0 overruns:0 frame:0 TX packets:27 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:19650 (19.6 KB) TX bytes:4750 (4.7 KB) Interrupt:10 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:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) 

在/ etc / xen的VMconfiguration文件中,我们也看到:

 # # Networking # dhcp = 'dhcp' vif = [ 'mac=00:16:3E:5A:85:B0' ] 

dom0上的iptables规则:

 iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT udp -- anywhere anywhere udp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT udp -- anywhere anywhere udp dpt:bootps ACCEPT tcp -- anywhere anywhere tcp dpt:bootps Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere PHYSDEV match --physdev-out vif7.0 --physdev-is-bridged ACCEPT all -- anywhere anywhere PHYSDEV match --physdev-in vif7.0 --physdev-is-bridged ACCEPT all -- anywhere 192.168.122.0/24 state RELATED,ESTABLISHED ACCEPT all -- 192.168.122.0/24 anywhere ACCEPT all -- anywhere anywhere REJECT all -- anywhere anywhere reject-with icmp-port-unreachable REJECT all -- anywhere anywhere reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT) target prot opt source destination 

最后,在/etc/xen/xend.conf中,我们看到启用了以下选项:

 (network-script network-bridge) (vif-script vif-bridge) 

根据文件是你应该需要的。 这些是Ubuntu的盒子,顺便说一句。

作为Xen的新手,我期望的行为将会是domU中的eth0将被分配给办公室的dhcp服务器的192.168.0。*地址 – 这是我以前使用的其他虚拟化产品的行为(即Virtualbox + VMWare的)。

请问有人可以解释一下吗?

干杯!

find解决办法,原来我们有一些Qemu的干扰。 观察下列文件:

 # cat /etc/libvirt/qemu/networks/autostart/default.xml <network> <name>default</name> <bridge name="virbr0" /> <forward/> <ip address="192.168.122.1" netmask="255.255.255.0"> <dhcp> <range start="192.168.122.2" end="192.168.122.254" /> </dhcp> </ip> </network> 

这与我们创build桥接networking的能力混为一谈,而是强制NAT。 修复很简单 – 删除文件并重新启动! 接下来我们的界面如下所示:

 eth0 Link encap:Ethernet HWaddr 54:04:a6:19:25:77 inet addr:192.168.0.107 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::5604:a6ff:fe19:2577/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:11544 errors:0 dropped:0 overruns:0 frame:0 TX packets:316 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1693851 (1.6 MB) TX bytes:37859 (37.8 KB) 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:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) peth0 Link encap:Ethernet HWaddr 54:04:a6:19:25:77 inet6 addr: fe80::5604:a6ff:fe19:2577/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:16811 errors:0 dropped:0 overruns:0 frame:0 TX packets:441 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2309354 (2.3 MB) TX bytes:52524 (52.5 KB) Interrupt:18 Memory:fb500000-fb520000 vif2.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:49 errors:0 dropped:0 overruns:0 frame:0 TX packets:11937 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:32 RX bytes:5850 (5.8 KB) TX bytes:1624520 (1.6 MB) 

而且我们的桥也自动设置如下:

 # brctl show bridge name bridge id STP enabled interfaces eth0 8000.5404a6192577 no peth0 vif2.0 

所以现在所有的DomainU主机都按预期工作。 我希望这可以帮助别人:)