计算节点上启动的VM实例可以访问除C-Class IP之外的所有外部Internet网站。根据ubuntu上的openstack自由指南,控制器和计算节点已成功安装。
[root @ vm3~] #wget http://www.sina.com.cn解析www.sina.com.cn ... 202.108.33.60正在连接到www.sina.com.cn | 202.108.33.60 |:80 ... failed:无路由主持人。
但是,可以成功访问A-CLass和B-Class外部IP:
[root@vm3 ~]# wget http://www.163.com Resolving www.163.com... 60.207.246.98, 124.202.166.57 Connecting to www.163.com|60.207.246.98|:80... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: “index.html.1”
VM的界面是:
[root @ vm3~] #ifconfig eth1链接封装:以太网HWaddr FA:16:3E:57:1B:57
inet addr:192.168.0.215 Bcast:255.255.255.255掩码:192.0.0.0 inet6 addr:fe80 :: f816:3eff:fe57:1b57 / 64范围:链接 UP BROADCAST RUNNING MULTICAST MTU:1450公制:1 RX数据包:46213错误:0丢弃:0超限:0帧:0 TX数据包:42118错误:0丢弃:0溢出:0载波:0 碰撞:0 txqueuelen:1000 RX字节:13492902(12.8 MiB)TX字节:39875879(38.0 MiB)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:58630 errors:0 dropped:0 overruns:0 frame:0 TX packets:58630 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:44931488 (42.8 MiB) TX bytes:44931488 (42.8 MiB) virbr0 Link encap:Ethernet HWaddr 52:54:00:D2:F5:28 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: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)
VM上的路由是:
[root@vm3 ~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 169.254.169.254 192.168.0.200 255.255.255.255 UGH 0 0 0 eth1 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 192.0.0.0 0.0.0.0 192.0.0.0 U 1 0 0 eth1 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth1
我创建了启动VM的公共网络。 公共网络为192.168.0.0/24,私有网络为10.0.0.0/24。 控制器:192.168.0.12/10.0.0.11 compute:192.168.0.10/10.0.0.31
如果我明确添加202.108.33.60的路由,wget可以工作:
路线添加202.108.33.60 gw 192.168.0.1
[root@vm3 ~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 202.108.33.60 192.168.0.1 255.255.255.255 UGH 0 0 0 eth1 169.254.169.254 192.168.0.200 255.255.255.255 UGH 0 0 0 eth1 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 192.0.0.0 0.0.0.0 192.0.0.0 U 1 0 0 eth1 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth1
是否有人知道原因或提供有关如何调试此问题的帮助? 非常感谢!
答案 0 :(得分:0)
几天后'分析和挖掘,最终我发现原因是路由条目" 192.0.0.0 0.0.0.0 192.0.0.0 U 1 0 0 eth1"它将过滤所有C级IP作为LAN(邻居网络),偶尔www.sina.com.cn就是这样的主机。 我将其更改为如下所示后,即可访问www.sina.com.cn。
192.0.0.0 0.0.0.0 255.0.0.0 U 1 0 0 eth1