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發(fā)表于 2014-08-06 17:21 |只看該作者 |倒序瀏覽

本帖最后由 xqcool8 于 2014-08-07 16:50 編輯

最近公司在研究Centos下KVM虛機的一些東西，遇到些問題，卡了好幾天了，也找了好多文檔，但是還是沒搞定，特來求助，希望大蝦們指點一下，先謝過了。
先說說我的網(wǎng)絡環(huán)境。
服務器真實物理機：
操作系統(tǒng)：Centos 6.2 X64
網(wǎng)絡配置：eth0:122.112.5.63（公網(wǎng)IP）
            eth1:10.10.5.63（內(nèi)網(wǎng)IP）

下面是物理機一些網(wǎng)卡的信息，供大家參考
br0    Link encap:Ethernet  HWaddr 00:25:90:38:46:FF
      inet addr:10.10.5.63  Bcast:10.10.4.255  Mask:255.255.255.0
      inet6 addr: fe80::225:90ff:fe38:46ff/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:107652 errors:0 dropped:0 overruns:0 frame:0
      TX packets:703 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:5148839 (4.9 MiB)  TX bytes:35741 (34.9 KiB)

eth0    Link encap:Ethernet  HWaddr 00:25:90:38:46:FE
      inet addr:122.112.5.63  Bcast:122.112.4.159  Mask:255.255.255.224
      inet6 addr: fe80::225:90ff:fe38:46fe/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:292199 errors:0 dropped:0 overruns:0 frame:0
      TX packets:242778 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:86234813 (82.2 MiB)  TX bytes:199840339 (190.5 MiB)
      Interrupt:16 Memory:fbce0000-fbd00000

eth1    Link encap:Ethernet  HWaddr 00:25:90:38:46:FF
      inet6 addr: fe80::225:90ff:fe38:46ff/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:110761 errors:0 dropped:0 overruns:0 frame:0
      TX packets:1435 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:6867316 (6.5 MiB)  TX bytes:99428 (97.0 KiB)
      Interrupt:17 Memory:fbde0000-fbe00000

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:111903 errors:0 dropped:0 overruns:0 frame:0
      TX packets:111903 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:183419174 (174.9 MiB)  TX bytes:183419174 (174.9 MiB)

virbr0 Link encap:Ethernet  HWaddr 52:54:00:47:A7

9
      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:524 errors:0 dropped:0 overruns:0 frame:0
      TX packets:1293 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:51930 (50.7 KiB)  TX bytes:93906 (91.7 KiB)

vnet0    Link encap:Ethernet  HWaddr FE:54:00:A5:47:7B
      inet6 addr: fe80::fc54:ff:fea5:477b/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:372 errors:0 dropped:0 overruns:0 frame:0
      TX packets:1416 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:500
      RX bytes:46741 (45.6 KiB)  TX bytes:97555 (95.2 KiB)

vnet1    Link encap:Ethernet  HWaddr FE:54:00:3B

B:21
      inet6 addr: fe80::fc54:ff:fe3b:db21/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:55 errors:0 dropped:0 overruns:0 frame:0
      TX packets:2691 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:500
      RX bytes:6155 (6.0 KiB)  TX bytes:177929 (173.7 KiB)

VMc1虛擬機1：
網(wǎng)絡配置：eth0:192.168.122.100（通過NAT方式）
            eth1:10.10.5.64（通過橋接方式）

下面是虛擬機的網(wǎng)卡信息，供大家參考
[root@VMc1 ~]# ifconfig
eth0    Link encap:Ethernet  HWaddr 52:54:00:A5:47:7B
      inet addr:192.168.122.100  Bcast:192.168.122.255  Mask:255.255.255.0
      inet6 addr: fe80::5054:ff:fea5:477b/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:1502 errors:0 dropped:0 overruns:0 frame:0
      TX packets:400 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:105029 (102.5 KiB)  TX bytes:51134 (49.9 KiB)

eth1    Link encap:Ethernet  HWaddr 52:54:00:3B

B:21
      inet addr:10.10.5.64  Bcast:10.10.4.255  Mask:255.255.255.0
      inet6 addr: fe80::5054:ff:fe3b:db21/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:2815 errors:0 dropped:0 overruns:0 frame:0
      TX packets:54 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:185577 (181.2 KiB)  TX bytes:6089 (5.9 KiB)

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:1 errors:0 dropped:0 overruns:0 frame:0
      TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:112 (112.0 b)  TX bytes:112 (112.0 b)

補充：沒有多余的公網(wǎng)IP

現(xiàn)在的配置的情況是這樣的，虛擬機已經(jīng)可以通過NAT方式訪問互聯(lián)網(wǎng)，虛擬機也可以通eth1和內(nèi)網(wǎng)下的其他服務器互相通信，現(xiàn)在想解決的問題是，通過外網(wǎng)如何訪問虛擬機，就是想讓虛擬機提供服務，比如ssh了，或者apache之類的，求各位幫忙，灰常感謝，如果提供的信息不全，還可補充。