如何为Linux虚拟机添加多块网卡 |
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如何为Linux虚拟机添加多块网卡
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如何为Linux虚拟机添加多块网卡
在VMWare虚拟机中添加网卡需要两个步骤：（1）添加网络适配器；（2）修改网卡配置文件。 一、添加网络适配器（网卡）1、在VMWare虚拟机中单击【虚拟机】===>【设置】，在弹出的窗口中选择【网络适配器】，单击【添加】按钮，在【添加硬件向导】窗口中选择【网络适配器】。如下图所示：
2、单击【下一步】按钮，在弹出的窗口中根据需要选择所需的网络连接模式。然后重启系统。
添加网卡之后，使用ipconfig看不到新增网卡的信息。 [root@oracle network-scripts]# ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:29:B3:93:61 inet addr:192.168.1.202 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:feb3:9361/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:578 errors:0 dropped:0 overruns:0 frame:0 TX packets:202 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:49773 (48.6 KiB) TX bytes:24682 (24.1 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:65536 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) 1、利用ifcfg-eth0网卡配置文件生成新增加网卡的配置文件 [root@oracle network-scripts]# cd /etc/sysconfig/network-scripts [root@oracle network-scripts]# cp /etc/sysconfig/network-scripts/ifcfg-eth0 ifcfg-eth1 [root@oracle network-scripts]# ls ifcfg* ifcfg-eth0 ifcfg-eth1 ifcfg-lo 2、编辑ifcfg-eth1配置文件 [root@oracle network-scripts]# vim ifcfg-eth1 DEVICE=eth0 HWADDR=00:0C:29:B3:93:61 TYPE=Ethernet UUID=cd246f31-87fd-4a26-a070-ccc6f8ed1c7a ONBOOT=yes BOOTPROTO=static NM_CONTROLLED=yes IPADDR=192.168.220.202 PREFIX=24 # GATEWAY=192.168.80.2 DNS1=192.168.80.2 DNS2=8.8.8.8 3、重启，查看网络信息 [root@oracle network-scripts]# ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:29:B3:93:61 inet addr:192.168.1.202 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:feb3:9361/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2736 errors:0 dropped:0 overruns:0 frame:0 TX packets:2004 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:214479 (209.4 KiB) TX bytes:232186 (226.7 KiB) eth1 Link encap:Ethernet HWaddr 00:0C:29:B3:93:6B inet addr:192.168.80.202 Bcast:192.168.80.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:feb3:936b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:96 errors:0 dropped:0 overruns:0 frame:0 TX packets:72 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:8370 (8.1 KiB) TX bytes:4992 (4.8 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:65536 Metric:1 RX packets:18 errors:0 dropped:0 overruns:0 frame:0 TX packets:18 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1604 (1.5 KiB) TX bytes:1604 (1.5 KiB) 三、配置网卡——使用一个网卡上外网另一个网卡接入局域网 1、配置外网网卡的网关 [root@oracle network-scripts]# vim /etc/sysconfig/network NETWORKING=yes HOSTNAME=oracle.example.com GATEWAY=192.168.1.1 ##配置为外网网卡的网关 2、配置DNS可配置多个DNS，结果如下： [root@oracle network-scripts]# vim /etc/resolv.conf ; generated by /sbin/dhclient-script search localdomain oracle nameserver 192.168.1.1 nameserver 192.168.80.2 nameserver 8.8.8.8 3、配置外网网卡的IP地址外网网卡必须配置网关，结果如下： [root@oracle network-scripts]# vim /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 HWADDR=00:0C:29:B3:93:61 TYPE=Ethernet UUID=cd246f31-87fd-4a26-a070-ccc6f8ed1c7a ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=static IPADDR=192.168.1.202 PREFIX=24 GATEWAY=192.168.1.1 #网关 DNS1=192.168.1.1 DNS2=8.8.8.8 4、配置内网网卡的IP地址外网网卡不能配置网关，结果如下： [root@oracle network-scripts]# vim /etc/sysconfig/network-scripts/ifcfg-eth1 DEVICE=eth1 TYPE=Ethernet ONBOOT=yes BOOTPROTO=static IPADDR=192.168.80.202 PREFIX=24 5、重新启动网络服务重新启动网络服务，测试网络： [root@wgx network-scripts]# service network restart 正在关闭接口 eth0： [确定] 正在关闭接口 eth1： [确定] 关闭环回接口： [确定] 弹出环回接口： [确定] 弹出界面 eth0： Determining if ip address 192.168.1.201 is already in use for device eth0... [确定] 弹出界面 eth1： Determining if ip address 192.168.80.201 is already in use for device eth1... [确定] [root@wgx network-scripts]# ping www.baidu.com PING www.a.shifen.com (61.135.169.121) 56(84) bytes of data. 64 bytes from 61.135.169.121: icmp_seq=1 ttl=44 time=75.6 ms 64 bytes from 61.135.169.121: icmp_seq=2 ttl=44 time=409 ms 64 bytes from 61.135.169.121: icmp_seq=3 ttl=44 time=76.3 ms 64 bytes from 61.135.169.121: icmp_seq=4 ttl=44 time=97.1 ms 64 bytes from 61.135.169.121: icmp_seq=5 ttl=44 time=83.4 ms 64 bytes from 61.135.169.121: icmp_seq=6 ttl=44 time=77.9 ms ^C --- www.a.shifen.com ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5378ms rtt min/avg/max/mdev = 75.612/136.690/409.576/122.258 ms |
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