宿主機：Red Hat Enterprise Linux Server release 7.3
kvm 虛擬機使用橋接網路
宿主機網路配置：
cat ifcfg-ens192
BOOTPROTO=none
DEVICE=ens192
NM_CONTROLLED=no
ONBOOT=yes
BRIDGE=br0
-----------------------------------------------------------------------------------------------
cat ifcfg-br0
BOOTPROTO=static
DEVICE=br0
TYPE=Bridge
NM_CONTROLLED=no
IPADDR=192.168.1.214
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
ONBOOT=yes
-----------------------------------------------------------------------------------------------
虛擬機網路配置
cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=none
IPADDR=192.168.1.215
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
-----------------------------------------------------------------------------------------------
brctl show
bridge name bridge id STP enabled interfaces
br0 8000.0050568cdf22 no ens192
vnet0
-----------------------------------------------------------------------------------------------
virsh list
Id Name State
----------------------------------------------------
1 centos6.6 running
-----------------------------------------------------------------------------------------------
virsh edit centos6.6
<interface type='bridge'>
<mac address='52:54:00:d6:7e:cc'/>
<source bridge='br0'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
-----------------------------------------------------------------------------------------------
cat /proc/sys/net/ipv4/ip_forward
1
-----------------------------------------------------------------------------------------------
物理機route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default gateway 0.0.0.0 UG 0 0 0 br0
link-local 0.0.0.0 255.255.0.0 U 1003 0 0 br0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 br0
-----------------------------------------------------------------------------------------------
虛擬機route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 1002 0 0 eth0
default 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
-----------------------------------------------------------------------------------------------
問題現象描述:
宿主機IP 192.168.1.214
虛擬機IP 192.168.1.215 手動設定
宿主機可以ping通網關可以通外網可ping通虛擬機
虛擬機可以ping通宿主機無法ping通網關及外網
uj5u.com熱心網友回復：
虛擬網卡用的橋接模式？uj5u.com熱心網友回復：
把虛擬機網卡設定成動態ip，查看網段是否有問題。uj5u.com熱心網友回復：
嘗試一下，新增一個網卡，然后將他配置成dhcp模式，重啟一下機器，再重啟一個路由器。感覺是配置靜態ip的時候，網卡的mac地址沒有被路由器捕獲到。轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/118939.html
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