在 CentOS 7 上為 Xen 設置橋接網絡
警告:在更改網絡前,請確保你不用依靠網絡亦能存取目標系統,供出錯時用。
首先,尋找你的主網絡裝置:
ip route show | grep 'default' | awk '{print $5}'
一般來說這是 eth0。本指引接下來假設你想建立一個名叫 xenbr0 的橋接器,並將 eth0 設成它的從屬裝置。
首先,建立 xenbr0,並給它適當的預設值:
nmcli con add type bridge con-name xenbr0 ifname xenbr0 nmcli con modify xenbr0 bridge.stp no nmcli con modify xenbr0 bridge.hello-time 0
然後找出 eth0 的接線名稱。一般來說這是 System eth0:
# nmcli con show NAME UUID TYPE DEVICE System eth0 1619a4a0-518e-4547-9ade-31dff5ef8f5e 802-3-ethernet eth0
最後,把 System eth0 設成 xenbr0 的從屬裝置:
nmcli con modify "System eth0" connection.master xenbr0 connection.slave-type bridge
接著重新啟動網絡:
systemctl restart network
檢查設定是否已完成:
# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master xenbr0 state UP qlen 1000 link/ether 30:5b:d6:f1:d6:a2 brd ff:ff:ff:ff:ff:ff 4: xenbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP link/ether 30:5b:d6:f1:d6:a2 brd ff:ff:ff:ff:ff:ff inet 10.80.237.209/20 brd 10.80.239.255 scope global dynamic xenbr0 valid_lft 1798sec preferred_lft 1798sec inet6 fe80::325b:d6ff:fef1:d6a2/64 scope link valid_lft forever preferred_lft forever
Translation of revision 2