keepalived virtual_ipaddress 和網路遮罩

我有以下 keepalived.conf 文件：

vrrp_script chk_nginx {
 script "curl http://localhost/vrrp_healthcheck/"
 interval 2 # every 2 seconds
 weight 2 # add 2 points if OK
}

vrrp_instance VI_1 {
 interface ens160 # interface to monitor
 virtual_router_id 50
 priority 100
 virtual_ipaddress {
   192.168.120.25 label ens160:10
 }
 track_script {
   chk_nginx
 }
 notify /usr/local/bin/notify.sh
}

在主節點上，我在 ifconfig 輸出中看到以下內容：

ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
       inet 192.168.120.20  netmask 255.255.255.224  broadcast 192.168.120.31
       ether 00:50:56:a5:c5:3a  txqueuelen 1000  (Ethernet)
       RX packets 138308  bytes 130425415 (124.3 MiB)
       RX errors 0  dropped 73  overruns 0  frame 0
       TX packets 122917  bytes 50788591 (48.4 MiB)
       TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens160:10: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
       inet 192.168.120.25  netmask 255.255.255.255  broadcast 0.0.0.0
       ether 00:50:56:a5:c5:3a  txqueuelen 1000  (Ethernet)

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
       inet 127.0.0.1  netmask 255.0.0.0
       loop  txqueuelen 1  (Local Loopback)
       RX packets 9730  bytes 812897 (793.8 KiB)
       RX errors 0  dropped 0  overruns 0  frame 0
       TX packets 9730  bytes 812897 (793.8 KiB)
       TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

讓我擔心的是 ens160:10 條目（由 keepalived 創建的）中不同的廣播和網路地址。

這些不應該與正常界面中的匹配嗎？

目前，我的設置似乎有效，但我想確保它設置正確。

您可以簡單地將虛擬 IP 地址塊修改為：

virtual_ipaddress {
 192.168.120.25/27 label ens160:10
}

預設遮罩是/32或255.255.255.255。

引用自：https://serverfault.com/questions/859066