Keepalived два мастера имеют виртуальный IP одновременно

Это действительно странно, на моем устройстве BACKUP всегда несколько секунд переключаются на MASTER.

Я Я уже искал, что оба мастера имеют виртуальные IP-адреса одновременно, и все решения, которые я пробовал, но все еще не работают.

Есть два способа решить эту проблему

1. Настройка приоритета в keepalived.conf

2. Брандмауэр отбросить пакет VRRP, чтобы устройство BACKUP считало, что оно должно перейти к MASTER

BACKUP.conf

global_defs {
        router_id ThinkPad  
}

vrrp_instance VRRP3 {
    state BACKUP
    interface eth0
    virtual_router_id 41
    priority 1
    advert_int 5
    authentication {
        auth_type PASS
        auth_pass 1066
    }
    virtual_ipaddress {
    172.16.100.1/16 dev eth0
    #172.16.10.1/16 dev eth0 label eth0:1
    #172.16.20.1/16 dev eth0 label eth0:2
    #172.16.30.1/16 dev eth0 label eth0:3
    }

 #   unicast_src_ip 172.16.100.2         ##source ip
 #   unicast_peer {
 #           172.16.100.1          ##dest ip
 #  }

     notify_master /etc/keepalived/ICS2.sh
     notify_backup /etc/keepalived/ICS.sh
}

MASTER.conf

global_defs {
        router_id NvidiaTx2
}

vrrp_instance VRRP1 {
    state MASTER
    interface eth0
    virtual_router_id 41
    priority 200
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1066
    }
    virtual_ipaddress {
    172.16.100.1/16 dev eth0
    #172.16.10.1/16 dev eth0 label eth0:1
    #172.16.20.1/16 dev eth0 label eth0:2
    #172.16.30.1/16 dev eth0 label eth0:3
    }

 #   unicast_src_ip 172.16.100.1         ##source ip
 #   unicast_peer {
 #           172.16.100.2          ##dest ip
 #  }

}

настройка iptables (и ufw уже отключен)

Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     112  --  0.0.0.0/0            0.0.0.0/0           
ACCEPT     112  --  0.0.0.0/0            224.0.0.18          
ACCEPT     112  --  0.0.0.0/0            224.0.0.18          

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     112  --  0.0.0.0/0            224.0.0.18          
ACCEPT     112  --  0.0.0.0/0            224.0.0.18    

tcpdump resault

root@ThinkPad:/etc/keepalived# tcpdump -i eth0 -n vrrp
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
15:41:38.864030 IP 172.16.100.1 > 224.0.0.18: VRRPv2, Advertisement, vrid 41, prio 200, authtype simple, intvl 1s, length 20
15:41:39.859616 IP 172.16.100.2 > 224.0.0.18: VRRPv2, Advertisement, vrid 41, prio 1, authtype simple, intvl 5s, length 20
15:41:40.862070 IP 172.16.100.1 > 224.0.0.18: VRRPv2, Advertisement, vrid 41, prio 200, authtype simple, intvl 1s, length 20
15:41:41.863060 IP 172.16.100.1 > 224.0.0.18: VRRPv2, Advertisement, vrid 41, prio 200, authtype simple, intvl 1s, length 20
15:41:42.863939 IP 172.16.100.1 > 224.0.0.18: VRRPv2, Advertisement, vrid 41, prio 200, authtype simple, intvl 1s, length 20
15:41:43.864744 IP 172.16.100.1 > 224.0.0.18: VRRPv2, Advertisement, vrid 41, prio 200, authtype simple, intvl 1s, length 20
15:41:44.859805 IP 172.16.100.2 > 224.0.0.18: VRRPv2, Advertisement, vrid 41, prio 1, authtype simple, intvl 5s, length 20

keepalived status

6月 13 16:11:02 ycshen-ThinkPad-E470 systemd[1]: Started LVS and VRRP High Availability Monitor.
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Registering Kernel netlink command channel
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Opening file '/etc/keepalived/keepalived.conf'.
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: WARNING - default user 'keepalived_script' for script execution does not exist - please create.
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: SECURITY VIOLATION - scripts are being executed but script_security not enabled.
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Assigned address 172.16.100.2 for interface eth0
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Registering gratuitous ARP shared channel
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: (VRRP1) removing VIPs.
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: (VRRP1) Entering BACKUP STATE (init)
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: VRRP sockpool: [ifindex(2), family(IPv4), proto(112), unicast(0), fd(11,12)]
6月 13 16:11:02 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: VRRP sockpool: [ifindex(2), family(IPv4), proto(112), unicast(0), fd(11,12)]
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: (VRRP1) Receive advertisement timeout
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: (VRRP1) Entering MASTER STATE
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: (VRRP1) setting VIPs.
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Sending gratuitous ARP on eth0 for 172.16.100.1
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: (VRRP1) Sending/queueing gratuitous ARPs on eth0 for 172.16.100.1
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Sending gratuitous ARP on eth0 for 172.16.100.1
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Sending gratuitous ARP on eth0 for 172.16.100.1
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Sending gratuitous ARP on eth0 for 172.16.100.1
6月 13 16:11:18 ycshen-ThinkPad-E470 Keepalived_vrrp[4454]: Sending gratuitous ARP on eth0 for 172.16.100.1