Keepalived backup failed to become master

Hello,

I have 2 machines running Centos6 and keepalived-1.2.7-3.el6.x86_64.

My masters dies today, and my Backup does not got the IP, even with a
network restart and even with a keepalived restart.

Follow my configuration:

Master:
========================
vrrp_instance CLUSTER {
    smtp_alert
    interface eth0
    state MASTER
    virtual_router_id 152
    priority 101
    authentication {
        auth_type PASS
        auth_pass blablabla
    }
    virtual_ipaddress {
        2xx.2xx.2xx.1xx/2x dev eth0
    }

    notify_master "/etc/keepalived/notify.sh master"
    notify_backup "/etc/keepalived/notify.sh backup"
    notify_fault  "/etc/keepalived/notify.sh fault"
}


Backup:
========================
vrrp_instance CLUSTER {
    smtp_alert
    interface eth0
    state SLAVE
    virtual_router_id 152
    priority 100
    authentication {
        auth_type PASS
        auth_pass blablabla
    }
    virtual_ipaddress {
        2xx.2xx.2xx.1xx/2x dev eth0
    }

    notify_master "/etc/keepalived/notify.sh master"
    notify_backup "/etc/keepalived/notify.sh backup"
    notify_fault  "/etc/keepalived/notify.sh fault"
}

tcpdump:
====================

# tcpdump -vvv -n -i eth0 host 224.0.0.18
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535
bytes
17:03:53.409903 IP (tos 0xc0, ttl 255, id 32557, offset 0, flags [none],
proto VRRP (112), length 40)
    2xx.2xx.2xx.9x > 224.0.0.18: VRRPv2, Advertisement, vrid 152, prio 101,
authtype simple, intvl 1s, length 20, addrs: 200.219.220.152 auth
"blablabla"
17:03:54.410375 IP (tos 0xc0, ttl 255, id 32558, offset 0, flags [none],
proto VRRP (112), length 40)
    2xx.2xx.2xx.9x > 224.0.0.18: VRRPv2, Advertisement, vrid 152, prio 101,
authtype simple, intvl 1s, length 20, addrs: 200.219.220.152
auth "blablabla"
17:03:55.410842 IP (tos 0xc0, ttl 255, id 32559, offset 0, flags [none],
proto VRRP (112), length 40)
    2xx.2xx.2xx.9x > 224.0.0.18: VRRPv2, Advertisement, vrid 152, prio 101,
authtype simple, intvl 1s, length 20, addrs: 200.219.220.152
auth "blablabla"
17:03:56.411311 IP (tos 0xc0, ttl 255, id 32560, offset 0, flags [none],
proto VRRP (112), length 40)
    2xx.2xx.2xx.9x > 224.0.0.18: VRRPv2, Advertisement, vrid 152, prio 101,
authtype simple, intvl 1s, length 20, addrs: 200.219.220.152
auth "blablabla"
17:03:57.411788 IP (tos 0xc0, ttl 255, id 32561, offset 0, flags [none],
proto VRRP (112), length 40)
    2xx.2xx.2xx.9x > 224.0.0.18: VRRPv2, Advertisement, vrid 152, prio 101,
authtype simple, intvl 1s, length 20, addrs: 200.219.220.152
auth "blablabla"

# ping master:
=============
# ping 10.65.13.95
PING 10.65.13.95 (10.65.13.95) 56(84) bytes of data.
>From 10.65.13.96 icmp_seq=2 Destination Host Unreachable
>From 10.65.13.96 icmp_seq=3 Destination Host Unreachable
>From 10.65.13.96 icmp_seq=4 Destination Host Unreachable
^C

What can I do to debug? I'm pretty sure that this configuration worked
before.

Thanks a lot.
-- 
-- Tiago Cruz

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