Package: keepalived
Version: 1.2.13-1
Severity: normal
Hi !
I want to use vrrp_garp_master_refresh to make sure my firewall is aware
of every switch between the slave and the master (we had at least one
incident when it was not the case).
When I put vrrp_garp_master_refresh 10 in the global_defs section,
nothing happen.
When I restart the service, I don't see the parameters in the dumped
configuration :
Keepalived_vrrp[36970]: ------< Global definitions >------
Keepalived_vrrp[36970]: Router ID = xxxxxxxx
Keepalived_vrrp[36970]: Smtp server = 127.0.0.1
Keepalived_vrrp[36970]: Smtp server connection timeout = 30
Keepalived_vrrp[36970]: Email notification from =
x...@blue-solutions.com
Keepalived_vrrp[36970]: Email notification = x...@polyconseil.fr
Keepalived_vrrp[36970]: Email notification = x...@polyconseil.fr
Keepalived_vrrp[36970]: VRRP IPv4 mcast group = 224.0.0.18
Keepalived_vrrp[36970]: VRRP IPv6 mcast group = 224.0.0.18
Keepalived_vrrp[36970]: SNMP Trap disabled
And if I use tcpdump to check the GARP, there is nothing to see.
However, when I stop keepalived on the master server, I can see the garp
request sent during the switch :
tcpdump -nteli any arp
ethertype ARP Request who-has xxx.xx.xx.xx (ff:ff:ff:ff:ff:ff) tell
xxx.xx.xx.xx, length 46
ethertype ARP Request who-has yyy.yy.y.yy (ff:ff:ff:ff:ff:ff) tell
yyy.yy.y.yy, length 46
I thought I would see this king of request every 10 seconds using
"vrrp_garp_master_refresh 10". Am I misunderstanding something ?
Official documentation :
global_defs { # Block identification
notification_email {
...
}
...
vrrp_garp_master_refresh <INTEGER> # Periodic delay in seconds
# sending gratuitous ARP while in MASTER state
# Default: 0 (no refreshing)
vrrp_garp_master_refresh_repeat <INTEGER> # how many gratuitous
ARP messages shoule be sent
# at each periodic repeat
# Default: once (per period)
}
Here is my full keepalived.conf file :
global_defs {
notification_email {
x...@polyconseil.fr
x...@polyconseil.fr
}
notification_email_from x...@blue-solutions.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
vrrp_garp_master_refresh 10
}
vrrp_script 23c1ddc2-8091-5efc-aecc-9dd80657bfe0 {
script "killall -0 haproxy"
interval 2
fall 2
rise 4
}
vrrp_sync_group sync-group {
group {
ws-bi-vrrp
ws-lb-vrrp
}
}
vrrp_instance ws-bi-vrrp {
interface eth2
state BACKUP
nopreempt
advert_int 2
virtual_router_id 16
smtp_alert
priority 118
authentication {
auth_type PASS
auth_pass xxxxxxxxxx
}
track_interface {
eth2
}
virtual_ipaddress {
xxx.xx.xx.xx
}
track_script {
23c1ddc2-8091-5efc-aecc-9dd80657bfe0
}
}
vrrp_instance ws-lb-vrrp {
interface eth1
state BACKUP
nopreempt
advert_int 2
virtual_router_id 20
smtp_alert
priority 118
authentication {
auth_type PASS
auth_pass xxxxxxxxxx
}
track_interface {
eth1
eth2
}
virtual_ipaddress {
yyy.yy.y.yy
}
track_script {
23c1ddc2-8091-5efc-aecc-9dd80657bfe0
}
}
Best regards,
-- System Information:
Debian Release: 8.2
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
--
*Christian PATRY*
*BlueSolutions@Polyconseil* | 26 rue de Berri, 75008 Paris
