Attached patch to implement the functionality.
It is supposed to be applied to version 1.2.2-3.
Kind regards
Marc
diff -r -u keepalived-1.2.2/doc/man/man5/keepalived.conf.5 keepalived-1.2.2.new/doc/man/man5/keepalived.conf.5
--- keepalived-1.2.2/doc/man/man5/keepalived.conf.5 2011-05-29 10:19:59.000000000 +0000
+++ keepalived-1.2.2.new/doc/man/man5/keepalived.conf.5 2012-08-09 09:32:29.548371841 +0000
@@ -172,6 +172,13 @@
# Binding interface for lvs syncd
lvs_sync_daemon_interface eth1
+ # keepalived will normally send GARP (gratuitous ARP)
+ # packets to the network for every IP address it
+ # takes over on transition to the MASTER state.
+ # "nogarp" inhibits creation of GARP packets for this
+ # VRRP instance.
+ nogarp
+
# delay for gratuitous ARP after transition to MASTER
garp_master_delay 10 # secs, default 5
diff -r -u keepalived-1.2.2/keepalived/include/vrrp.h keepalived-1.2.2.new/keepalived/include/vrrp.h
--- keepalived-1.2.2/keepalived/include/vrrp.h 2011-05-29 10:19:59.000000000 +0000
+++ keepalived-1.2.2.new/keepalived/include/vrrp.h 2012-08-08 12:21:17.833015722 +0000
@@ -111,6 +111,9 @@
list vroutes; /* list of virtual routes */
int adver_int; /* delay between advertisements(in sec) */
int nopreempt; /* true if higher prio does not preempt lower */
+ int nogarp; /* true if creation of GARP packets
+ * is not desired
+ */
long preempt_delay; /* Seconds*TIMER_HZ after startup until
* preemption based on higher prio over lower
* prio is allowed. 0 means no delay.
diff -r -u keepalived-1.2.2/keepalived/vrrp/vrrp.c keepalived-1.2.2.new/keepalived/vrrp/vrrp.c
--- keepalived-1.2.2/keepalived/vrrp/vrrp.c 2011-05-29 10:19:59.000000000 +0000
+++ keepalived-1.2.2.new/keepalived/vrrp/vrrp.c 2012-08-09 09:32:07.560366984 +0000
@@ -660,6 +660,10 @@
char *msg;
char addr_str[41];
+ /* do not send GARP if configured not to */
+ if (vrrp->nogarp)
+ return;
+
if (!IP_IS6(ipaddress)) {
msg = "gratuitous ARPs";
inet_ntop(AF_INET, &ipaddress->u.sin.sin_addr, addr_str, 41);
@@ -683,6 +687,10 @@
ip_address *ipaddress;
element e;
+ /* do not send GARP if configured not to */
+ if (vrrp->nogarp)
+ return;
+
/* Only send gratuitous ARP if VIP are set */
if (!VRRP_VIP_ISSET(vrrp))
return;
diff -r -u keepalived-1.2.2/keepalived/vrrp/vrrp_parser.c keepalived-1.2.2.new/keepalived/vrrp/vrrp_parser.c
--- keepalived-1.2.2/keepalived/vrrp/vrrp_parser.c 2011-05-29 10:19:59.000000000 +0000
+++ keepalived-1.2.2.new/keepalived/vrrp/vrrp_parser.c 2012-08-08 12:19:30.289013755 +0000
@@ -289,6 +289,12 @@
vrrp->garp_delay = atoi(VECTOR_SLOT(strvec, 1)) * TIMER_HZ;
}
static void
+vrrp_nogarp_handler(vector strvec)
+{
+ vrrp_rt *vrrp = LIST_TAIL_DATA(vrrp_data->vrrp);
+ vrrp->nogarp = 1;
+}
+static void
vrrp_auth_type_handler(vector strvec)
{
vrrp_rt *vrrp = LIST_TAIL_DATA(vrrp_data->vrrp);
@@ -446,6 +452,7 @@
install_keyword("smtp_alert", &vrrp_smtp_handler);
install_keyword("lvs_sync_daemon_interface", &vrrp_lvs_syncd_handler);
install_keyword("garp_master_delay", &vrrp_garp_delay_handler);
+ install_keyword("nogarp", &vrrp_nogarp_handler);
install_keyword("authentication", NULL);
install_sublevel();
install_keyword("auth_type", &vrrp_auth_type_handler);
