diff -uNr a/fence/agents/ipmilan/fence_ipmilan.py b/fence/agents/ipmilan/fence_ipmilan.py
--- a/fence/agents/ipmilan/fence_ipmilan.py	2016-05-25 12:13:22.089965297 +0200
+++ b/fence/agents/ipmilan/fence_ipmilan.py	2016-05-25 12:13:45.266723891 +0200
@@ -155,6 +155,9 @@
 		all_opt["lanplus"]["default"] = "1"
 
 	all_opt["ipport"]["default"] = "623"
+	all_opt["method"]["help"] = "-m, --method=[method]          Method to fence (onoff|cycle) (Default: cycle)\n" \
+				    "WARNING! This fence agent might report success before the node is powered off. " \
+				    "You should use -m/method onoff if your fence device works correctly with that option."
 
 	pi = process_input(device_opt)
 	# Accept also deprecated option but do not propagate it at all
@@ -171,7 +174,9 @@
 	docs["shortdesc"] = "Fence agent for IPMI"
 	docs["longdesc"] = "fence_ipmilan is an I/O Fencing agent\
 which can be used with machines controlled by IPMI.\
-This agent calls support software ipmitool (http://ipmitool.sf.net/)."
+This agent calls support software ipmitool (http://ipmitool.sf.net/). \
+WARNING! This fence agent might report success before the node is powered off. \
+You should use -m/method onoff if your fence device works correctly with that option."
 	docs["vendorurl"] = ""
 	docs["symlink"] = [("fence_ilo3", "Fence agent for HP iLO3"),
 		("fence_ilo4", "Fence agent for HP iLO4"),
diff -uNr a/tests/data/metadata/fence_idrac.xml b/tests/data/metadata/fence_idrac.xml
--- a/tests/data/metadata/fence_idrac.xml	2016-05-25 12:13:22.089965297 +0200
+++ b/tests/data/metadata/fence_idrac.xml	2016-05-25 12:13:45.267723880 +0200
@@ -4,7 +4,7 @@
 <symlink name="fence_ilo4" shortdesc="Fence agent for HP iLO4"/>
 <symlink name="fence_imm" shortdesc="Fence agent for IBM Integrated Management Module"/>
 <symlink name="fence_idrac" shortdesc="Fence agent for Dell iDRAC"/>
-<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/).</longdesc>
+<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/). WARNING! This fence agent might report success before the node is powered off. You should use -m/method onoff if your fence device works correctly with that option.</longdesc>
 <vendor-url></vendor-url>
 <parameters>
 	<parameter name="ipport" unique="0" required="0">
diff -uNr a/tests/data/metadata/fence_ilo3.xml b/tests/data/metadata/fence_ilo3.xml
--- a/tests/data/metadata/fence_ilo3.xml	2016-05-25 12:13:22.089965297 +0200
+++ b/tests/data/metadata/fence_ilo3.xml	2016-05-25 12:13:45.267723880 +0200
@@ -4,7 +4,7 @@
 <symlink name="fence_ilo4" shortdesc="Fence agent for HP iLO4"/>
 <symlink name="fence_imm" shortdesc="Fence agent for IBM Integrated Management Module"/>
 <symlink name="fence_idrac" shortdesc="Fence agent for Dell iDRAC"/>
-<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/).</longdesc>
+<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/). WARNING! This fence agent might report success before the node is powered off. You should use -m/method onoff if your fence device works correctly with that option.</longdesc>
 <vendor-url></vendor-url>
 <parameters>
 	<parameter name="ipport" unique="0" required="0">
diff -uNr a/tests/data/metadata/fence_ilo4.xml b/tests/data/metadata/fence_ilo4.xml
--- a/tests/data/metadata/fence_ilo4.xml	2016-05-25 12:13:22.090965287 +0200
+++ b/tests/data/metadata/fence_ilo4.xml	2016-05-25 12:13:45.268723870 +0200
@@ -4,7 +4,7 @@
 <symlink name="fence_ilo4" shortdesc="Fence agent for HP iLO4"/>
 <symlink name="fence_imm" shortdesc="Fence agent for IBM Integrated Management Module"/>
 <symlink name="fence_idrac" shortdesc="Fence agent for Dell iDRAC"/>
-<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/).</longdesc>
+<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/). WARNING! This fence agent might report success before the node is powered off. You should use -m/method onoff if your fence device works correctly with that option.</longdesc>
 <vendor-url></vendor-url>
 <parameters>
 	<parameter name="ipport" unique="0" required="0">
diff -uNr a/tests/data/metadata/fence_imm.xml b/tests/data/metadata/fence_imm.xml
--- a/tests/data/metadata/fence_imm.xml	2016-05-25 12:13:22.090965287 +0200
+++ b/tests/data/metadata/fence_imm.xml	2016-05-25 12:13:45.268723870 +0200
@@ -4,7 +4,7 @@
 <symlink name="fence_ilo4" shortdesc="Fence agent for HP iLO4"/>
 <symlink name="fence_imm" shortdesc="Fence agent for IBM Integrated Management Module"/>
 <symlink name="fence_idrac" shortdesc="Fence agent for Dell iDRAC"/>
-<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/).</longdesc>
+<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/). WARNING! This fence agent might report success before the node is powered off. You should use -m/method onoff if your fence device works correctly with that option.</longdesc>
 <vendor-url></vendor-url>
 <parameters>
 	<parameter name="ipport" unique="0" required="0">
diff -uNr a/tests/data/metadata/fence_ipmilan.xml b/tests/data/metadata/fence_ipmilan.xml
--- a/tests/data/metadata/fence_ipmilan.xml	2016-05-25 12:13:22.090965287 +0200
+++ b/tests/data/metadata/fence_ipmilan.xml	2016-05-25 12:13:45.268723870 +0200
@@ -4,7 +4,7 @@
 <symlink name="fence_ilo4" shortdesc="Fence agent for HP iLO4"/>
 <symlink name="fence_imm" shortdesc="Fence agent for IBM Integrated Management Module"/>
 <symlink name="fence_idrac" shortdesc="Fence agent for Dell iDRAC"/>
-<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/).</longdesc>
+<longdesc>fence_ipmilan is an I/O Fencing agentwhich can be used with machines controlled by IPMI.This agent calls support software ipmitool (http://ipmitool.sf.net/). WARNING! This fence agent might report success before the node is powered off. You should use -m/method onoff if your fence device works correctly with that option.</longdesc>
 <vendor-url></vendor-url>
 <parameters>
 	<parameter name="ipport" unique="0" required="0">