diff --git a/sample-etc_ddclient.conf b/sample-etc_ddclient.conf
index d1e1761..8ef3fbe 100644
--- a/sample-etc_ddclient.conf
+++ b/sample-etc_ddclient.conf
@@ -226,7 +226,10 @@ ssl=yes					# use ssl-support.  Works with
 ## 
 # protocol=dyndns2
 # ssl=yes
+# # ipv6=yes # optional
 # use=web, web=myonlineportal.net/checkip
+# # use=if, if=eth0     # alternative to use=web
+# # if-skip=Scope:Link  # alternative to use=web
 # login=your-myonlineportal-username
 # password=your-myonlineportal-password
 # domain.myonlineportal.net