diff --git a/ddclient.in b/ddclient.in
index 61a7bcd..c63155b 100755
--- a/ddclient.in
+++ b/ddclient.in
@@ -1592,8 +1592,9 @@ sub _read_config {
     if ($mode & 077 && -o FD) {
         if (-f FD && (chmod 0600, $file)) {
             warning("file $file must be accessible only by its owner (fixed).");
+        } else {
+            warning("file $file must be accessible only by its owner.");
         }
-        warning("file $file must be accessible only by its owner.");
     } elsif (! -o FD && -w FD) {
         warning("file $file should be owned only by ddclient or not be writable.");
     }
@@ -3163,12 +3164,11 @@ sub get_ipv4 {
 
     } elsif ($usev4 eq 'ifv4') {
         ## Obtain IPv4 address from interface mamed in "ifv4=<if>"
-        warning("'--if-skip' is deprecated and does nothing for IPv4") if (opt('verbose') && opt('if-skip', $h));
         $ipv4 = get_ip_from_interface($arg,4);
 
     } elsif ($usev4 eq 'cmdv4') {
         ## Obtain IPv4 address by executing the command in "cmdv4=<command>"
-        warning("'--cmd-skip' is deprecated and does nothing for IPv4") if (opt('verbose') && opt('cmd-skip', $h));
+        warning("'--cmd-skip' ignored for '--usev4=$usev4'") if (opt('verbose') && opt('cmd-skip', $h));
         if ($arg) {
             my $sys_cmd = quotemeta($arg);
             $reply = qx{$sys_cmd};
@@ -3198,9 +3198,12 @@ sub get_ipv4 {
         # Stuff added to support Cisco router ip http or ASA https daemon
         # User fw-login should only have level 1 access to prevent
         # password theft.  This is pretty harmless.
-        warning("'--if' does nothing for IPv4. Use '--ifv4'") if (opt('if', $h));
-        warning("'--fw' does nothing for IPv4. Use '--fwv4'") if (opt('fw', $h));
-        warning("'--fw-skip' does nothing for IPv4. Use '--fwv4-skip'") if (opt('fw-skip', $h));
+        warning("'--if' is deprecated for '--usev4=$usev4'; use '--ifv4' instead")
+            if (!defined(opt('ifv4', $h)) && defined(opt('if', $h)));
+        warning("'--fw' is deprecated for '--usev4=$usev4'; use '--fwv4' instead")
+            if (!defined(opt('fwv4', $h)) && defiend(opt('fw', $h)));
+        warning("'--fw-skip' is deprecated for '--usev4=$usev4'; use '--fwv4-skip' instead")
+            if (!defined(opt('fwv4-skip', $h)) && defined(opt('fw-skip', $h)));
         my $queryif = opt('ifv4', $h) // opt('if', $h);
         $skip = opt('fwv4-skip', $h) // opt('fw-skip', $h) // '';
         # Convert slashes to protected value "\/"
@@ -3227,8 +3230,10 @@ sub get_ipv4 {
         $reply = '';
 
     } else {
-        warning("'--fw' does nothing for IPv4. Use '--fwv4'") if (opt('fw', $h));
-        warning("'--fw-skip' does nothing for IPv4. Use '--fwv4-skip'") if (opt('fw-skip', $h));
+        warning("'--fw' is deprecated for '--usev4=$usev4'; use '--fwv4' instead")
+            if (!defined(opt('fwv4', $h)) && defined(opt('fw', $h)));
+        warning("'--fw-skip' is deprecated for '--usev4=$usev4'; use '--fwv4-skip' instead")
+            if (!defined(opt('fwv4-skip', $h)) && defined(opt('fw-skip', $h)));
         $url  = opt('fwv4', $h) // opt('fw', $h) // '';
         $skip = opt('fwv4-skip', $h) // opt('fw-skip', $h) // '';
 
@@ -3296,7 +3301,6 @@ sub get_ipv6 {
             warning("'--usev6=if' is deprecated. Use '--usev6=ifv6'");
             $arg = opt('ifv6', $h) // $arg;
         }
-        warning("'--if-skip' is deprecated and does nothing for IPv6") if (opt('verbose') && opt('if-skip', $h));
         $ipv6 = get_ip_from_interface($arg,6);
 
     }  elsif ($usev6 eq 'cmdv6' || $usev6 eq 'cmd') {
@@ -3305,7 +3309,7 @@ sub get_ipv6 {
             warning("'--usev6=cmd' is deprecated. Use '--usev6=cmdv6'");
             $arg = opt('cmdv6', $h) // $arg;
         }
-        warning("'--cmd-skip' is deprecated and does nothing for IPv6") if (opt('verbose') && opt('cmd-skip', $h));
+        warning("'--cmd-skip' ignored for '--usev6=$usev6'") if (opt('verbose') && opt('cmd-skip', $h));
         if ($arg) {
             my $sys_cmd = quotemeta($arg);
             $reply = qx{$sys_cmd};
@@ -3318,7 +3322,8 @@ sub get_ipv6 {
             warning("'--usev6=web' is deprecated. Use '--usev6=webv6'");
             $arg = opt('webv6', $h) // $arg;
         }
-        warning("'--web-skip' does nothing for IPv6. Use '--webv6-skip'") if (opt('web-skip', $h));
+        warning("'--web-skip' ignored for '--usev6=$usev6'; use '--webv6-skip' instead")
+            if (!defined(opt('webv6-skip', $h)) && defined(opt('web-skip', $h)));
         $url = $arg;
         $skip = opt('webv6-skip', $h) // '';
         if (exists $builtinweb{$url}) {
@@ -3337,13 +3342,7 @@ sub get_ipv6 {
             ) // '';
         }
 
-    } elsif ($usev6 eq 'cisco' || $usev6 eq 'cisco-asa') {
-        warning("'--usev6=cisco' and '--usev6=cisco-asa' are not implemented and do nothing");
-        $reply = '';
-
     } elsif ($usev6 eq 'disabled') {
-        ## This is a no-op... Do not get an IPv6 address for this host/service
-        warning("'--usev6=no' is deprecated. Use '--usev6=disabled'") if ($usev6 eq 'no');
         $reply = '';
 
     } else {