diff --git a/Shorewall/Perl/Shorewall/Rules.pm b/Shorewall/Perl/Shorewall/Rules.pm
index 8c902fe9c..2cf3fb220 100644
--- a/Shorewall/Perl/Shorewall/Rules.pm
+++ b/Shorewall/Perl/Shorewall/Rules.pm
@@ -344,14 +344,21 @@ sub new_policy_chain($$$$$)
 #
 # Set the passed chain's policychain and policy to the passed values.
 #
-sub set_policy_chain($$$$$)
+sub set_policy_chain($$$$$$)
 {
-    my ($source, $dest, $chain1, $chainref, $policy ) = @_;
+    my ($source, $dest, $chain1, $chainref, $policy, $intrazone) = @_;
 
     my $chainref1 = $filter_table->{$chain1};
 
     $chainref1 = new_rules_chain $chain1 unless $chainref1;
 
+    if ( $intrazone       &&
+	 $source eq $dest &&
+	 $chainref1->{provisional} ) {
+	$chainref1->{policychain} = '';
+	$chainref1->{provisional} = '';
+    }
+
     unless ( $chainref1->{policychain} ) {
 	if ( $config{EXPAND_POLICIES} ) {
 	    #
@@ -477,11 +484,13 @@ sub process_a_policy() {
     fatal_error 'DEST must be specified'   if $server eq '-';
     fatal_error 'POLICY must be specified' if $originalpolicy eq '-';
 
-    my $clientwild = ( "\L$client" eq 'all' );
+    my $clientwild = ( "\L$client" =~ /^all(\+)?$/ );
+    my $intrazone  = $clientwild && $1;
 
     fatal_error "Undefined zone ($client)" unless $clientwild || defined_zone( $client );
 
-    my $serverwild = ( "\L$server" eq 'all' );
+    my $serverwild = ( "\L$server" =~ /^all(\+)?/ );
+    $intrazone ||= $serverwild && $1;
 
     fatal_error "Undefined zone ($server)" unless $serverwild || defined_zone( $server );
 
@@ -568,19 +577,19 @@ sub process_a_policy() {
 	if ( $serverwild ) {
 	    for my $zone ( @zonelist ) {
 		for my $zone1 ( @zonelist ) {
-		    set_policy_chain $client, $server, rules_chain( ${zone}, ${zone1} ), $chainref, $policy;
+		    set_policy_chain $client, $server, rules_chain( ${zone}, ${zone1} ), $chainref, $policy, $intrazone;
 		    print_policy $zone, $zone1, $policy, $chain;
 		}
 	    }
 	} else {
 	    for my $zone ( all_zones ) {
-		set_policy_chain $client, $server, rules_chain( ${zone}, ${server} ), $chainref, $policy;
+		set_policy_chain $client, $server, rules_chain( ${zone}, ${server} ), $chainref, $policy, $intrazone;
 		print_policy $zone, $server, $policy, $chain;
 	    }
 	}
     } elsif ( $serverwild ) {
 	for my $zone ( @zonelist ) {
-	    set_policy_chain $client, $server, rules_chain( ${client}, ${zone} ), $chainref, $policy;
+	    set_policy_chain $client, $server, rules_chain( ${client}, ${zone} ), $chainref, $policy, $intrazone;
 	    print_policy $client, $zone, $policy, $chain;
 	}
 
diff --git a/Shorewall/manpages/shorewall-policy.xml b/Shorewall/manpages/shorewall-policy.xml
index e22f19266..8752d2678 100644
--- a/Shorewall/manpages/shorewall-policy.xml
+++ b/Shorewall/manpages/shorewall-policy.xml
@@ -59,26 +59,39 @@
       <varlistentry>
         <term><emphasis role="bold">SOURCE</emphasis> -
         <emphasis>zone</emphasis>|<emphasis
-        role="bold">$FW</emphasis>|<emphasis role="bold">all</emphasis></term>
+        role="bold">$FW</emphasis>|<emphasis
+        role="bold">all</emphasis>|<emphasis
+        role="bold">all+</emphasis></term>
 
         <listitem>
           <para>Source zone. Must be the name of a zone defined in <ulink
-          url="shorewall-zones.html">shorewall-zones</ulink>(5), $FW or
-          "all".</para>
+          url="shorewall-zones.html">shorewall-zones</ulink>(5), $FW, "all" or
+          "all+".</para>
+
+          <para>Support for "all+" was added in Shorewall 4.5.17. "all" does
+          not override the implicit intra-zone ACCEPT policy while "all+"
+          does. </para>
         </listitem>
       </varlistentry>
 
       <varlistentry>
         <term><emphasis role="bold">DEST</emphasis> -
         <emphasis>zone</emphasis>|<emphasis
-        role="bold">$FW</emphasis>|<emphasis role="bold">all</emphasis></term>
+        role="bold">$FW</emphasis>|<emphasis
+        role="bold">all</emphasis>|<emphasis
+        role="bold">all+</emphasis></term>
 
         <listitem>
           <para>Destination zone. Must be the name of a zone defined in <ulink
-          url="shorewall-zones.html">shorewall-zones</ulink>(5), $FW or "all".
-          If the DEST is a bport zone, then the SOURCE must be "all", another
-          bport zone associated with the same bridge, or it must be an ipv4
-          zone that is associated with only the same bridge.</para>
+          url="shorewall-zones.html">shorewall-zones</ulink>(5), $FW, "all" or
+          "all+". If the DEST is a bport zone, then the SOURCE must be "all",
+          "all+", another bport zone associated with the same bridge, or it
+          must be an ipv4 zone that is associated with only the same
+          bridge.</para>
+
+          <para>Support for "all+" was added in Shorewall 4.5.17. "all" does
+          not override the implicit intra-zone ACCEPT policy while "all+"
+          does. </para>
         </listitem>
       </varlistentry>
 
diff --git a/Shorewall6/manpages/shorewall6-policy.xml b/Shorewall6/manpages/shorewall6-policy.xml
index bbeb6d8fa..64c8d3e67 100644
--- a/Shorewall6/manpages/shorewall6-policy.xml
+++ b/Shorewall6/manpages/shorewall6-policy.xml
@@ -59,26 +59,39 @@
       <varlistentry>
         <term><emphasis role="bold">SOURCE</emphasis> -
         <emphasis>zone</emphasis>|<emphasis
-        role="bold">$FW</emphasis>|<emphasis role="bold">all</emphasis></term>
+        role="bold">$FW</emphasis>|<emphasis
+        role="bold">all</emphasis>|<emphasis
+        role="bold">all+</emphasis></term>
 
         <listitem>
           <para>Source zone. Must be the name of a zone defined in <ulink
-          url="shorewall6-zones.html">shorewall6-zones</ulink>(5), $FW or
-          "all".</para>
+          url="shorewall-zones.html">shorewall-zones</ulink>(5), $FW, "all" or
+          "all+".</para>
+
+          <para>Support for "all+" was added in Shorewall 4.5.17. "all" does
+          not override the implicit intra-zone ACCEPT policy while "all+"
+          does.</para>
         </listitem>
       </varlistentry>
 
       <varlistentry>
         <term><emphasis role="bold">DEST</emphasis> -
         <emphasis>zone</emphasis>|<emphasis
-        role="bold">$FW</emphasis>|<emphasis role="bold">all</emphasis></term>
+        role="bold">$FW</emphasis>|<emphasis
+        role="bold">all</emphasis>|<emphasis
+        role="bold">all+</emphasis></term>
 
         <listitem>
           <para>Destination zone. Must be the name of a zone defined in <ulink
-          url="shorewall6-zones.html">shorewall6-zones</ulink>(5), $FW or
-          "all". If the DEST is a bport zone, then the SOURCE must be "all",
-          another bport zone associated with the same bridge, or it must be an
-          ipv6 zone that is associated with only the same bridge.</para>
+          url="shorewall-zones.html">shorewall-zones</ulink>(5), $FW, "all" or
+          "all+". If the DEST is a bport zone, then the SOURCE must be "all",
+          "all+", another bport zone associated with the same bridge, or it
+          must be an ipv4 zone that is associated with only the same
+          bridge.</para>
+
+          <para>Support for "all+" was added in Shorewall 4.5.17. "all" does
+          not override the implicit intra-zone ACCEPT policy while "all+"
+          does.</para>
         </listitem>
       </varlistentry>