diff --git a/Testvars.pm b/Testvars.pm
index 2a1cac8..a7fd8bb 100644
--- a/Testvars.pm
+++ b/Testvars.pm
@@ -711,9 +711,9 @@ my @netlinkdesc = (
     'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f0_-i0_-N10_-croot@lt{left}_-sroot@lt{right}_-Afdd7:e83e:66bd:10{line}1::20_-afdd7:e83e:66bd:10{line}2::40_-t10_udpsplice'	=> { ipv => "IPv6", proto => "UDP",  op => "Splice",  len => "Empty", streams => "parallel-10",  name => "linux-openbsd-linux-udp6splice-empty" },
     'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f1_-i0_-N10_-croot@lt{left}_-sroot@lt{right}_-A10.10.{line}1.20_-a10.10.{line}2.40_-t10_udpsplice'				=> { ipv => "IPv4", proto => "UDP",  op => "Splice",  len => "MTU",   streams => "parallel-10",  name => "linux-openbsd-linux-udp4splice-full" },
     'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f1_-i0_-N10_-croot@lt{left}_-sroot@lt{right}_-Afdd7:e83e:66bd:10{line}1::20_-afdd7:e83e:66bd:10{line}2::40_-t10_udpsplice'	=> { ipv => "IPv6", proto => "UDP",  op => "Splice",  len => "MTU",   streams => "parallel-10",  name => "linux-openbsd-linux-udp6splice-full" },
-    'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f1_-i0_-N10_-R10.10.{line}1.2_-S10.10.{line}1.1_-croot@lt{left}_-a234.10.{line}1.10_-t10_udpbench'		=>	{ ipv => "IPv4", proto => "MCast",  op => "Receive", len => "MTU",   streams => "parallel-10",  name => "linux-openbsd-mcast4bench-parallel-mtu" },
+    'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f1_-i0_-N10_-R{ifaddr}_-S{ifaddr}_-croot@lt{left}_-a234.10.{line}1.10_-t10_udpbench'		=>	{ ipv => "IPv4", proto => "MCast",  op => "Receive", len => "MTU",   streams => "parallel-10",  name => "linux-openbsd-mcast4bench-parallel-mtu" },
     'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f1_-i0_-N10_-R{ifname}_-S{ifname}_-croot@lt{left}_-aff34:40:fdd7:e83e:66bd:10{line}1::10_-t10_udpbench'		=>	{ ipv => "IPv6", proto => "MCast",  op => "Receive", len => "MTU",   streams => "parallel-10",  name => "linux-openbsd-mcast6bench-parallel-mtu" },
-    'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f1_-i0_-N10_-R10.10.{line}2.4_-S10.10.{line}2.3_-sroot@lt{right}_-a234.10.{line}2.10_-t10_udpbench'		=>	{ ipv => "IPv4", proto => "MCast",  op => "Send",    len => "MTU",   streams => "parallel-10",  name => "openbsd-linux-mcast4bench-parallel-mtu" },
+    'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f1_-i0_-N10_-R{ifaddr}_-S{ifaddr}_-sroot@lt{right}_-a234.10.{line}2.10_-t10_udpbench'		=>	{ ipv => "IPv4", proto => "MCast",  op => "Send",    len => "MTU",   streams => "parallel-10",  name => "openbsd-linux-mcast4bench-parallel-mtu" },
     'netbench.pl_-v_-B1000000000_-b1000000_-d1_-f1_-i0_-N10_-R{ifname}_-S{ifname}_-sroot@lt{right}_-aff34:40:fdd7:e83e:66bd:10{line}2::10_-t10_udpbench'	=>	{ ipv => "IPv6", proto => "MCast",  op => "Send",    len => "MTU",   streams => "parallel-10",  name => "openbsd-linux-mcast6bench-parallel-mtu" },
 );
 
diff --git a/netlink-html.pl b/netlink-html.pl
index 1619aa8..d8ddfc1 100755
--- a/netlink-html.pl
+++ b/netlink-html.pl
@@ -642,6 +642,8 @@ sub parse_result_files {
 	    my $logfile = "$file->{dir}/logs/$test.log";
 	    my $stats = "$file->{dir}/logs/$test.stats-netstat-diff.txt";
 	    if ($test =~ /^netbench\.pl_/) {
+		# multicast interfaces depend on test and hardware
+		$test =~ s/(?<=_-[RS])[1-9][0-9.]+_/{ifaddr}_/g;
 		$test =~ s/(?<=_-[RS])[a-z][a-z0-9.]+_/{ifname}_/g;
 	    }
 	    my $tv = $T{$test}{$date}{$hk} ||= {};