diff --git a/src/PVE/Network/SDN/SubnetPlugin.pm b/src/PVE/Network/SDN/SubnetPlugin.pm
index 107e2f7..81adc88 100644
--- a/src/PVE/Network/SDN/SubnetPlugin.pm
+++ b/src/PVE/Network/SDN/SubnetPlugin.pm
@@ -88,9 +88,13 @@ sub validate_dhcp_ranges {
 
 	my $start_ip = Net::IP->new($dhcp_start);
 	raise_param_exc({ 'dhcp-range' => "start-address is not a valid IP $dhcp_start" }) if !$start_ip;
+	raise_param_exc({ 'dhcp-range' => "start-address must be a singular IP" }) if $start_ip->size() != 1;
+	$dhcp_range->{'start-address'} = $start_ip->ip();
 
 	my $end_ip = Net::IP->new($dhcp_end);
 	raise_param_exc({ 'dhcp-range' => "end-address is not a valid IP $dhcp_end" }) if !$end_ip;
+	raise_param_exc({ 'dhcp-range' => "end-address must be a singular IP" }) if $end_ip->size() != 1;
+	$dhcp_range->{'end-address'} = $end_ip->ip();
 
 	if ($start_ip->bincomp('gt', $end_ip)) {
 	    raise_param_exc({ 'dhcp-range' => "start-address $dhcp_start must be smaller than end-address $dhcp_end" })