if ( my $addr_block = $svc->addr_block ) {
$out .= '<br>Netmask: ' . $addr_block->NetAddr->mask .
'<br>Gateway: ' . $addr_block->ip_gateway;
}
if ( my $addr_block = $svc->addr_block ) {
$out .= '<br>Netmask: ' . $addr_block->NetAddr->mask .
'<br>Gateway: ' . $addr_block->ip_gateway;
}