diff --git a/src/fw.rs b/src/fw.rs
index 88aaa86..abb6e20 100644
--- a/src/fw.rs
+++ b/src/fw.rs
@@ -54,6 +54,7 @@ pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExpo
     let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT")
         .context("Regex matching open ports encountered an unexpected rule")?;
     for i in list {
+        debug!("{} list DIPLONAT: got {}", ipt.cmd, i);
         let caps = re.captures(&i);
         match caps {
             Some(c) => {
@@ -70,7 +71,9 @@ pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExpo
                     error!("Unexpected rule found in DIPLONAT chain")
                 }
             }
-            _ => {}
+            _ => {
+                debug!("{} rule not parsed: {}", ipt.cmd, i);
+            }
         }
     }