fix exception handling on fw.rs

src/fw.rs

@@ -111,7 +111,12 @@ pub fn fwblock(
     // validate and send batch
     for b in [batch4, batch6] {
         let bf = b.finalize();
-        send_and_process(&bf).unwrap();
+        match send_and_process(&bf) {
+            Ok(_) => {}
+            Err(e) => {
+                println!("error sending batch: {e}");
+            }
+        };
     }
     if fwlen != &mut ips_add.len() {
         ret.push(format!("{length} ip in firewall", length = ips_add.len()));