checking in- needs some refinement then done

netsplit/funcs_ianaregistryfootnote.go

@@ -0,0 +1,27 @@
+package netsplit
+
+import (
+	`encoding/xml`
+	`strconv`
+)
+
+func (i *IANARegistryFootnote) UnmarshalXML(d *xml.Decoder, start xml.StartElement) (err error) {
+
+	var u64 uint64
+
+	for _, a := range start.Attr {
+		switch a.Name.Local {
+		case "anchor":
+			if u64, err = strconv.ParseUint(a.Value, 10, 64); err != nil {
+				return
+			}
+			i.ReferenceIdx = uint(u64)
+		}
+	}
+
+	if err = d.DecodeElement(&i.Note, &start); err != nil {
+		return
+	}
+
+	return
+}