-/* Check that the domain is an IP address enclosed in square brackets. If
-not, the router declines. Otherwise route to the single IP address, setting the
-host name to "(unnamed)". */
+/* Check that the domain is an IP address enclosed in square brackets. Remember
+to allow for the "official" form of IPv6 addresses. If not, the router
+declines. Otherwise route to the single IP address, setting the host name to
+"(unnamed)". */