from
21/tcp is open, was filtered.
23/tcp is open, was filtered.
80/tcp is open, was filtered.
8701/tcp is filtered, was open.
to
-21/tcp filtered
+21/tcp open ftp Netgear broadband router ftpd 1.0
-23/tcp filtered
+23/tcp open telnet Netgear broadband router admin telnetd
-80/tcp filtered
+80/tcp open http Embedded Allegro RomPager webserver 4.07 UPnP/1.0 (ZyXEL ZyWALL 2)
-8701/tcp open unknown
+8701/tcp filtered