ZyXEL Communications ZYWALL USG 20 Manual page 802

Appendix B Common Services
Table 269 Commonly Used Services (continued)
NAME
TFTP
VDOLIVE
802
PROTOCOL PORT(S)
UDP 69
TCP 7000
DESCRIPTION
Trivial File Transfer Protocol is an
Internet file transfer protocol similar
to FTP, but uses the UDP (User
Datagram Protocol) rather than TCP
(Transmission Control Protocol).
Another videoconferencing solution.
ZyWALL USG 20/20W User's Guide