ZyXEL Communications USG-100@USG-200 - V2.20 ED 2 - Page 1020

Appendix B Common Services
ZyWALL USG 100/200 Series User’s Guide
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TFTP UDP 69 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).
VDOLIVE TCP 7000 Another videoconferencing solution.
Table 319 Commonly Used Services (continued)
NAME PROTOCOL PORT(S) DESCRIPTION