Modecom MC-421 User Manual page 123

TFTP
TKIP
triggers
twisted pair
unnumbered interfaces
upstream
VC
Trivial File Transfer Protocol
A protocol for file transfers, TFTP is easier to use than File Transfer Protocol (FTP) but
not as capable or secure.
Temporal Key Integrity Protocol (TKIP) provides WPA with a data encryption func-
tion. It ensures that a unique master key is generated for each packet, supports
message integrity and sequencing rules and supports re-keying mechanisms.
Triggers are used to deal with application protocols that create separate sessions.
Some applications, such as NetMeeting, open secondary connections during nor-
mal operations, for example, a connection to a server is established using one port,
but data transfers are performed on a separate connection. A trigger tells the devi-
ce to expect these secondary sessions and how to handle them.
Once you set a trigger, the embedded IP address of each incoming packet is repla-
ced by the correct host address so that NAT can translate packets to the correct de-
stination. You can specify whether you want to carry out address replacement, and
if so, whether to replace addresses on TCP packets only, UDP packets only, or both.
The ordinary copper telephone wiring used by telephone companies. It contains
one or more wire pairs twisted together to reduce inductance and noise. Each te-
lephone line uses one pair. In homes, it is most often installed with two pairs. For
Ethernet LANs, a higher grade called Category 3 (CAT 3) is used for 10BASE-T ne-
tworks, and an even higher grade called Category 5 (CAT 5) is used for 100BASE-T
networks. See 10BASE-T, 100BASE-T, Ethernet.
An unnumbered interface is an IP interface that does not have a local subnet asso-
ciated with it. Instead, it uses a router-id that serves as the source and destination
address of packets sent to and from the router. Unlike the IP address of a normal
interface, the router-id of an unnumbered interface is allowed to be the same as
the IP address of another interface. For example, the WAN unnumbered interface of
your device uses the same IP address of the LAN interface (10.0.0.2).
The unnumbered interface is temporary – PPP or DHCP will assign a 'real' IP address
automatically.
The direction of data transmission from the user to the Internet.
Virtual Circuit
A connection from your DSL router to your ISP.
WLAN Router
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