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PC Concepts Full-Rated Router ADSL2+ User Manual

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The NAT Global Information table, which displays the following settings that apply to all

NAT rule translations:

z

TCP Idle Timeout (sec), TCP Close Wait (sec), TCP Def Timeout (sec): When two

computers communicate via the Internet, a Transmission Control Protocol-based

communication session is created between them to control the exchange of data packets.

The TCP session can be viewed as being in one of three states, depending on the types

of packets being transferred: the establishing state, where the connection is being set up,

the active state, where the connection is being used to transfer data, and the closing

state, in which the connection is being shut down. When a NAT rule is in effect on a TCP

session in the active state, the session will timeout if no packets are received for the time

specified in TCP Idle Timeout. When in the closing state, the session will timeout if no

packets are received for the time specified in TCP Close Wait. When in the establishing

state, the session will timeout if no packets are received for the time specified in TCP Def

Timeout.

z

UDP Timeout (sec): Same as TCP Idle Timeout, but for User Datagram Protocol-based

communication sessions.

z

ICMP Timeout (sec): Same as TCP Idle Timeout, but for Internet Control Message

Protocol-based communication sessions.

z

GRE Timeout (sec): Same as TCP Idle Timeout, but for Generic Routing

Encapsulation-based communication sessions.

z

ESP Timeout (sec): Same as TCP Idle Timeout, but for Encapsulating Security

Payload-based communication sessions.

z

Default Nat Age (sec): For all other NAT translation sessions, the number of seconds for

which a NAT translation will continue to be valid if no packets are received.

z

NAPT Port Start/End: When an napt rule is defined, the source ports will be translated

to sequential numbers in this range

5.7.2 RIP

Your ADSL/Ethernet router can be configured to communicate with other routing devices

to determine the best path for sending data to its intended destination. Routing devices

communicate this information using a variety of IP protocols. This topic describes how to

configure your [Productname] to use one of these, called the Routing Information Protocol

(RIP).