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RX Packets Dropped

The number of packets that were dropped while being received, due to errors, collisions,

or router resource limitations.

Collisions

The number of packets that were dropped due to Ethernet collisions (two or more devices

attempting to use an Ethernet circuit at the same time).

Errors

The number of transmission failures that cause loss of a packet. A noisy radio-frequency

environment can cause a high error rate on the wireless LAN.

ACTIVE SESSIONS

The Active Sessions page displays full details of active Internet sessions through your router. An

Internet session is a conversation between a program or application on a LAN-side computer and

a program or application on a WAN-side computer.

Local

The IP address and, where appropriate, port number of the local application.

NAT

The port number of the LAN-side application as viewed by the WAN-side application.

Internet

The IP address and, where appropriate, port number of the application on the Internet.

Protocol

The communications protocol used for the conversation.

State

State for sessions that use the TCP protocol.

•

NO: None -- This entry is used as a placeholder for a future connection that may

occur.

•

SS: SYN Sent -- One of the systems is attempting to start a connection.

•

EST: Established -- the connection is passing data.

•

FW: FIN Wait -- The client system has requested that the connection be stopped.

•

CW: Close Wait -- the server system has requested that the connection be

stopped.

•

TW: Time Wait -- Waiting for a short time while a connection that was in FIN Wait

is fully closed.

•

LA: Last ACK -- Waiting for a short time while a connection that was in Close

Wait is fully closed.

•

CL: Closed -- The connection is no longer active but the session is being tracked

in case there are any retransmitted packets still pending.

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Dir

The direction of initiation of the conversation:

Out

Initiated from LAN to WAN.

In

Initiated from WAN to LAN.

Priority

The preference given to outbound packets of this conversation by the QoS Engine logic.

Smaller numbers represent higher priority.

Time Out

The number of seconds of idle time until the router considers the session terminated. The

initial value of Time Out depends on the type and state of the connection.

300 seconds

UDP connections.

240 seconds

Reset or closed TCP connections. The connection does not close instantly so that

lingering packets can pass or the connection can be re-established.

7800 seconds

Established or closing TCP connections.

WISH SESSIONS

The WISH Sessions page displays full details of active local wireless sessions through your

router when WISH has been enabled. A WISH session is a conversation between a program or

application on a wirelessly connected LAN-side computer and another computer, however

connected.

Originator

The IP address and, where appropriate, port number of the computer that originated a

network connection.

Target

The IP address and, where appropriate, port number of the computer to which a network

connection has been made.

Protocol

The communications protocol used for the conversation.

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State

State for sessions that use the TCP protocol.

•

NO: None -- This entry is used as a placeholder for a future connection that may

occur.

•

SS: SYN Sent -- One of the systems is attempting to start a connection.

•

EST: Established -- the connection is passing data.

•

FW: FIN Wait -- The client system has requested that the connection be stopped.

•

CW: Close Wait -- the server system has requested that the connection be

stopped.

•

TW: Time Wait -- Waiting for a short time while a connection that was in FIN Wait

is fully closed.

•

LA: Last ACK -- Waiting for a short time while a connection that was in Close

Wait is fully closed.

•

CL: Closed -- The connection is no longer active but the session is being tracked

in case there are any retransmitted packets still pending.

Priority

The priority given to packets sent wirelessly over this conversation by the WISH logic.

The priorities are:

•

BK: Background (least urgent).

•

BE: Best Effort.

•

VI: Video.

•

VO: Voice (most urgent).

Time Out

The number of seconds of idle time until the router considers the session terminated. The

initial value of Time Out depends on the type and state of the connection.

300 seconds

UDP connections.

240 seconds

Reset or closed TCP connections. The connection does not close instantly so that

lingering packets can pass or the connection can be re-established.

7800 seconds

Established or closing TCP connections.

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HELP GLOSSARY

8

802.11

A family of specifications for wireless local area networks (WLANs) developed by a

working group of the Institute of Electrical and Electronics Engineers (IEEE).

A

Access Control List

ACL. This is a database of network devices that are allowed to access resources on the

network.

Access Point

AP. Device that allows wireless clients to connect to it and access the network

ActiveX

A Microsoft specification for the interaction of software components.

Address Resolution Protocol

ARP. Used to map MAC addresses to IP addresses so that conversions can be made in

both directions.

Ad-hoc network

Peer-to-Peer network between wireless clients

ADSL

Asymmetric Digital Subscriber Line

Advanced Encryption Standard

AES. Government encryption standard

Alphanumeric

Characters A-Z and 0-9

Antenna

Used to transmit and receive RF signals.

AppleTalk

A set of Local Area Network protocols developed by Apple for their computer systems

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AppleTalk Address Resolution Protocol

AARP. Used to map the MAC addresses of Apple computers to their AppleTalk network

addresses, so that conversions can be made in both directions.

Application layer

7th Layer of the OSI model. Provides services to applications to ensure that they can

communicate properly with other applications on a network.

ASCII

American Standard Code for Information Interchange. This system of characters is most

commonly used for text files

Attenuation

The loss in strength of digital and analog signals. The loss is greater when the signal is

being transmitted over long distances.

Authentication

To provide credentials, like a Password, in order to verify that the person or device is

really who they are claiming to be

Automatic Private IP Addressing

APIPA. An IP address that that a Windows computer will assign itself when it is

configured to obtain an IP address automatically but no DHCP server is available on the

network

B

Backward Compatible

The ability for new devices to communicate and interact with older legacy devices to

guarantee interoperability

Bandwidth

The maximum amount of bytes or bits per second that can be transmitted to and from a

network device

Basic Input/Output System

BIOS. A program that the processor of a computer uses to startup the system once it is

turned on

Baud

Data transmission speed

Beacon

A data frame by which one of the stations in a Wi-Fi network periodically broadcasts

network control data to other wireless stations.