SmartShare DT-10 Manuel utilisateur

SmartShare®User Manual

User Manual

RM-20, RM-50, RM-100, RM-200, RM-500,

RM-1000

DT-5, DT-10, DT-20, DT-50

Firmware: 1.11

SmartShare®User Manual

– 1 –

Introduction

The SmartShare®is an integrated bandwidth manager and NAT router with built-

in DHCP server and optional anti terror logger. The SmartShare can supplement an

existing Internet router or replace a traditional NAT router.

Key Features

Bandwidth Manager with User Load Balancing and Dynamic QOS. The patent

pending SmartShare bandwidth management technology automatically monitors and

manages the Internet connection, so every active user on the local network gets a fair

amount of the shared Internet bandwidth, and ensures that the Internet connection

always is available for all users on the local network. It also optimizes the use of

bandwidth, so the Internet connection can be fully utilized, regardless of the number

of active users – if only one user is active, that one user gets all the bandwidth. The

Dynamic Quality of Service (Dynamic QOS) technology ensures that IP telephony

and online gaming is not affected by other applications.

NAT Router with Individual IP Routing, SPI Firewall and Port Forwarding. The

network address translation (NAT) technology makes it possible for multiple PCs to

share a single Internet IP address, by translating the individual IP addresses of each

PC on the local network to the shared IP address and keeping track of each

translation, thereby maintaining the connection from each PC on the local network to

the Internet. Combined with individual IP routing, dedicated PCs on the local network

can use public IP addresses, thus bypassing the NAT. The stateful packet inspection

(SPI) firewall ensures that no PC outside the local network can establish a connection

to any PC on the local network, and thus protects the PCs on the local network from

intruders coming from the Internet. With port forwarding, specific servers on the local

network can be accessed from the Internet, so e.g. a public web server can be set up

on the local network.

DHCP Server. The DHCP server technology automatically assigns the required

network information to the PCs on the local network. This means that the users do not

have to worry about configuring their PCs with the correct IP address, netmask,

gateway and DNS servers.

Anti Terror Logger (firmware option). The anti terror logger (ATL) technology

collects and records information about Internet traffic flows of individual users as

required by EU and Danish legislation.

Developed in Denmark.

Made in Taiwan.

SmartShare Systems

Marielundvej 46 B

DK-2730 Herlev

Denmark

www.smartsharesystems.com

Patents pending. SmartShare®and Network Overclocking®are registered trademarks.

SmartShare®User Manual

– 2 –

Table of Contents

Introduction....................................................................................................................1

Key Features ..............................................................................................................1

Table of Contents...........................................................................................................2

Installation Guide...........................................................................................................4

1. Connect to the local network equipment ...............................................................4

2. Start the setup menu...............................................................................................4

3. Configure the Internet connection .........................................................................4

4. Connect to the Internet equipment.........................................................................4

5. Test the configured Internet connection speed ......................................................4

The SmartShare Bandwidth Management System ........................................................5

User Load Balancing..................................................................................................5

User Identification .................................................................................................5

Overflow Users......................................................................................................5

Download and Upload Limiters.................................................................................5

Dynamic Quality of Service.......................................................................................6

Flow Management .....................................................................................................6

LowLatency Network Overclocking®........................................................................6

Status menu....................................................................................................................7

System........................................................................................................................7

WAN..........................................................................................................................7

Bandwidth Usage.......................................................................................................7

Bandwidth Manager...................................................................................................7

Anti Terror Logger.....................................................................................................8

Internet/WAN (Wide Area Network) configuration menu............................................9

Internet Service Provider connection type.................................................................9

WAN with Static IP...............................................................................................9

WAN with DHCP..................................................................................................9

WAN with PPPoE..................................................................................................9

Connection Speed ......................................................................................................9

External Servers (optional)......................................................................................10

NTP Server...........................................................................................................10

LAN (Local Area Network) configuration menu ........................................................10

Network Setup .........................................................................................................10

IP Address Range.....................................................................................................10

Local DNS Servers (optional)..................................................................................10

Local NTP Server (optional)....................................................................................10

Built-in DHCP Server..............................................................................................10

NAPT (Network Address and Port Translation) configuration menu .........................11

Port Forwarding to Local Servers............................................................................11

All Ports Forwarding to Local Servers ....................................................................11

ATL (Anti Terror Logger) configuration menu...........................................................11

Log File Storage.......................................................................................................11

Local Network SNMP Agents.................................................................................11

Advanced configuration menu.....................................................................................12

Remote Management...............................................................................................12

Router Mode ............................................................................................................12

Network Features.....................................................................................................12

VoIP Extra Priority..............................................................................................12

LowLatency Network Overclocking....................................................................12

SmartShare®User Manual

– 3 –

DHCP Proxy ............................................................................................................12

Built-in DHCP Server Options ................................................................................12

Outgoing SMTP Connections..................................................................................13

Allow All .............................................................................................................13

Allow to External Server only .............................................................................13

Redirect all to External Server.............................................................................13

Allow from Local Mail Servers only...................................................................13

System Information..................................................................................................13

Bandwidth User Groups...........................................................................................14

Additional LAN Subnets..........................................................................................14

User Groups Denied Access to WAN......................................................................14

System menu................................................................................................................15

Download Firmware ................................................................................................15

Install License Key ..................................................................................................15

Trial Mode ...............................................................................................................15

Restore Factory Defaults..........................................................................................15

Reboot System.........................................................................................................15

Managers configuration menu .....................................................................................16

Logout menu................................................................................................................16

Using the Serial Port....................................................................................................16

Security Considerations...............................................................................................17

Physical Access........................................................................................................17

Password Protection.................................................................................................17

Firewall....................................................................................................................17

Protecting Local Users from Each Other.................................................................17

Troubleshooting and FAQ ...........................................................................................17

Power Consumption.....................................................................................................18

LED Indicators.............................................................................................................19

Glossary .......................................................................................................................19

SmartShare®User Manual

– 4 –

Installation Guide

1. Connect to the local network equipment

Connect the LAN port on the SmartShare to any Ethernet port on the local network

switch, using a straight Ethernet patch cable.

2. Start the setup menu

Use a web browser on a PC connected to the local network to start the setup menu in

the SmartShare.

The setup menu address is: http://192.168.2.1/

The factory default administrator user name is: admin and password: admin

3. Configure the Internet connection

Go to the WAN page and configure the Internet connection and enter the download

and upload speeds in Kbit/s.

The information that must be entered on the WAN page must be obtained from the

Internet service provider (ISP). The ISP usually supplies this information in a letter

accompanying the confirmation of the Internet subscription.

Please note that the connection speed advertised by most Internet service providers

are the gross speeds, while the settings in the SmartShare must be entered as the net

speeds, which means that the settings may need some adjustment to compensate for

the difference.

Entering the speeds as 80% of the ISP’s advertised speeds is a good rule of thumb.

Go to the Save page to save and activate the new settings.

4. Connect to the Internet equipment

Connect the WAN port on the SmartShare to the Ethernet LAN port on the Internet

modem, using a straight Ethernet patch cable.

5. Test the configured Internet connection speed

Test that the download speed settings are correct by downloading from a very fast

server on the Internet from two PCs simultaneously. Go to the Status page and check

that the Download Limiter status changes from READY to ACTIVE while the

download connection is saturated. If it does not change, try decreasing the download

speed entered on the WAN page by 10-30%. Keep testing and decreasing the values

until satisfied.

Test that the upload speed settings are correct by uploading to a very fast server on the

Internet from two PCs simultaneously, while monitoring the Upload Limiter status.

SmartShare®User Manual

– 5 –

The SmartShare Bandwidth Management System

This section describes the SmartShare bandwidth management system in details, and

is written for network experts only.

User Load Balancing

Conventional routers simply forward all packets to/from users in the same order the

packets arrive at the router, so the users with a lot of packets get a larger share of the

available bandwidth than the users with fewer packets.

The SmartShare User Load Balancer intelligently forwards packets to/from individual

users in turn, so every user gets a reasonable share of the available bandwidth.

User Identification

The SmartShare identifies individual users by their IP address presented to the LAN

interface on the SmartShare. This also means that if a group of users in an apartment

shares the apartment’s network connection through another NAT router in the

apartment, they will be treated as one single user, because that NAT router only

presents one IP address to the SmartShare.

The IP address range controlled by the SmartShare is visible on the LAN

configuration menu. Each IP address in this range is considered an individual user.

Advanced administrators can use the Bandwidth User Groups to specify which IP

address ranges are controlled by the SmartShare. When specifying an address range,

you have the option of choosing to identify all IP addresses from a /24 subnet as one

user.

Overflow Users

All IP addresses outside the controlled address range are considered overflow users,

and will be crammed together and treated as a single virtual user by the SmartShare.

This means that the overflow users can access the Internet, but the entire group of

overflow users will only get the bandwidth of one single user.

There is no bandwidth distribution within the group of overflow users. A single heavy

user in the group of overflow users can consume all the bandwidth assigned to the

group of overflow users, and thus block the connection for the other overflow users.

Download and Upload Limiters

The SmartShare monitors the download and upload bandwidth, and while there is

bandwidth enough, all users can use all the bandwidth they like.

When the download bandwidth becomes overloaded, the SmartShare starts restricting

the heavy users by activating the Download Limiter.

When the upload bandwidth becomes overloaded, the SmartShare starts restricting the

heavy users by activating the Upload Limiter.

The SmartShare Download and Upload Limiters are designed to ensure that no single

user is limited more than appropriate.

Advanced administrators can use the Bandwidth User Groups to specify maximum

download and upload bandwidth per user in each group of users.

SmartShare®User Manual

– 6 –

Dynamic Quality of Service

The SmartShare always prioritizes timing critical traffic flows, such as IP telephony

and online gaming, over ordinary traffic flows.

The priority assignment is based on traffic pattern analysis of each flow. It is not

based on the TCP/UDP port number, TOS precedence, DSCP or other fields set in the

packet, because those properties can be controlled by peer-to-peer applications or

malicious users.

Dynamic QOS is an integral part of the SmartShare bandwidth management system,

so it does not require any configuration or allocation of bandwidth.

The SmartShare typically recognizes a timing critical flow and assigns it highest

priority within one second.

Flow Management

All NAT routers contain a table, where each flow is registered while established. Each

entry in the flow table contains the public IP addresses and TCP/UDP port numbers of

the flow and the corresponding IP address and TCP/UDP port number of the computer

on the LAN. The same principle applies to the NAT router in the SmartShare.

The SmartShare flow table is large enough to handle the many flows that can be

expected when many users are active. In addition to having a very large flow table,

the SmartShare Flow Manager is designed to handle excessive flows without crashing

or freezing.

Just like the SmartShare Download and Upload Limiters prevent heavy users from

eating up all the available Internet bandwidth at the expense of other users, the

SmartShare Flow Manager prevents heavy users from eating up all the available flows

in the flow table at the expense of other users.

LowLatency Network Overclocking®

As the name suggests, any Network Overclocking®may have unwanted side effects,

and should be disabled if it causes problems.

When LowLatency is enabled, the TCP MTU is lowered significantly, and thus the

packets become smaller. When the packets are smaller, the packet rate is increased,

and thus the delay and jitter is decreased.

Obviously, using smaller packets means that more packets must be used to convey the

same amount of data, so it does not increase the effective bandwidth.

Modifying the TCP MTU is known from PPPoE connections, where the MTU is

lowered slightly to make room for the PPPoE header added to the packets.

SmartShare®User Manual

– 7 –

Status menu

This page shows the current status of the Internet connection.

System

This shows system status, such as the name, location and contact information, current

time (if an NTP server is available), the duration since the last time the SmartShare

was powered on or rebooted, and the memory utilization.

WAN

This shows the status of logical connection to the ISP, regardless of the physical

connection’s link status.

If the WAN is configured to use a Static IP address, the status will always show the

link as being up, because the SmartShare can not know if the ISP will respond to

traffic or not.

When the WAN has received its configuration from the ISP, the status will show the

link as being up and the assigned IP Address will be visible.

The permanent MAC address of the WAN is visible, because some ISP’s ask for the

MAC address when they set up their customer’s access.

Bandwidth Usage

Download and Upload Rates

The download and upload rates show the current bandwidth utilization in Kbit/s.

Flow Rate

The flow rate shows the number of new flows established per second.

Bytes Downloaded and Uploaded

This shows the total number of bytes transferred in each direction.

Flows Processed

This shows the total number of flows processed, including currently established flows.

Bandwidth Manager

Concurrent Flows

When analyzing the utilization of the Internet connection, it is not only interesting to

know the bandwidth utilization, but also how many concurrent flows are established,

because each flow uses memory in the SmartShare. Flows are sometimes called

sessions or connections. A high number of concurrent flows means that the computers

on the local net are connected to many servers on the Internet, but it does not

necessarily mean that packets are flowing and bandwidth is being used.

Download Limiter

The SmartShare monitors the download bandwidth, and while there is bandwidth

enough, all users can use all the bandwidth they like. In this situation, the Download

Limiter status is shown as READY.

SmartShare®User Manual

– 8 –

When the download bandwidth becomes overloaded, the SmartShare starts restricting

the heavy users by activating the Download Limiter. In this situation, the Download

Limiter status is shown as ACTIVE.

Upload Limiter

The SmartShare monitors the upload bandwidth, and while there is bandwidth

enough, all users can use all the bandwidth they like. In this situation, the Upload

Limiter status is shown as READY.

When the upload bandwidth becomes overloaded, the SmartShare starts restricting the

heavy users by activating the Upload Limiter. In this situation, the Upload Limiter

status is shown as ACTIVE.

Anti Terror Logger

Log Servers

This shows the overall status of the FTP servers where the SmartShare stores the ATL

log files. The status can be: Initializing, OK, Warning or Error.

SNMP Agents

This shows the overall status of the SNMP agents in the switches and routers on the

local network. The status can be: Initializing, OK or Error.

Buffer Usage

The SmartShare temporarily stores the ATL log files in a buffer until they are

transferred to the FTP server. Buffer Usage shows the utilization of this buffer.

Flows Logged

Shows how many flows have been logged by the SmartShare since the last time the

SmartShare was powered on or rebooted.

SmartShare®User Manual

– 9 –

Internet/WAN (Wide Area Network) configuration menu

The Internet service provider usually supplies all the information that is needed to set

the WAN configuration in a letter accompanying the confirmation of the Internet

subscription.

Internet Service Provider connection type

The WAN can be configured for 3 types of connection to the Internet service

provider:

•Static IP

•DHCP

•PPPoE

WAN with Static IP

The following information is required:

•IP address

•Netmask

•Router (Default Gateway)

•Primary DNS Server

The following information is optional:

•Secondary DNS Server

WAN with DHCP

This type of connection is fully automatic. If the Internet service provider (ISP)

requires a device name in the DHCP request, it can be configured here.

WAN with PPPoE

The following information is required:

•PPPoE username

•PPPoE password

Connection Speed

The Internet connection speed must be set correctly, or the bandwidth distribution will

not function as intended.

The following information is required:

•Download speed in Kbit/s

•Upload speed in Kbit/s

If the connection speed advertised by the Internet service provider (ISP) contains two

numbers, for example 1024/256; the download speed is normally the larger of the

numbers and the upload speed is the lesser.

Please note that an advertised speed of 1M sometimes means 1024 and 2M sometimes

means 2048, but 10M typically means 10000 and 100M always means 100000.

Many ISPs advertise the gross connection speed, which does not include overhead in

the ISP’s network (e.g. PPPoE encapsulation and ATM cell alignment). The speed

settings in the SmartShare must be entered as net values. This means that they may

need some adjustment to compensate for the overhead in ISP’s network. Entering the

speeds as 80% of the ISP’s advertised speeds is a good rule of thumb.

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