5 Must-Have Features in a Connect Bridge

We have already talked about a signal repeater as one of the operating modes of the router and special equipment for these tasks. It&#;s time to deal with a very similar &#; wireless bridge. Not to confuse with a repeater, although they have similar features in common.

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It is important to correctly understand what Wi-Fi bridge mode is and how to use it correctly.

What is Bridge mode?

It is worth noting that Bridge is a mode in which several routers can interact. If the signal repeater only extends one network, then the bridge &#; creates 2 or more separate zones. They only need one internet connection to work.

The first device transmits the Internet to the second, but both routers operate autonomously.

Thus, the user of the first network cannot connect to devices from the second, view traffic, manage the connection, or seamlessly switch between routers. Also, different settings, passwords, etc. can use to access both access points.

What is a wireless bridge?

Basically, bridge mode is used to connect devices that belong to another owner to the network. For example, in our private sector, we ran out of slots for connecting to cable Internet, but there were neighbours who did not have time to connect.

The best way for them to get access to the network is to negotiate with the owners of the Internet that they set up the bridge mode. Then both owners will have independent internet from the same source.

How to make a Wi-Fi bridge?

To create the desired network, you need at least a wireless bridge in bridge mode. However, this is the minimum that we can use in situations where the distributing and receiving devices locates nearby.

Ordinary routers work more or less stably at a distance of several tens of meters. And this provides that they have good external antennas, as well as built-in support for bridge mode.

If the distance between devices is about 100 m or more, conventional routers are indispensable. You will already need special long-range equipment that creates bridges over long distances.

Most well-known router manufacturers also produce bridges, but wireless bridge considers the best in this market segment. She has a wide range and there are models for different pockets.

For routers and special bridges to work, you need to configure them, but this is not a guarantee of success. It is important to pay attention to a number of additional factors.

How to make a stable network in bridge mode?

Devices from the same manufacturer are almost always more stable. On the contrary, devices from Asus and TP-link or other companies sometimes experience difficulties in connecting.

Wireless WIFI Bridge may not be visible

Both devices must be in the line of sight. The wireless bridge may not be visible, but they must be accurately directed to each other. The farther the devices locate from each other, the more precisely the direction should adjust.

It is very important that there are no obstacles between them. If there are trees, walls, houses, etc. along the signal path, the devices should raise high enough to avoid these obstacles.

Both devices must have enough power to create a bridge. They should also have the same frequency of operation. If the coverage area is not enough, we recommend installing an amplifying antenna.

How to set up a wireless bridge?

If all devices are ready and exposed, the last step is to set up a bridge between two routers using the TP-link example:

We connect the router with Internet access to the computer via cable and open its control panel (tips are on the label).

Open the &#;Wireless Mode&#; section and set one of the free channels from 1 to 13. It is important to remember this value.         

The option refers to Wireless Distribution Software

The abbreviated name of the technology is WDS. The scope of this function is wide. Often this mode uses to connect one wireless bridge to another. This is necessary primarily to improve the signal. The second device acts as a repeater.

Another application option &#; the router is used as an intermediate link to which devices that do not have wireless modules connect. Various models of routers are able to function in bridge mode.

To find out exactly whether a particular model supports this mode, you should read the description and technical specifications. You can connect the router to a TV without a Wi-Fi module.

The same can be done for a PC that also lacks the module. The wireless bridge can combine several devices that are independent of each other. Setting up a bridge between two routers involves connecting them wired or wirelessly.

What is the difference between a bridge and a repeater?

Router mode allows us to simply distribute the Internet to various home gadgets. But there is also a repeater mode, which should not confuse with the bridge function. Many users have erroneous opinions.

They believe that if you connect two routers to each other, the second one will only work as a repeater. This is not entirely true. Since the second router will be able to create an independent network from the first wireless bridge.

A completely independent connection creates, and a password will be set. The functionality of the repeater is not capable of such actions. In addition, many people confuse modems with routers.

The device of the first type only receives signals. Modems are not capable of distributing the Internet over a wireless network. But on sale, you can find 2 in 1 devices &#; modems with a built-in router. There is a difference between bridge mode and router mode.

When data sources or virtual connections connect to private network data that Tableau Cloud can't reach directly, Tableau Bridge is used to facilitate connectivity.

Connection types

Tableau Bridge supports on-premise data or data in a virtual cloud that is behind the firewall. The data can range from CSV files on your private network or data stored in a data warehouse.

For cloud data that Tableau Cloud can reach directly, setting up refresh schedules directly with Tableau Cloud is almost always a better choice. For example, you might be able to connect to a MySQL database hosted on a cloud platform. In a scenario like this, you can set up a refresh schedule for extracts that connect to this type of data directly with Tableau Cloud.

Extract refreshes

When data sources or virtual connections use extracts to connect to private network data, Bridge can be used to perform scheduled refreshes of those extracts. Refreshes can be scheduled, in most cases, by the content owner as part of the publishing process. For extract refresh requirements, see Additional requirements for extract connections.

Live connections

Bridge supports data sources or virtual connections with live connections to private network data using a feature called live queries. If the content owner publishes a data source or virtual connection that uses a live connection to data that Tableau Cloud detects that it can't reach directly, live queries are automatically used. For live query requirements, see Additional requirements for live connections.

• Bridge doesn't support live connections for some cloud data sources. These include Google Cloud SQL, OData, and Progress OpenEdge. Use extract connections to keep data fresh.
• Bridge doesn't support live connections for some private cloud-based data sources. These include Google Drive, Box, OneDrive, Dropbox, and Azure Data Lake Storage Gen2. Use extract connections to keep data fresh.
• Live connections to file-based data such as CSV, text, Excel, statistical (.sas7bdat) isn&#;t supported.

Virtual connections

Bridge supports virtual connections, which provide a sharable central access point to data.

• Snowflake isn&#;t supported when used with virtual connections.
• OAuth for virtual connections is supported on a connector basis. See the following Knowledge base article and OAuth Connections.

File data

The latest version of Bridge supports file data including CSV, Excel, text, statistical (.sas7bdat), PDF, and spatial files.

• Extract refreshes for published data source files are supported on the Bridge Windows client. If you are connecting to a local file path, you must use the Default pool.

• Extract refreshes for embedded data source files are supported on the Bridge Windows client. You must use a configured pool for embedded data sources and the file path must use the UNC format.

• File data isn&#;t supported on Bridge for Linux.

• Extract refreshes and live query of Hyper files on a file share are not supported.

• Live connections to file-based data aren&#;t supported on the Windows client or Bridge for Linux for Containers.

Connections to cube-based data

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Cube-based data is not supported.

Embedded data sources

Tableau Bridge supports data sources that are embedded in workbooks.

• Live connections for files data such as CSV, text, Excel, statistical (.sas7bdat) aren&#;t supported.

• The default pool does not support embedded data sources. You must use a pool that has been configured. For more information, see Configure the Bridge Client Pool.

Published data sources

Scheduled extracts of published data sources don&#;t support multiple pools.

Tableau Prep Builder

Private network connections for Tableau Prep through Tableau Bridge are not supported.

Connectors and data types

Bridge supports a combination of connectors that Tableau Desktop and Tableau Cloud(Link opens in a new window) supports. Unsupported connectors and limitations for connectors and data types are listed below.

Include External Files

Include External Files is not supported for Published Data Sources. To refresh published flat files, change the connection information so that the data source references a full UNC path. For example, rather than connecting to D:\datasource.xls, you would connect to \\filesrv\datasource.xls.

Private cloud data

In most cases, Tableau Cloud will automatically detect the Bridge client. In some cases, you might need to manually configure your connection to ensure that Bridge is used. For more information, see Use Bridge for Private Cloud Data.

Unsupported connectors

• Connectors built by third parties that are not on the Tableau Exchange are not supported.
• Some Exchange Connectors are not supported. See section below.
• Microsoft Analysis Services.
• Microsoft PowerPivot.
• Oracle Essbase.
• SAP NetWeaver Business Warehouse.

Exchange Connectors

Tableau Bridge can be used to query data using the select connectors available on the Tableau Exchange connector page(Link opens in a new window). The Exchange connectors that are supported are Actian JDBC, Altinity Connector for ClickHouse, Guidanz BI Connector, Couchbase Analytics, Stratio Crossdata, Data Virtuality JDBC, Jethro ODBC, Oracle NetSuite, SAP SuccessFactors, ServiceNow, and SingleStoreDB JDBC.

To use Exchange Connectors with Tableau Bridge, follow these steps for each Exchange connector and each Bridge client in the pool that will access the target data source.

1. Download the .taco file from the Tableau Exchange connector page(Link opens in a new window).

2. Add the .taco file to the Tableau repository connector directory:

   • On Windows: C:\Users[Windows User]\Documents\My Tableau Bridge Repository\Connectors

   • On Linux: /root/Documents/My_Tableau_Bridge_Repository/Connectors

   • For Data Connect, run the following command to create the Connector directory in your base image: mkdir -p /home/tableau/Documents/My_Tableau_Bridge_Repository/Connectors

3. Follow the instructions on the Tableau Exchange for your connector to download the required driver.

4. Install the driver on the Bridge client.

5. Restart the Bridge client.

Connectors that don&#;t support Live connections

• Google Cloud SQL
• OData
• Progress OpenEdge

SAP HANA

To connect to SAP HANA using live connections, parameters and variables must be disabled.

Snowflake

Snowflake isn&#;t supported when used with virtual connections.

Data used in a multi-connection data source

Tableau Bridge can be used to refresh cross-database joined data sources. The database connections defined in the workbook or data source determine how you can publish and keep the data fresh on Tableau Cloud. As long as all the individual data connections are of a type that Tableau Bridge can refresh, then the cross-database joined data source can be refreshed.

Other Databases

• Tableau provides limited customer support for connections using JDBC. See Tableau support for Other Databases (JDBC) connections.
• Tableau provides limited customer support for connections using ODBC. See Tableau support for Other Databases (ODBC) connections.

Web data connectors

• Bridge is not able to connect to data from Web Data Connector 3.0. For more information, see Connectors Built with the Web Data Connector 3.0 SDK.
• The Web Data 2.0 is deprecated as of the .1 release. See Web Data Connector 2.0.
• Tableau doesn&#;t support connectors or other programs written to interface with the WDC API.

Bridge for Linux

Tableau Bridge supports a Linux-based operating system designed for container workloads. Limitations and differences include:

• Bridge for Linux does not support legacy schedules.
• Bridge for Linux runs in the background, which is the equivalent to Service mode in Tableau Bridge on Windows.
• To save log files, copy the files or folders between your docker container and your local file system.
• Currently, Bridge for Linux is installed by running commands in a running container using docker executables.
• Bridge for Linux does not support flat files (Excel, .csv, etc), live or extract.
• Bridge for Linux does not support SAP HANA SSO
• Bridge for Linux does not support Windows (UNC) file share paths
• Bridge for Linux does not support Window integrated authentication

Authentication

The connected client option must be enabled for the site to allow Bridge clients to run unattended and, if enabled, support multi-factor authentication with Tableau authentication. If connected clients are disabled for the site, Bridge can only support Tableau username and password authentication.

OAuth

• Tableau Bridge for Windows and Bridge for Linux do not support OAuth for Azure Data Lake Storage, Azure SQL, Azure Synapse, and Dremio.

• OAuth with embedded data sources for Google Drive and OneDrive is not supported. However, OAuth with published data sources using Google Drive and OneDrive is supported.

• When using your own identity provider (IdP) with the Amazon Athena connector, you must set up the OAuth client configuration file. See Use your own identity provider with Amazon Athena.

Windows Authentication

The Windows user account must be a member of the local admin group to run the client in service mode. If the user isn&#;t a local admin, they can run the Bridge client in Application mode, but they must remain logged in to the Windows machine.

Kerberos

Bridge on Windows supports Integrated Windows authentication through the "run-as" account, for both files and some databases

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