Sennheiser SL Multi-Channel Receiver DW User Manual

SL Multi-Channel Receiver DW

Configuration of 802.1X

Sennheiser electronic GmbH & Co. KG

Am Labor 1, 30900 Wedemark, Germany, www.sennheiser.com

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Configuration of 802.1X

SL Multi-Channel Receiver DW

Contents

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . .	. .	. . .	. .	. .	.	. . .	. .	. .	. .	. . . . . . . .	3
Connecting to the SL Multi-Channel Receiver DW .	.	.	. .	.	.		. . . . . . . .					3
SSH Connection with PuTTy . . . . . . . . . .	. .	.	.	.	.	.						4
SSH connection with the command line tool . . .	. .	.	.	.	.	.	.	.	.	.	. . .	6
Transferring files to the SL MCR DW . . . . . .	. .	.	.	.	.	.	.	.	.	.	6
Configuring 802..1X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . .	. .	. . .	. .	. .	.	. . .	. .	. .	. .	. . . . . . . .	8
Setting your password . . . . . . . . . . . .	. .	.	.	.								8
Setting the system time . . . . . . . . . . . .	.	.	. .	.								9
Step-by-step configuration . . . . . . . . . . .	.	.	. .	.	.							9
Removing the 802.1X configuration . . . . . . .	. .	.	.	.	.	.	.	.	.	12

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Configuration of 802.1X

SL Multi-Channel Receiver DW

Prerequisites

For the 802.1X configuration of the SpeechLine Multi-Channel Receiver (SL MCR DW) some tools are needed:

•SSH client tool

We recommend using the PuTTY SSH client or a standard command line SSH client. Any SSH client capable of openssh keys can be used.

•SCP client tool

We recommend using the PuTTY SCP tool or a standard command line SCP client. Even though they are very popular, tools like WinSCP are not supported since they rely on more permissions than are granted (e. g. reading out the file system of the remote machine).

•SSH keys (pnac_key pair + pnac-ft_key pair)

These keys are provided by Sennheiser on the following website: www.sennheiser.com/sl-mcr-dw

For the 802.1X configuration two things need to be done in parallel: 1. Configuration (see „Configuring 802.1X“)

2. Transfer of the needed files by SCP (see „Transferring files to the SL MCR DW“)

Connecting to the SL Multi-Channel Receiver DW

To configure 802.1X for the SL MCR DW, a secure shell (SSH) session needs to be established. For this task an SSH client tool is needed. If a graphical tool (GUI) is preferred, PuTTY

(https://www.putty.org/) can be recommended since it is available for multiple platforms and was tested to work with the SL MCR DW. Linux systems come with a preinstalled SSH client for the command line (Console). Both ways are described in this manual.

For an SSH connection to the SL MCR DW, an SSH key pair is mandatory. You can download it from the following website:

www.sennheiser.com/sl-mcr-dw

These keys should not be considered a security measure. They are publicly available and are not confidential. They are only needed to explicitly start the 802.1X configuration of the SL MCR DW.

During the 802.1X configuration the user will later set his own password for reentering the 802.1X configuration.

Network connection

The first step is setting up the network connection. The SL MCR DW’s default configuration is auto-IP mode. This means a DHCP client is waiting for an IP address to be assigned. If you operate a DHCP server in the network, on which the 802.1X configuration should be performed, refer to the configuration or logs of the DHCP server to obtain the SL MCR DW’s IP address. If no DHCP server is present on the network, the SL MCR DW will use a link-local address in the area of 169.254.0.0/16.

In both cases (DHCP or link-local) the SL MCR DW will publish its hostname and IP address via multicast DNS (mDNS).

For a more convenient discovery and network setup of the SL MCR DW you can use the Sennheiser Control Cockpit software (www.sennheiser.com/control-cockpit-software).

Once the IP address of the SL MCR DW is known, you can verify the IP connection by sending pings to the SL MCR DW. If the SL MCR DW replies, you can continue with the next steps.

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Configuration of 802.1X

SL Multi-Channel Receiver DW

SSH Connection with PuTTy

In PuTTY there are three options which need to be set. On the left you can navigate through the configuration categories.

Under Session you can enter the IP address of the SL MCR DW. Choose SSH connection on port 22. For easy reuse, you can save the settings with the Save button.

Under Connection -> SSH -> Auth you can choose authentication via key file. Please browse for the key file pnac_key.ppk file (for PuTTY just this one key file is needed). This is the private key in the appropriate PuTTY key format.

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