Reaching Cisco router console port remotely RutOS

Introduction

This article describes how to connect to a console of another device (e.g., a Cisco router, Fortigate firewall, etc.)

Prerequisites

You will need:

• A router/gateway with USB or RS232 Serial
• An RS232 (male) - RJ45 cable (to connect to a Cisco AUX port):
  
• Or a USB type Mini - USB type A cable (to connect to a USB type mini console port):
  

Configuration

There are multiple ways to connect to a console port, which are described in the sections below:

RS232 - RJ45

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RS232 can be configured from the Services → RS232/RS485 → RS232 Configuration page. The following RS232 configuration should be used:

• Enable RS232.
• Select baud rate (9600).
• Select Serial type (Over IP).
• Select Protocol (TCP).
• Leave mode as Server.
• Type in port (15026)
• Save configuration

USB

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Using Mini USB – USB type A configuration. Configured from the WebUI, Services → USB Tools → USB to Serial page:

Firstly, we'll need to add a new USB to Serial instance:

• Type name.
• Press Add.

Then, we'll need to configure this instance:

• Enable
• Name should be already written
• Select device ID
• Select baud rate
• Choose two Stop bits
• Select Serial type (Over IP)
• Choose TCP protocol
• Leave mode as Server
• Type in port (43223)
• Save configuration

PuTTY configuration

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The console can be accessed by using software such as PuTTY (can be downloaded from here.

The PuTTY configuration should look like this:

• Type in routers/gateways IP
• Select port you've configured in RS232/USB to Serial.
• Select RAW connection type

Then you should successfully connect to Cisco device:

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If you do encounter any issues with PuTTY, you can try connecting from Teltonika's device directly to Cisco's:

• Connect to router's/gateway's CLI
• Type in this command "microcom -s 9600 /dev/rs232"

This way you'd know if Teltonika's device is even able to see whats on the other side of RS232.

Console port

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Example of console ports: