Cisco Cisco Web Security Appliance S360 故障排查指南

Contributed by Campbell Krueger and Robert Sherwin, Cisco TAC
Engineers.

Oct 13, 2014

This document describes how to connect to your Cisco Email Security Appliance (ESA), Cisco Web Security
Appliance (WSA), or Cisco Security Management Appliance (SMA) via a serial cable.

In the event network connectivity is not an option for administering your appliance, you may also connect
directly to the appliance's COM port using a null modem cable (9−pin serial) in order to establish a command
line interface (CLI) session. This is particularly useful during the initial configuration process of the device.

In order to proceed, you will need the following:

9−pin female−to−female serial cable (null modem)

• 

Serial console client (such as HyperTerminal or PuTTY)

• 

Please use the following procedure as a guide:

Connect your laptop (or other client device) to the serial port on the back of the unit using a standard
9−pin null modem cable.

1. 

Launch your preferred serial console client. Specify the appropriate COM port to use on your local
machine, and use the following settings for the connection:

Bits per second: 9600
Data bits: 8
Parity: None
Stop bits: 1
Flow control: Hardware (RTS/CTS, DSR/DTR)

2. 

Once the session has been opened, you may need to press Enter to trigger output. At this time, you
should see a login prompt akin to what would be seen in a Telnet− or SSH−based CLI session.

3. 

Log in using your appropriate credentials.

4. 

Please refer to the Quick Start Guide (QSG) for your appliance for direct information.