FS S3900 SERIES SWITCHES

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The S3900 series switches consist of three models: S3900-24T4S, S3900-24F4S, S3900-48T4S, which are fully managed stackable Gigabit switches, equipped with Broadcom chips, supporting 10G SFP+ uplinks, designed for SMB, campus and enterprise networks.

S3900-24T4S S3900-24F4S S3900-48T4S

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How to Log in to FS S3900 Series Gigabit Managed Switches

Posted on By FS.COM

FS S3900 series switches are L2/L2+ managed switches that feature L3 routing, 10G speed, physical stacking, etc., designed to meet the needs of the convergence or access layer. For S3900 series managed switches, there are four login methods: console port, Telnet, SSH and Web browser. This article will give a detailed configuration guide of them.

Login Methods Overview

Basically, you can manage the S3900 series switches through CLI (command line interface) and web GUI (Graphical User Interface) system. Console port login, Telnet and SSH configuration are run commands in CLI interface, and web system provides users an easy way to manage and maintain the switch on a GUI. However, console port login is the basis of the other three login modes. Telnet, SSH and web services must be enabled first before you use them.

Different methods have their own applied conditions. Here are the advantages and disadvantages of them.

Login Method Advantages Disadvantages Applications
Console Port Simple and easy to log in with a console cable. Users cannot manage devices remotely. Log in to a switch for the first time; no network is available; remote switch login fails.
Web System Provide users an easy way to manage and maintain the switch on a GUI, which is user-friendly. It only provides basic management functions. When a device functions as a server, or users do not familiar with CLI commands.
Telnet Offer a way to manage switches remotely without connecting a terminal to each switch. Data is transmitted using TCP in plain text, which may cause security problems. Users need to manage devices remotely, and do not require high-level security.
SSH (Secure Shell) Provide a more secure remote login way to manage devices effectively. SSH configuration is complex. Users need to manage devices remotely with high requirements of security.

Some users may get confused about the Telnet and SSH because both of them can be used to login remotely.

More details about Telnet and SSH can be found here: Which Client Software Is Better for Telnet and SSH? And in the following part, the four login configuration will be explained. All the configurations can apply to the three modes of S3900 series switches. Here take S3900-48T4S switch as an example.

Option 1: Console Port Login Configuration

Configuration Notes:

  • FS provides the RS232 to RJ45 console cable, if you use a laptop or PC, you should prepare one RS232 to USB converter cable for your laptop or PC.

  • Prepare the terminal emulation software on your computer. The commonly used emulation software are SecureCRT and Putty. Here take SecureCRT for example.

  • FS S3900 series switches provide EIA/TIA-232 asynchronous serial console port.

Procedure

  1. Connect the computer and S3900-48T4S via the RS232 to RJ45 console cable as shown in the following figure.

    S3900 Switch Log In.jpg


Tips for finding the corresponding COM port on the computer:


  • Pressing the Windows Key + R to open the Device Manager, then type “devmgmt.msc” and press "Enter".

  • Expand the Ports (COM & LPT) section to view which COM port you have used.

2. Start the terminal emulation software SecureCRT, select the serial login mode and set the terminal communication parameters as follows:

cli.jpg

3. Click “Connect” and the following interface will be displayed. Enter the default username (admin) and password (admin), then you can run commands to configure the switch.

Username: admin
password:
CLI session with the S3900-48T4S is opened.
To end the CLI session, enter [Exit]
S3900-48T4S#

Option 2: Web System Login Configuration

Configuration Notes:

  • HTTP service must be enabled in CLI environment.

  • To use the web management function, users need to open a browser and enter the IP address that set in the CLI interface.

Procedure

1. Log in to the S3900-48T4S switch via console port and enter the CLI interface. For details, see Console Port Login Configuration

2.Set the IP address for the MGT management port.

S3900-48T4S #configure terminal
S3900-48T4S(config)#interface Craft
S3900-48T4S(config-if)#ip address 192.168.1.1/24
S3900-48T4S(config-if)#exit

3. Enable the http service

S3900-48T4S(config)#server http enable
S3900-48T4S (config)#end

4. Verify the configuration results

S3900-48T4S#show ip interface vlan 1
VLAN 1 is Administrative Up - Link Down
Address is 00-00-00-00-02-02
Index: 1001, MTU: 1500
Address Mode is User specified
Proxy ARP is disabled
DHCP Client Vendor Class ID (text): S3900-48T4S
DHCP Relay Server:
Craft interface is Administrative Up
IP Address: 192.168.1.1 Mask: 255.255.255.0

5.Set the IP address of the connected computer as 192.168.1.2/24

configure IP-p.jpg

6. Open a browser, type 192.168.1.1, and enter the default username and password, admin/admin, and then you can manage the S3900-48T4S switch via web GUI.

web-initial-interface-of-fs-3900-24f4s-switch.png

Option 3: Telnet Login Configuration

Configuration Notes:

  • Telnet service must be enabled in the console port login before you use it.

Procedure

1. Log in to the S3900-48T4S switch via console port and enter the CLI interface. For details, see Console Port Login Configuration

2. Set the IP address for the MGT management port.

S3900-48T4S #configure
S3900-48T4S (config)#interface Craft
S3900-48T4S(config-if)#ip address 192.168.1.1/24
S3900-48T4Sconfig-if)#exit

3. Enable Telnet server function.

S3900-48T4S(config)#server telnet enable
S3900-48T4S (config)#end

4.Set the IP address of the computer to 192.168.1.2/24.

configure IP-p.jpg

5. Unplug and connect the RJ45 connector of the console cable to the MGT port.

6. Open the SecureCRT software, select the login mode as Telnet, Hostname: 192.168.1.1, Port: 23, Firewall: None.

telnet--p.jpg


7. Click the “Connect” and you will enter the CLI interface. Input the default username and password (admin/admin), then you can configure the switch via Telnet now.

Option 4: SSH Login Configuration

Configuration Notes:

  • SSH function must be enabled via console port or Telnet before you use it.

Procedure

1. Log in to the S3900-48T4S switch via console port and enter the CLI interface. For details, see Console Port Login Configuration

2.Set the IP address for the MGT management port.

S3900-48T4S #configure
S3900-48T4S (config)#interface Craft
S3900-48T4S(config-if)#ip address 192.168.1.1/24
S3900-48T4Sconfig-if)#exit

3. Enable SSH server function.

SW#ip ssh crypto host-key generate (Earlier than 1.6.9, you need to create a key first to start ssh.)
SW(config)#ip ssh server enable

4. Unplug and connect the RJ45 connector of the console cable to the MGT port.

5. Open the SecureCRT software, select the login mode as SSH2, Hostname: 192.168.1.1, Port: 22, Firewall: None.

ssh--p.jpg

6. Click the “Connect” and you will enter the CLI interface. Input the default username and password (admin/admin), then you can configure the switch via SSH now.

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