I recently reconfigured one of my Dell PowerConnect 3548P switches to prepare it for another task. To perform this task, I connected to the serial interface, logged into the CLI console with my terminal emulator and reset the device, and configured an ip address in preparation to use the web GUI. Here’s how I performed these tasks.
Connect to Dell PowerConnect Switch Through Serial Interface
The first step is to find the serial cable that came with the switch, or any other typical serial cable. Connect it to the back side of the Dell PowerConnect in the serial port interface as shown in the photo.
The other end gets a little more involved with today’s computers. If your computer has a serial port, then you are in luck, connect it there. If not, you will have to find a computer with a serial port, or get a USB to Serial adapter.
For this task, I used my Tripp-Lite Keyspan USB serial adapter which I plugged into my USB port and then connected the serial cable to the 9 pin male end of the Tripp-Lite Keyspan adapter. You can see how it connects in the photo.
Next, find a terminal emulator that will recognize your serial port. Typical terminal emulators are putty or hyperterm on Windows workstations. I used Zterm on my Mac OS X box.
This leads to the next step. You will need to configure your terminal emulator’s line settings to 9600,8,n,1. You can see the settings below that I found configured in my Dell PowerConnect switch:
console> show line Console configuration: Interactive timeout: 10 minute(s) History: 10 Baudrate: 9600 Databits: 8 Parity: none Stopbits: 1
This should get you connected to serial console.
Reset Dell PowerConnect Switch to Factory Settings
The next step after connecting with the terminal emulator was to reset the switch to factory default settings. We do this by deleting the startup-config file and then reloading the switch as shown below:
console> en console# delete startup-config console# reload
This will reset the switch to factory default settings. Now, it’s time to configure it with an address:
Assign Ip Address to Dell PowerConnect Switch VLAN 1 Interface
The next step that I took was to assign an IP Address to the VLAN 1 interface. First, I just checked to see if an address was assigned already:
console> en console# show ip interface Gateway IP Address Activity status Type ----------------------- ----------------------- -------- IP Address I/F Type ----------------------- -------------------- ---------
Nope, no addresses configured on any interface. So let’s configure one:
console> en console# configure console(config)# interface vlan 1 console(config-if)# ip address 10.2.3.4 255.255.252.0 console(config-if)# ip default-gateway 10.2.3.1
Now, we make sure that it took:
console(config-if)# exit console(config)# exit console# show ip interface vlan 1 Gateway IP Address Activity status Type ----------------------- ----------------------- -------- 10.2.3.1 Active static IP Address Type ----------------------- --------- 10.2.3.4/22 Static
Enable WebGUI Admin User on a Dell PowerConnect Switch
At this point, I plugged in an ethernet cable from my workstation to interface e1 of the switch. I configured a static address on my workstation and verified that I could ping the switch’s VLAN 1 IP Address. I then took my browser and directed it to the switch’s ip address. I found that while I could browse to it, I couldn’t login.
So, back to the serial console to enable an admin user for login to the web gui.
console> en console# config console(config)# ip http authentication local console(config)# username admin password mypassword level 15
That did it. I returned to the browser and am now able to login successfully with the web gui to complete my configuration!
At this point, I don’t want to lose any of the work that I have done on my PowerConnect switch, so I will now save my work by copying the running-config to the startup-config.
console> en console# copy running-config startup-config Overwrite file [startup-config] ?[Yes/press any key for no]....01-Jan-2000 01:38:40 %COPY-I-FILECPY: Files Copy - source URL r unning-config destination URL flash://startup-config 01-Jan-2000 01:38:47 %COPY-N-TRAP: The copy operation was completed successfully Copy succeeded
That’s it. My Dell PowerConnect switch is configured with a new ip address on VLAN 1, and I can login successfully using my browser. I am now ready to add any site-specific configuration that I need for my specific needs.
Where to Get More Information on Dell PowerConnect Switches
Dell PowerConnect 3500 Series Specification Sheet: http://www.dell.com/downloads/global/products/pwcnt/en/pwcnt_3500_spec.pdf
Dell Networking 3500 Series: http://www.dell.com/us/business/p/powerconnect-3500/pd
Dell PowerConnect 3500 Getting Started Guide: ftp://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_powerconnect/powerconnect-3524_Setup%20Guide_en-us.pdf
Dell PowerConnect 3500 User’s Guide: ftp://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_powerconnect/powerconnect-3524_User%27s%20Guide_en-us.pdf