I cannot connect using serial console port (no signal / data out of serial console port). I don't have IP address of the DS4100B. I don't have its password... How can I reset it to factory default?

Serial Port Signal Names Header Comments Serial1 /TxD1, /RxD1, XCV1+, XCV1- HCS12 Comm Header Standard baud rates up to 115.2 Kbaud. Jumper selectable RS232 or RS485. Jumper selectable termination options. All signals are also available on the Docking Panel. Serial2 /TxD2, /RxD2, XCV2+, XCV2- HCS12 Comm Header Standard baud rates up to 115.2 Kbaud. Jumper selectable RS232 or RS485. Jumper selectable termination options. The RS485 signals are not available on the Docking Panel. IIC SDA, SCL Analog Field Header 2-wire multi-drop bus, up to 100 Kbaud. Each device must have unique numeric address. SPI0 MOSI, MISO, SCK Wildcard Bus Header 3-wire multi-drop bus, up to 10 MBaud if SPI bus master, up to 5 MBaud if SPI slave. Each device must have unique hardware chip select signal. SPI1, SPI2 MOSI1, MISO1, SCK1, /SS1, MOSI2, MISO2, SCK1, /SS2 SPI Header Used for inter-processor (IP) communications on multi-processor systems such as the PDQScreen. Can be used to communicate with other peripheral devices if multi-processing is not required.
RS232 and RS485 communications The PDQ Single Board Computer (SBC) has two asynchronous serial communications ports named Serial1 and Serial2. Each serial port can be configured for the RS232 or RS485 protocol, and runs at standard baud rates up to 115,200 bits per second. The default baud rate after a factory cleanup is 115200 baud. The Serial ports are implemented by the dual on-chip hardware UARTs (Universal Asynchronous Receiver/Transmitters) on the Freescale 9S12(HCS12) microcontroller.

Each UART (sometimes referred to as a "USART") controls the serial-to-parallel and parallel-to-serial conversion and performs all of the timing functions necessary for one asynchronous serial communications link. They translate the bit-by-bit data on the serial cable into bytes of data that can be interpreted by the operating system or by your application program. The communications is asynchronous because no synchronizing clock signal is transmitted along with the data. Rather, the UART deduces the correct time to sample the incoming signal based on the start and stop bits in the signal itself.

The Serial1 and Serial2 ports have identical communications capabilities, although more of the Serial1 signals (both RS232 and RS485) are made available on the Docking Panels headers and connectors. After a factory cleanup, Serial1 is the default serial port for program development and downloading. In a finished instrument, either or both channels can be used to communicate with other serial devices, or with other computers and/or terminals using RS232 or RS485. Having a second serial port is also handy for system debugging. Since both channels can operate simultaneously and independently, serial debugging can be performed while the application program is

If you can't find the manual on the Dell web site, there is a copy at: http://www.manualowl.com/m/Dell/PowerConnect-3548/Manual/188907

Did you use the command: ip http server ? See page 501 in the manual.

I would not recommend setting up a network switch with password-free access to the internet. You should at the very least limit access to a small subset of IP addresses (e.g. your network group's machines). The best practice is to use ssh communications or https with the web browser, otherwise anyone with a well-placed sniffer can read your clear-text traffic.

Looks to me like they never implemented the serial port. The used unit I just obtained has no signal on the serial console pins and no SMC documentation beyond plugging it in appears to exist. Likewise with TELNET access.

However you can reset the switch to factory defaults with the following procedure from a pop-up window off the login page. It worked for me.

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If you have forgotten the administration password you can return the Switch to its factory default state by doing the following:

1) Remove the power cord from the back of the Switch.
2) Remove all cables from the front-panel ports.
3) Connect port 1 to port 2, on the front panel, using a standard network cable.
4) Reconnect the power cord to the rear of the Switch.
5) Wait at least 40 seconds before disconnecting port 1 from port 2.

After completing this procedure, the password will be 'smcadmin' and the network address will be returned to the default; 192.168.2.10/24.

Hi

You can reset the device through RS232 port then please follow the below steps.

You need a laptop with Console port and a console cable for EOC-8610 EXT, You really dont need the IP address if you want to do it via console (RS232) interface.

1. Connect the console cable one end to EOC-8610 EXT RS232 port and other end to Laptop serial port.
2. Open Hyper terminal and select com-port option and then provide the username and password for the device management.
3. Go inside the system menu and select Reset Factory default.

Remember if u set to load the factory default settings, the device will loose its config and will boot up with factory default configuration.

Hi,

Xbox 360 Connection Tests: IP Address
This test verifies that your Xbox 360™ console has a valid IP (Internet Protocol) address.
If your console does not pass this test:

Confirm that there are no other devices on your network with the same IP address.

If you are using a router or gateway, verify that it is configured to assign IP addresses to network devices (DHCP-enabled).

If you are connected to a router, make sure that your console'sEthernet cable is not connected to the router's LAN port rather thanits WAN port.

If you are connected directly to a modem and your ISP (Internetservice provider) requires PPPoE settings, verify that your PPPoE username and password are correct. If your ISP doesn't require PPPoEsettings, remove the PPPoE user name and password settings.

If you are connecting directly to a modem and have replaced a devicethat was connected to your modem with your Xbox 360 console or anotherdevice, turn the modem off and back on before connecting the newdevice.

If you are using a static IP address from your ISP, verify the address with a your provider.

If your console is connected to an ad-hoc network (in which devicesare connected directly to each other), it will probably not pass thistest. If your IP address is assigned automatically and your ad-hocnetwork does not include a DHCP server, this does not indicate aproblem. The test is properly reporting that a DHCP server could not becontacted. Xbox Customer Support does not support the use of ad-hocnetworking to connect to Xbox Live.

If you're using an ad-hocnetwork without a DHCP server and you can't connect to Xbox Live, checka different diagnostic test for the root of your problem.

This comes from http://www.xbox.com/en-US/support/connecttolive/xbox360/connectionmethods/troubleshootliveconnection-testipaddress.htm

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Here is what you should do step by step:

I.Configure your Computer
1.Install Bluetooth Adapter
2. Bluetooth Configuration->Local Services-> Add Serial Services ->Bluetooth Serial Port->Properties
Check – Startup Automatically
Check – Secure Connection
COM Port: COMx( mine is COM6)
3.Control Panel -> Phone and Modem Options->Modems->Add-> Check Don’t detect my modem->Next->(Standard Modem Types)->Communication cable between two computers->Next-> on witch port do you want to install it ? -> Selected ports -> COMx ( in my case COM6)->Next->Finished
Now in phone and modem options->Modems you should have : Communications cable between two computers : Attached to : COMx ( COM6 my case)
Select Communications cable between two computers -> Properties->Modem-> Maximum Port Speed : 115200 -> ok ->ok.
4.Control Panel ->Network Connections ->Create a new connection-> Next->Set up an advanced Connection-> Next-> Accept incoming connections->Next-> Check : Communications cable between two computers ->Next-> Check: Do not allow virtual private connections->next->next->select: Internet Protocol(TCP/IP)->Properties:
Network access : Check Allow callers to access my local area network
TCP/IP address assignment : Specify TCP/IP addresses:
From: 192.168.0.x ( x=50 in my case)
To: 192.168.0.y (y=52 in my case) 
->OK->Next->Finish
5.Network Connections
Bluetooth Network -> Enable
Internet Connection ( your internet connection ) -> properties->Advanced->Check:Allow other network users to connect trought this computer’s Internet Connection->OK
If all goes well : Bluetooth Network-> Properties-> Internet Protocol ( TCP/IP)->Properties Should have the following setting:
Checked Use the followind IP address:
IP address: 192.168.0.1
Subnet mask: 255.255.255.0
->OK.
6.Start->Control Panel->Administrative Tools->Services->Routing and remote access->Properties->General: Startup type : Automatic - this service MUST be started 
**7.Install AnalogX Proxy http://www.analogx.com:80/files/proxyi.exe (for the latest version)
Proxy->Configure-> Proxy Binding: 192.168.0.x ( for me x=50 )->ok. 
! If you use a proxy, remember to start it .

II. Configure Phone:
1.Install GnuBox - http://gnubox.dnsalias.org/gnubox/ ( for the latest version)
2.Configure Access point
Tool->Settings->Connection->Accces Points-> New Access point->Use Default Settings
Connection name: Bt
Data Bearer: Packet data
Access point name : Bt
User name: none
Promt Password: NO
Password: ****
Authentication: Secure
Homepage: none
Option->Advanced settings
Network Type: IPv4
Phone IP address: Automatic
Name Servers: Automatic
**Proxy serv. Address: 192.168.0.x ( for me x=50)
**Proxy port number: 6588
3.Configure all the applications from your phone witch require internet acces to use Bt Access Point
4.Configure GnuBox
Options->Install Set to GPRS
Options->Install Create Records
Options->Install->Copy settings from GPRS
Options->Install->set RAS login script
Exit GnuBox
Open Gnubox
Options->2box Bluetooth->Serial Port
Select – your computer
Do you want to require encryption? Yes
Options-> Install->change default AP
** Configure NetFront
Options->Settings->Connection
Enable Proxy : Yes
Proxy Host : 192.168.0.x ( in my case x=50)

Now you can browse the internet from your phone.

NOTE: First Configure the phone and your pc without the ** settings, and if you can’t browse the Internet form your phone then use the ** settings.

Hope this works fine.Thank you.

Using the LPT port is not the same as using the network port. The LPT port does not utulise an IP address.
Plug in a network cable to network port and the printer wil usually aquire an ip address via DHCP.
I repeat the LPT port is not a network port and cant initialise an ip address

have you tried running the troubleshooter (if so, wat did it say?)