HP 5412zl core switch - need IP address to access it

[foofighterjim]

Mr paperclip definitely comes handy in these situations

 

You mean a universal switch resetter.

[Michael]

Haha indeed, how many people would actually buy one?

[Blue_Cookeh]

Once you have connected the USB to your laptop check in device manager what COM port it is.

 

Open putty, select serial and then change the com port.

 

On a 5412, surely they should have an RJ45 not a 9pin serial connection (DB9)

 

Make sure the serial is using 9600 baud, Data bits 8, Stop Bits 1, Parity None and Flow control can be none. Basically Cisco console settings should work.

 

Maybe the person who changed the IP address did not save it and on a reboot it went back to startup config, hence now not same IP for management vlan.

 

Looks like a DB9 to me.

[Davit2005]

Looks like a DB9 to me.

 

Yep that is a DB9. Those of us who know what the old IDE, SCSI, Parallel, Centronics connectors are about

[Michael]

I do

[winng]

For HP, once connected correctly with hyperterminal and on the prompt, try the following:

 

 

1. Type “menu”, hit Enter
   
2. Select “Switch Configuration”
   
3. Select “IP Configuration”
   
4. Navigate to Edit, hit Enter
   
5. Change the IP and then Save
   

 

Hi, I'm back again....

 

I've purchased a serial to serial cable as getting nowhere with the usb one.

 

I've plugged it into my old laptop port and the switch port. So far so good.

 

I've connected with HyperTerminal - at least it says I'm connected.

 

But despite there being a blinking prompt, I can't enter any commands?

 

Any further ideas please?

[Steve21]

Did you try hitting enter a few times as I said? Some of them won't show any output until they're received input

 

Steve

[CAWJames]

The manual says:

 

any baud rate from 2400 to 115200 (the switch automatically senses the

speed)

8 data bits, 1 stop bit, no parity, and flow control set to None

 

So double check your details in hyperterminal just in case(I would much prefer Putty/Kitty though)

 

http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c03114710-3.pdf

Edited November 22, 2016 by CAWJames

[CAWJames]

Also see the sections on what the Reset and Clear buttons actually do, when reset is not actually a reset

[winng]

Thanks for the speedy responses. I'm sitting here next to the switch, laptop on lap, etc. and it's getting chilly...

 

Still no signs of life.... despite saying I have a connection.

[CAWJames]

have you been into device manager and checked it is actually COM1? Can you download Putty and use the serial connection on that? What cable are you using? Is it the proper HP one, not all serial cables are the same..

[winng]

I've tried using putty and hyperterminal - both make a connection but don't allow any commands to get things moving.

 

It's not the HP one as we can't locate that....... I've bought a cable on eBay.......

 

May try the reset and clear process again.....

[Blue_Cookeh]

Just because PuTTY shows a blank screen with a cursor doesn't mean it's made a connection either

[CAWJames]

Follow the factory reset, if thats what you want, but it will clear all, and depending on the switch, I know some don't have a web gui until you specifically go in and set one, which means without a working console connection, you effectively have a dumb switch until you can connect.

 

Also be aware if you have VLANS and everything suddenly can connect on the one flat lan, DHCP may go mad, depending on what is connected and how they are set up.

[CAWJames]

I think this is the problem, from the manual 3.1

 

In the factory default configuration, the switch has no IP (Internet Protocol)

address and subnet mask, and no passwords. In this state, it can be managed

only through a direct console connection. To manage the switch through inband

(networked) access, you should configure the switch with an IP address

and subnet mask compatible with your network. Also, you should configure

a Manager password to control access privileges from the console and web

browser interface. Other parameters in the Switch Setup screen can be left at

their default settings or you can configure them with values you enter.

[winng]

I think this is the problem, from the manual 3.1

 

In the factory default configuration, the switch has no IP (Internet Protocol)

address and subnet mask, and no passwords. In this state, it can be managed

only through a direct console connection. To manage the switch through inband

(networked) access, you should configure the switch with an IP address

and subnet mask compatible with your network. Also, you should configure

a Manager password to control access privileges from the console and web

browser interface. Other parameters in the Switch Setup screen can be left at

their default settings or you can configure them with values you enter.

 

That's exactly what I want to achieve.

 

PS _ I've flattened the network so only want the one, default vlan.

[CAWJames]

It sounds like that is what you have achieved, but without a console you won't be able to go any further

[ChrisH]

If it is like ours there is an SD card in the controller module you could take that out and grab the config.