Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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If you bought it second-hand, chances are that the previous owner changed the default subnet. I looked through the online PDF of the manual for a reset procedure, but could only find instructions for resetting it from the Web interface (which is pretty useless). If there's a hardware reset button physically on the device somewhere, hold it down for about 30 seconds and try again.
@jefro: How do I determine the MAC address of the switch?
The MAC address is usually stamped onto the device somewhere - check for a sticker on the casing of the switch. It might not be labelled "MAC address", but it's the one that follows the format "01:23:45:67:89:ab".
@CTM: my routing table has no entries
That goes some way to explaining why nothing's working Try jefro's approach for now, it's easier to get it working that way.
Actually the best way was to find the reset button. Some HP and maybe others have some odd way that I forget. It is not a reset button at all. Guess I ought to look that up.
Also if someone did set it as a managed or smart switch it could be very difficult to access it. If the static arp doesn't work then you need to find out how to reset it. Darn, I ought to know this since we have some like that. Might have to use console.
Be sure to remove static arp entries when finished. They are real stinkers if left in.
Side note. If the mac isn't on the switch you usually can just issue arp command to show what is on the lan. arp -a maybe, look that up.