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I am wondering how to manage an IBM 8245 (25L4879) hub? I have a feeling there are some filters set on this switch that I can't find, but I'm not able to find the IP address to connect to it via telnet/ssh. Any help would be appreciated.

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Sell it on eBay, and buy a HP Procurve Switch instead. –  Tom O'Connor Jan 31 '11 at 20:57

3 Answers 3

up vote 1 down vote accepted

A simple google search reveals that the 25L4879 is in fact a 8245-124, managed hub.

Another search explain that the 8245 hubs are stackables, and the stack is managed by one of the hubs, which has to be manageable, like the 8245-012 or 024 (respectively 12 and 24ports).

According to this, yours has to be linked to a 012 or 024 in order to be managed.

However, management possibilities are limited (this is a hub, remember). You can configure an IP address through the serial console, and then use snmp and a web interface.

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Perfect! Thanks so much for answering this old question! –  muncherelli Feb 2 '11 at 15:24

I've looked and can't seem to find any manuals available anywhere, IBM's site is useless.

As Vatine states the box has a web interface for management, if you can find the manual then it should state the default IP for that box, otherwise you could just portscan it.

That said this is a hub, not a switch and therefore almost certainly has no ability to intercept or filter any traffic whatsoever, I'd be very surprised indeed if it could in fact.

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actually, ibm website may be useless, but their FTP archive is well indexed by google. –  petrus Jan 31 '11 at 20:51

If you have a rough idea of what range the management address should be in, I'd start by scanning that range (using, say, ping). Otherwise, you'll probably have to scan through likely ranges (192.168/16, 172.16/12 or 10/8), until you get an ARP entry with a MAC address that looks likely.

If you have a current service contract on the device, it may be possible to get a password recovery procedure from the vendor and that may allow you to check the IP address.

Also, probably worth hooking up a console cable and see if that can give you something.

If you can power the device down and it has its configuration on a removable flash disk, it MAY be possible to get the configuration by plugging that disk into a slash card reader and look for likely files.

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