One would usually expect managed switch to be as quiet as if it wasn't there, right?
By default however many switches are spamming network with loads of unnecessary and dangerous data disclosing versions and features of the device.
So my HPE(Aruba) 2530 switch is broadcasting this nasty packet every 60 seconds:
64:e8:81:XX:XX:XX > 09:00:09:00:00:67, 802.3, length 79: LLC, dsap Unknown (0xf8) Individual, ssap Unknown (0xf8) Command, ctrl 0x03: Unnumbered, ui, Flags [Command], length 79
Within which I can see full model name, full firmware version number and even internal hostname of the switch. It was worse at first until I disabled lldp, which was outputting much more info.
However I cannot find any option to disable this particular broadcast. It appears on default vlan only as far as I can tell, but that doesn't mean you can't see it in promisc mode.
Searching manuals for LLC, DSAP, SSAP didn't produce any results.
Any help here?
By default however many switches are spamming network with loads of unnecessary and dangerous data disclosing versions and features of the device.
So my HPE(Aruba) 2530 switch is broadcasting this nasty packet every 60 seconds:
64:e8:81:XX:XX:XX > 09:00:09:00:00:67, 802.3, length 79: LLC, dsap Unknown (0xf8) Individual, ssap Unknown (0xf8) Command, ctrl 0x03: Unnumbered, ui, Flags [Command], length 79
Within which I can see full model name, full firmware version number and even internal hostname of the switch. It was worse at first until I disabled lldp, which was outputting much more info.
However I cannot find any option to disable this particular broadcast. It appears on default vlan only as far as I can tell, but that doesn't mean you can't see it in promisc mode.
Searching manuals for LLC, DSAP, SSAP didn't produce any results.
Any help here?