[Nottingham] A strange network switch: Does a 'concentrator'/'mux' network switch exist? - "port isolation"

[Aaron Jackson]

I don't believe such a device exists. If it did, it would be quite niche
and likely cost more than a managed TP-Link switch (~£250).

BTW, it is worth mentioning that many wireless access points, including
domestic, often have a feature called "AP Isolation". This allows all
wireless devices to talk to any wired devices, but not with other
wireless devices.

Aaron


Martin via Nottingham writes:

> Aaron,
>
> Thanks for that. The "port isolation" is exactly what is needed, albeit
> without the complete flexibility of the TP-Link example for my case.
>
> So... A "managed switch" with that feature is needed or... Are there any
> devices already 'hard wired'?...
>
> I'd guess we have super-flexible managed switches such that there would
> not be any need for the much lower volume hard-wired 'specialist' stuff.
>
>
> Thanks, a good solution with quite a few console clicks...
>
> But easier than a gazillion VLANs!
>
>
> Cheers,
> Martin
>
>
>
> On 17/08/16 20:15, Aaron Jackson wrote:
>> TP-Link seem to have a similar thing called port isolation. Their gear
>> is quite a bit cheaper than Cisco's, so maybe be worth looking into.
>> 
>> http://www.tp-link.us/faq-525.html
>> 
>> Aaron.
>> 
>> 
>> Aaron Jackson via Nottingham writes:
>> 
>>> Martin,
>>>
>>> My CCNA might finally be coming in handy for once. As I understand it,
>>> what you want is possible on any switch which supports enough VLANs to
>>> assign one per port. Any Cisco Catalyst switch is able to do this. Some
>>> of the Netgear "managed" switches are capable of this too. Just put port
>>> 48 in all VLANs and make sure IP forwarding is disabled on the server.
>>>
>>> Hope this helps,
>>>
>>> Aaron.
>>>
>>>
>>> Martin via Nottingham writes:
>>>
>>>> Folks,
>>>>
>>>> Here's an interesting one which would be very good if this exists:
>>>>
>>>>
>>>> Normal network switches will route data packets from any ethernet port
>>>> to any other on the switch...
>>>>
>>>> Instead...
>>>>
>>>>
>>>> Are there any switches that can be restricted so that say:
>>>>
>>>> Physical ports 1 to 47 ONLY connect to physical port 48;
>>>> Similarly, port 48 can reply and broadcast to all ports;
>>>> Ports 1 to 47 can not connect amongst themselves.
>>>>
>>>>
>>>> This is to have a number of devices connect to a server such that each
>>>> device is physically unaware of any other device connected to that server...
>>>>
>>>>
>>>> Is there any such kit available?
>>>>
>>>> Cheers,
>>>> Martin