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

[Aaron Jackson]

While on the topic of networking, I've recently been wanting to get my
DECstation 5100/200 connecting to the net from Ultrix. Has anyone got a
network hub with both 10baseT and 10base2 ports which I could borrow? Or
some other media converter?

Unlike the VAXstations, the DECstations do not have an AUI port which
keeps things simpler.

Thanks,

Aaron.


Martin via Nottingham writes:

> On 17/08/16 23:07, Jason Irwin wrote:
>> On 17 August 2016 at 20:47, Aaron Jackson via Nottingham
>> <nottingham at mailman.lug.org.uk <mailto:nottingham at mailman.lug.org.uk>>
>> wrote:
>> 
>>     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.
>> 
>> Yup. It's often just a simple checkbox these days, although the iptable
>> rules are not hard to find.
>> 
>> I /think/ some Microtik routers might be able to do what you want,
>> Martin. Might be an idea to noise-up Andy Fletcher on the LBW list.
>> I may be misremembering though.
>
>
> Thanks all, good comment.
>
> Great shame we haven't greater bandwidth for WiFi or something broadband
> spread-spectrum so that we could do away with all these pesky cumbersome
> wires... Then again, the encryption and signal processing could well
> require a very un-green extra power station if widely used!
>
>
> The main motivation is to keep multiple devices guaranteed separate on a
> wired network to thwart at least one malware vector, and also to FORCE
> file sharing to be possible only by means of a central server.
>
> Doing that without the need for VLANs looks very nicely plausible ;-)
>
>
> Thanks,
> Martin