[Dnsmasq-discuss] OT client q: both static and dhcp

wkitty42 at gmail.com wkitty42 at gmail.com
Mon Jun 28 14:50:23 UTC 2021


On 6/28/21 8:59 AM, Carl Karsten wrote:
> On Mon, Jun 28, 2021 at 7:07 AM <wkitty42 at gmail.com> wrote:
>     because the two management NICs and crossover cable are your own and can be set
>     so you always have access no matter what the other network is if you even have
>     access to another network at the time...
> 
>     in other words, you will always have your own separate and private network
>     between your two devices no matter if there is any other network connection on
>     the other NICs... this solution is a separation of your devices connection
>     between themselves and any other network... it provides you a dedicated
>     connection between your two devices always...
> 
> That isn't better, it is equivalent.

not really... it certainly keeps your ""command and control"" traffic from being 
snooped by anyone else on the wire...

>     no... you still use the venue cabling for the regular connections... the NICs
>     i'm speaking of are solely for your use between your two machines and solely
>     for
>     your use in managing your two machines when you may have to reconfigure them
>     for
>     a new network on the other NIC... if this reconfiguring is not needed, it still
>     provides you a dedicated network between the two machines without any other
>     traffic from any other network... your command and control stays within your
>     private network and the traffic you generate that needs to go externally
>     does so
>     on the existing NICs and venue cabling...
> 
> Normally there is no command and control traffic.

there is when you have to reconfigure the one device for the new network but 
ok... most of the time there isn't... that's fine... this does provide a private 
connection for all of your other traffic between the two devices, though... and 
that prevents others from snooping on your traffic...

>     you'll never know without trying it but first you need to be able to visualize
>     it and the separation it brings... i mean, you're only talking about maybe
>     another $30US investment in two NICs and another cable or two... so it isn't
>     that expensive... and if your two machines are placed close together (as i
>     assume them to be) then a 3foot to 6foot cable is all that is needed between
>     the
>     two NICs... and you can easily mark the NICs with RED coloring as well as your
>     cable with RED so you know the RED ones are the ones that get connected...
> 
> The machines are at the front and back of a lecture hall.  or a meeting room,  
> so the distance varies.

that was not really apparent but it is understandable... perhaps the venue has 
another spare cable you can use? one that you plug into only your devices for 
the private network setup i'm describing? either that or maybe directional 
wireless but that brings its own possible problems to the table...

i should have noted that i'm also looking at this from a security standpoint and 
keeping your traffic between your devices private and secure from others 
snooping the traffic...

in any case, i've tried... you can try it or not... i'm not going to try to push 
you one way or the other... with all that said, i'm out... good luck and have 
fun! ;)


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