Same user, 2 devices (one 1090, one 978), combining stats

[abcd567]

@SweetPea11

My desktop is on network 192.168.178/24 and I can SSH to a Pi on network192.168.80/24

192.168.178/24 and 192.168.80/24 are NOT two different networks.

These are two different IPs on same network.

[SweetPea11]

@abcd567

192.168.178/24 and 192.168.80/24 are NOT two different networks.

These are two different IPs on same network.

Network 1 is 192.168.178 and network 2 is 192.168.80

How are these the same network?

There is a router connecting them.

S

Edit. Fixed typo in network number.

[LawrenceHill]

@abcd567

192.168.178/24 and 192.168.80/24 are NOT two different networks.

Note there are only 3 octets in those addresses.
192.168.x.178/24 and 192.168.x.80/24 would be on the same network, however 192.168.178.x/24 and 192.168.80.x (which I think is what @SweetPea11 meant) are indeed on different networks.
Different networks are fine provided you have the routing set up correctly.

[abcd567]

Can you ssh to a Pi at your home from a computer at your friend’s home, without opening port at your home router or setting up a VPN?

Your home network and your friend’s home network are not the same network. That is what I meant.

[geckoVN]

/24 defines the range of the last octet as being 0~255.

@SweetPea11

There is a router connecting them.

Isn’t that what a router is for - connecting two different networks!

[SweetPea11]

@LawrenceHill

Different networks are fine provided you have the routing set up correctly.

Yes!

@abcd567

192.168.178/24 and 192.168.80/24 are NOT two different networks.

These are two different IPs on same network.

No.

@abcd567

Can you ssh to a Pi at your home from a computer at your friend’s home, without opening port at your home router or setting up a VPN?

Of course not as that brings in RFC1918 (as amended) private address space (not unique), NAT, ALGs etc.

Not really relevant to your previous statement

@abcd567

The computer from which you are trying to SSH to the Pi must be connected to same Local Network/Router as the Pi.

S.

[abcd567]

@abcd567

The computer from which you are trying to SSH to the Pi must be connected to same Local Network/Router as the Pi.

@SweetPea11
Please read again what I have written.

It says “same Local Network/Router”, which gives two options Either “same Local Network” OR “same Router”. You have simply ognored the “same Router” option, and focusing only on “same Local Network” option. You should consider my statement in full, not in part only.

[SweetPea11]

@abcd567

You have simply ognored the “same Router” option, and focusing only on “same Local Network” option. You should consider my statement in full, not in part only.

This is getting seriously off topic.

I will simply finish my comments by saying that the PC I use to SSH is on a Local (Area) Network and the Pi is on a different Local (Area) Network.

These two LAN segments are NOT connected to the same router.

To quote Douglas Adams “So long and thanks for all the fish.”

[abcd567]

@SweetPea11

I will simply finish my comments by saying that the PC I use to SSH is on a Local (Area) Network and the Pi is on a different Local (Area) Network.

These two LAN segments are NOT connected to the same router

 

Thanks. I also dont want to continue discussing this off topic issue, and want to close it, with following comment:

As far as I know, SSH between two independent LANs, each connected to a different router, is possible only if the two routers have some arrangement of interconnection, possibly through a VPN, or may be through a third router or through a server.

If you are able to SSH from one Local Network to another Local network, both on different routers, and without any of the arrangements which I have described above, then I will be glad to know the details, as it will be a valuable addition to my networking knowledge, which is only basic. Thank you in advance.