Connection between A and B work fine.
The only think that I cannot build is the connection with PC C (I manually set up the ip address, etc..) What do you mean by
You could configure the two ethernet ports on PC A as a bridge or you could again configure the second ethernet port as shared.
Is bridge synonymy of "shared to other computers"? If yes, every time that I do that, it generates an address in 10.40.0.1 while this address has been on PC B. On PC A, I set the card wired to PC B manually to 10.42.0.2 with a gateway 10.42.0.1 (the interface shared on PC A). This works fine. The second interface on PC A (wired to PC C), set it to 10.42.0.3 I tried without a gateway and with gateway 10.42.0.2 (and 10.42.0.1) On PC C, I set (manually) the IP 10.42.0.5, with a gateway 10.42.0.2 or 10.42.0.3. THis does not work.
On 3/1/25 7:03 AM, Patrick Dupre via users wrote:
I have 2 PC A and B. Before A what connected to the world wireless and PC B was connected through an internet cable (wired). PC A lost its wireless connection. Now PC B is connected to the world through a telephone and I want to have PC A connected also through the same internet cable and access to the world.
On PC A I activated Automatic DHCP and on PC B and the internet card 10.42.0.1 shared to other computers (IP) It connects inet 10.42.0.1 netmask 255.255.255.0 broadcast 10.42.0.255
but PC B cannot connect (connection fails)
I just tested this setup and it works with no problem. I don't have wifi on the desktop, just two ethernet ports, but it should be the same. One ethernet port goes to "the internet" (internal network, but same). The other ethernet port I configured in the Gnome network manager as "shared to other computers". I then plugged a laptop into that ethernet port and it had internet access. So I'm not sure where you went wrong.
For PC C to have access, you have a couple of options. You could configure the two ethernet ports on PC A as a bridge or you could again configure the second ethernet port as shared.
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