I am lost.
I had a configuration with was working, but my usb WiFi doogle does not work
anymore.
The configuration which was working
Doogle on PC A with 2 ethernet cards.
One connected to PC B: a laptop
one connected to PC C
Now, The laptop PC B is connect to a wifi mobile.
It works
wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.43.115 netmask 255.255.255.0 broadcast 192.168.43.255
I set the ethernet interface "shared to other computers"
enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.42.0.1 netmask 255.255.255.0 broadcast 10.42.0.255
Now I am trying to connect this ethernet card to PC A
From the network interface, It tried
"shared to other computers"
and
"Automatic (DHCP)",
but none of them allow me to make the connection
(connecting for ever).
Hence, I tried manually
10.42.0.5 255.255.255.0
It connected
enp1s0 flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.42.0.5 netmask 255.255.255.0 broadcast 10.42.0.255
But the 2 computers do not talk together
From PC B to PC A:
ping 10.42.0.5
PING 10.42.0.5 (10.42.0.5) 56(84) bytes of data.
From 10.42.0.1 icmp_seq=1 Destination Host Unreachable
traceroute to 10.42.0.5 (10.42.0.5), 30 hops max, 60 byte packets
1 Sappho (10.42.0.1) 3068.823 ms !H 3068.691 ms !H 3068.614 ms !H
route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.43.1 0.0.0.0 UG 600 0 0 wlp2s0
10.42.0.0 0.0.0.0 255.255.255.0 U 100 0 0 enp3s0
192.168.43.0 0.0.0.0 255.255.255.0 U 600 0 0 wlp2s0
From PC A to PC B:
same behavior
route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.42.0.0 0.0.0.0 255.255.255.0 U 100 0 0 enpls0
192.168.122.0 0.0.0.0 255.255.255.0 U 600 0 0 virbr0
For now all my tests to connect to PC C failed.
I expect that I clarify the situation
> Sent: Saturday, March 01, 2025 at 10:38 PM
> From: "Samuel Sieb" <sam...@sieb.net>
> To: users@lists.fedoraproject.org
> Subject: Re: internal network
>
> 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)
> >
> > What am I doing wrong?
>
> Your description is very unclear.
> PC B is connected through a telephone??
>
> Assuming it's actually a normal ethernet connection to the internet, PC
> B will need two ethernet cards. I don't understand how you have it
> connected right now.
>
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