Robert a écrit :
1. Leave your current working LAN untouched.
2. Physically connect your desktop PC and the older laptop with a
rollover cable.
3. Create a second network on your desktop PC using eth0. 192.168.2.1
would work fine.
4. Add the laptop to the new network, assigning it 192.168.2.2 (or
whatever)
At this point, you should be able to ping the desktop from the laptop
and vice versa.
<snip>
First of all, I want to thank everyone here for the contributions.
I spent the best part of yesterday evening and this morning
experimenting, and here's a nice solution I found.
Desktop PC: as described above, e. g. leave the current working LAN
untouched, then configure the Ethernet card for a 192.168.2.x subnet.
Add the laptop to this new subnet, and connect it to the desktop PC with
a crosslink cable.
Now, I took advantage of some nicely preconfigured iptables rules in the
administration tools:
# system-config-securitylevel-tui
*** Firewall Configuration ***
Security Level (*) Enabled
> Customize
Trusted Devices: [*] eth0 [ ] wlan0
MASQUERADE Devices: [*] eth0 [ ] wlan0
***************************************
# service iptables restart
Result:
1) My 192.168.2.2 laptop can connect to the internet, using the desktop
PC as gateway.
2) 192.168.2.2 can ping any 192.168.1.x machine transparently.
3) Reversely, any 192.168.1.x machine can ping the 192.168.2.2 laptop.
Conclusion: a huge step for me, a small step for humanity :oD
Cheers,
Niki
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