I have to make a configuration like following:
PC1 ---- PC2 ---- PC3
The point of this is that I want to send data from PC1 to PC3 but doing something with the data in PC2.
I have 3 ubuntu computers. I have already configurated the end-points with:
sudo ifconfig eth0 *IPofPC1or2* netmask *netmask* sudo route add default gw *IPofPC2* eth0
For the PC2 I think I have to assign an IP address to eth0 (in the same subnet of PC1) and eth1 (in the same subnet of PC3) but then, how can I connect the gateway? I am not sure. I tryed to make the default gateway to the PC1 (in eth0) and to PC3 (in eth1), but if I make ping from PC1 to PC3 it's not working.
I hope someone can help me! :)
Thanks so much!!