Hallow all,
I have a network numbering/routing question.
I have a pretty standard home network with a linux firewall/NAT box feeding a hub to what is is usually 3-5 machines.
Can I eliminate the hub and use 3+ nics on the firewall box and 'how' would I number them???
I have set this up once before but I find that the various hosts connected to the firewall can not see or access each other, but all can access the net.
what am I doing wrong below ?
Internet==> firewall/NAT Machine [with multiple Nics and CrossOver CAbles to Hosts] ==>
==> eth0 [ 10.0.0.1/255.0.0.0] ==> host-1 eth0= 10.0.0.2/ 255.0.0.0
==> eth1 [ 172.16.0.1/255.255.0.0] ==> host-2 eth0= 172.16.0.2/255.255.0.0
==> eth2 [ 192.168.0.1/255.255.255.0] ==> host-3 eth0= 192.168.0.2/255.255.255.0
The method above did now allow each host to see & access each other, they could access the internet.
Could the following Alternative Numbering Work ??
Internet==> firewall/NAT Machine [with multiple Nics and 'CrossOver Cables' to 'multiple' Hosts] ==>
==> eth0 [ 172.16.0.1.255.255.0.0] ==> host-1 eth0= 172.16.0.2/255.255.0.0
==> eth1 [ 172.17.0.1.255.255.0.0] ==> host-2 eth0= 172.17.0.2/255.255.0.0
==> eth2 [ 172.18.0.1.255.255.0.0] ==> host-3 eth0= 172.18.0.2/255.255.0.0
Thanks in advance for any guidance you can give me.
Johnny
I have a suggestion, use brctl http://bridge.sourceforge.net/howto.html
and bind eth0, eth1, and eth2 to the same logical device (br0) and then the three nics act like a three port bridge. You only configure one ethernet device (br0) for all three hardware ports.
ed
