I have two problems that I need to address:
One, I have a partial T1 with 16 IP addresses. 6 are used for severs and I can't touch them at all. Period.
The other 10 are for workstations and I need to have them firewalled. I tried to setup a LAN (10.0.0.x) and use NAT, but that's imcompatable with MSN Messanger. If someone can help me fix that, then I can go back to that simple setup.
Otherwise, I think the only solution is to try to make a "transparent firewall bridge".
For each public IP, say, a.b.c.1, a.b.c.2, and so on - I need to have the firewall translate them to an identical network on another network card. So:
a.b.c.1 -> eth0 FIREWALL eth1 -> a.b.c.1
a.b.c.2 -> eth0 FIREWALL eth1 -> a.b.c.2
...
a.b.c.10 -> eth0 FIREWALL eth1 -> a.b.c.10
The problem is, I dont think machines will understand having two copies of the same IP address, even if they are on different NIC's.
How can I do this setup?
If someone has successfully used the MSN Messanger function *WITH* file transfter, let me know - I've tried forwarding 1863, 6891 - 6901, and none of it seems to work.
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