I'm hoping someone can provide me some guidance on setting up a dual-firewall
architecture. This is my first experience using two firewalls together and I'm a
little fuzzy on the correct way to set up the IP addresses on the various interfaces.
First let me describe the environment.
------------
Internet
------------
|
-Serial0/0-
2620 router
---FE0/0---
|
|
---Port1-------------------------
Nokia IP330 with 3 ethernet ports
---------Port2-----------Port3---
| |
| |
-----NIC1------- --------
Novell BorderMgr DMZ
Firewall/Radius --------
-----NIC2-------
|
|
----------------
Private Network
----------------
My first thought was that all the interfaces would get public IPs except for NIC2
which would be a private address. The BorderManager box will be doing NAT'ing and
Radius authentication. FE0/0, Port1, Port2, Port3 and NIC1 are all public addresses
on the same subnet. Serial0/0 is an IP from my ISP and NIC2 is a 10.X.X.X IP. Am I
correct with this config or is the cheese sliding off my cracker? Any help would be
greatly appreciated. Thanks.
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