IP Routing

[Vimal Upreti <Vimal@xxxxxxxxxxxxxx>]

Hi,
I'm installing Raptor Firewall 4.1 EC on Alphaserver DS10 with Tru64Unix
4.0F.
I'm using 3 NICs (Internal,External, DMZ). All 3 interfaces I configured
through "netsetup".
Internal IP: 128.1.3.20       255.255.0.0
External: 212.72.22.154    255.255.255.248
DMZ: 212.72.22.155          255.255.255.248

Router IP:212.72.22.153     255.255.255.248
I configured a client (PC) with 128.1.0.0 Net Address and connected with
Alpha DS10 directly on Internal I/F through Cross Cable.
I can Ping to all 3 interfaces (internal, external, DMZ) through this
PC, But unfortunately I 'm unable to ping to Router connected to the
external I/F i.e.-212.72.22.153

On PC the gateway defined is (internal I/F of Alphaserver)
i.e-128.1.3.20
On Alphaserver I have configured it as "gated" with static Routes:
0.0.0.0    gateway 212.72.22.153

I think there is some problem with the definition of Routes and IP
forwarding among the NICs.
Can you please help me out in finding solution to this problem.

Thanks in advance.
Regards.
Vimal