Looking up ip's

[m3rlin]

Hello, i need some advice on this, here is my scenario.

I have a Router (Frame Relay) ---> Smoothwall ---> my Network

Im not sure how to get the external ip trought the Router, this is a Frame Relay technology, i will try to contact my ISP and ask them, but if anyone have an ideia :)

Know my real problem is this. I want to run the DHCP Server on Smoothwall, and in my network i have Linux and Windows Clients, i want to be able to ping, and use VNC, using there names insted of ip's.
I know if i creat a static ip network, i can configure WINS or dns and give all ip's a name, but i was wondering if there is another way, an automatic way, don't want to edit manualy c:\winnt\....hosts or /etc/hosts, to resolve the names of the machines.

Thanks

[popasmuerf]

What exactly do you mean w/r to getting an IP through the router? The only problem frame-relay would pose would be if you are trying to use something that makes use of broadcasts or multicasts.

[m3rlin]

well i guess your correct.

All i have to do is, to configure the firewall to redirect the requests for the router.

The firewall won't get the external ip, because thats what the router is doing.
My fault.

so this means that i need to configure the 2 network cards in the same network. such

First NIC 192.168.1.1 (recives packges from internet)
Second NIC 192.168.1.2 (distribuits the network packges for the lan, and recives the requests)

Is this correct????

[popasmuerf]

If I read you correctly the router is on the edge of you network, the firewall is between your edge and your network.




If this is the case, the NIC connected to the router and the NIC connected to your LAN will need to be in two different networks, otherwise it will not work.

well i guess your correct.


First NIC 192.168.1.1 (recives packges from internet)
Second NIC 192.168.1.2 (distribuits the network packges for the lan, and recives the requests)

Is this correct????

It all depends on how your fire wall looks at "forwarding".
If it treats forwarding as an act of routing or just passing packets off.
If routing is the case, the NIC connected to the router and the NIC connected to your LAN will need to be in two different networks, otherwise it will not work. Basically what you would be doing is creating another network between you fw and your router. In my experience this has always been the case.

Is your router using NAT/PAT ? If so then you most likely will have the cards being represented by two different networks.

Try it out your way, it just may work.

[techwise]

On smoothwall you have a red interface (connected to the net) an a green (lan) one. The red one should be set per the instructions from you isp (ip address given) or to be a dhcp client. The green interface can be something like 192.168.0.1. . .

You then set the workstations to the ips' you want them to have on the 192.168.0.1. network (use static to make port forwarding easier) and use smoothwall to set up the port forward parameters.

In your case the smoothwall is actually your "router".

M

[m3rlin]

Thanks for the replys.

i have a router, that she recives the internet ip (static), and have other ip (local network)

for example

Router:
Net address = 203.25.23.65
Lan address = 192.168.0.252

now i have a firewall, that will be
Red Interface = 192.168.0.1
Green Interface = 192.168.0.2

I want my firewall and proxy, to became between the router and lan, so it can provide security.

how can i make this work? Must configure my router to forward packges directly to the firewall, and then the firewall forward to the lan?

and all the requests from the lan, the firewall will forward to the router.
Is this possible?

[techwise]

Green and red must be on different networks.