Using WRT54GS as Gateway

[jsbouchez]

hi, anyone out there!!

This is my scenario:

The ADSL modem/router (IP:192.0.0.1) is connected to PC1 (wired to an Ethernet Switch).

The WRT54GS should have three Win98SE client PCs (actually wired to Switch) with static IP's (192.0.0.132/4/9) and ADSL Router Ip address as their Gateway and DNS servers.

This is what I need:

I do need to connect these 3 client PCs via WRT54GS (wired from switch to its WAN port) to the ADSL Router, but I don't have any idea on how should I set up any parameters at all! My guess is that WRT54GS should be working as a gateway to the 3 PC's, and these PC's should be in a subnet. But I do need these PCs to see the rest of the network so I guess I should use NAT.

Can anyone tell me if I am way too far from being coherent? Any help? Any tutorials I should read first?

As you may well see... I'm a newbie!!
ThanX

 

[InlineFive]

I highly doubt that your ADSL modem is also a router, I rarely see modems with this functionality. Regardless, I would setup your network like this so that the WRT54GS can protect your clients.

ASDL modem <--> WRT54GS (WAN) <--> Win98SE clients (into LAN ports)

What I would do is configure your clients to use DHCP. That way the WRT54GS will handle IP Addresses, Subnets, NAT, DNS, Gateway, you name it. Just plug it in, spend 5 minutes configuring it and go.

 

[Mogadon]

I agree with InlineFive, having the witch is pretty pointless and it makes sense just to use the WRT. I

It's possible your ADSL modem is a router, I know all the BellSouth DSL modems are routers.

 

[JackMDS]

Some of the Modem/Routers can be configured to work as a modem only.

So if yours can be configured as a Modem only use the topology as suggested by InlineFive,

Otherwise read this page, Using a Wireless Cable/DSL Router as a Switch with an Access Point

:sun:

 

[jsbouchez]

thanx Inline!

as a matter of fact, I cannot get rid of the switch as the ADSL, WRT (with its clients) and App. Server are all on different levels of the building! I'd like to add an image depicting how they're located, but I really don't know how... =(

thing goes like this:

1st floor --> WRT + W98 Clients with 802.11g WiFi PCI Cards (not connected yet)
2nd floor --> ADSL connected to a 4 port router (IP:192.0.0.1 connected to switch on 3rd floor) + 5 PCs with static IP 192.0.0.xxx connected to switch on 3rd floor
3rd floor --> 10 PCs with static IP 192.0.0.xxx connected to switch (Default Gateway / DNS: 192.0.0.1)
4th floor --> 5 PCs with static IP 192.0.0.xxx connected to switch + File server (IP: 192.0.0.245) + App. Server (IP:192.0.0.254)

Main goal: connect W98 clients so that they have InertNet access and see the rest of the network shares and servers.

thanx again 4 your help!

 

[nweaver]

1. disable DHCP on wrt
2. Assign LAN ip in 192.0.0 range (btw, do you own those? as 192.0 isn't private)
3. Plug from switch to LAN port (not wan) of WRT

 

[jsbouchez]

thanks nweaver!

btw,
1.- what should I set for WAN IP in the WRT if I connect everything as you said?
2.- should I set the WRT as "router" or "gateway"?
3.- then again, should I set DNS and Gateway in the WRT?
4.- I've just asked about Ip range, cause I din't have the least idea!

thanks again!

 

[nweaver]

any IP on the same subnet not in use (you are using static already) so that you can manage/monitor the AP
Don't se tthe wrt as router or gateway...leave all the wan stuff out of it, you are making this an AP now, so forget all IP based stuff, other then LAN ip for management.