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Small Network Install - 13.Mar.2008 9:43:30 PM

stamati

Posts: 4
Joined: 21.Apr.2005
From: UK
Status: offline

Hi. I need to configure a small network with ISA 2004. The network is as follows.

Internet ----- ROUTER ------ ISA ----- Wireless router with built in hub

The internal pc's that belong to us will log in using the built in hub that comes with the wireless router. Also the wireless users will be using the wireless!!

The wireless router is a simple netgear home router!

Any thoughts on configurations will be really appreciated

Post #: 1

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RE: Small Network Install - 14.Mar.2008 4:52:16 AM

royh

Posts: 318
Joined: 23.Feb.2007
From: Lebanon
Status: offline

What's your ROUTER type?

_____________________________

Roy Haddad,M.Sc
CCNA, MCSE 2003 Messaging & Security,C|EH
www.foxminds.com

(in reply to stamati)

Post #: 2

RE: Small Network Install - 14.Mar.2008 5:31:46 PM

gbarnas

Posts: 155
Joined: 27.Apr.2005
From: New Jersey
Status: offline

You need to configure your wireless device in AP mode, not Router or Gateway mode. Basically, you need to connect the ISA to the switch port, not the WAN port, and force the wireless devices to use the internal ISA interface as their gateway. If that isn't possible, (not personally familiar with the Netgear device), you can likely add a static route in the netgear to forward all traffic to the ISA.

Many home wireless gateways can be converted to routers or access points by configuring certain parameters.
Loose translation:
Gateway = NAT between LAN and WAN
Router = ROUTE between LAN and WAN
AP = WAN port becomes part of the LAN - no routing.

Barring this configuration capability, you will connect ISA to the WAN via a crossover cable, enable ROUTING mode (disable Gateway mode, which turns off NAT) and configure a static address on the WAN port . You'll need to use two subnets in this configuration (ie: 192.168.0.0 on the WAN, and 192.168.1.0 on the LAN) Of course, you'll need to reference both subnets on the ISA network configuration, and set a route in ISA for the netgear's WAN interface for the LAN subnet.

Not simple using method 2! Potentially complex using method 1. I'd eBay the router and get an access point, which would eliminate all the issues. ;) An AP would be transparent to ISA.

Glenn

(in reply to stamati)

Post #: 3