SBS 2003 LAN & Internet Access for Wireless Users

We currently have an SBS 2003 server with two NICs.

Our LAN users are connected via the first NIC and the ADSL router sits on the second NIC. The server assigns DHCP, runs Exchange, ISA etc.

We enabled wireless on the ADSL router (3Com OfficeConnect ADSL Wirelsss 11g Firewall/Router) and wireless users can browse the internet without any problems. DHCP is turned on in the router but we would like the wireless users to be able to access the LAN (server) also.

I assume we have to turn DHCP off on the ADSL router but how do we get the users to browse the lan via wireless ? Ideally, we would also like to get rid of ISA and just route every internet request from the server via the ADSL router. We will still have users connected via ethernet rather than wireless.
comsultAsked:
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Rob WilliamsCommented:
With your present configuration your wireless users are on the WAN/Public side of the SBS. It would not be safe to allow them access as you would be granting everyone on the Internet the same rights. 3 options. (I would go with 1 or 3):
1) set up a VPN for the wireless users to connect to the SBS
2) change the SBS configuration to use 1 NIC. Make sure DHCP is disabled on the Wireless unit. Users will get an IP from the server
3) set up a separate wireless as an access point, rather than as a gateway, connected to the internal switch.
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comsultAuthor Commented:
Thank you, we had been thinking of adding an access point on the internal switch, we'll go with that method. Thanks for your help.
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Rob WilliamsCommented:
Very welcome, thank you comsult.
Cheers !
--Rob
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