I need internet access for 25 PCs but only 10 IP addresses. I have a
Cisco800 router, and a Teldat modem attache to a 64k frame relay
connection. The PCs are all running WinXP Pro in the workstations.
What´s the best available configuration?
I have installed two network cards in one PC and I´m trying to enable
ICF/ICS in ControlPanel/Network/Advanced but the service related
failed to initialize.
I tried to initialize the service using the MMC, but it shows "Error
109" and then "Error 230", both related with the "canalization".
Please suggest me an appropiate configuration or the way to enable
ICF/ICS.
Thank you.

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Request for Question Clarification by tisme-ga on 10 May 2003 15:41 PDT

10 Internet IPs, or 10 local network ips?

tisme-ga

I don't know anything about the Cisco800 router, but it should do what
you want. I defineatly wouldn't run ICS for 25 computers.

Your internet should connect to a switch. The router is connected to
the switch and will be assigned one of your 10 IPs. you then connect
the PCs to hubs/switches that are connected to the router.

(I put a switch above the router so that you can also conenct several
PCs directly to the interent without the router. This is useful if you
have a PC that needs to have access externally such as with PC
Anywhere. You can have a PC with 2 NICs, one connected to the router
for internet access and one connected to the switch just for external
access._

Do you want/have to route all traffic through that one PC? why?
The IP thing has me confused too ... you can use NAT and get all the
IPs you want.. or you're gonna have to get into subnetting those 10
IPs and create many small networks.  You can get this whole thing
going with a hub.

If you don't need public IP adresses for the 25 workstations, then set
up a network of private IP addresses behind the router.  Enable NAT on
the router, and connect the router to your private network using a
switch instead of a hub.

ICS is best used for 5 or less workstations.

it seems to me that you just need to enable Network address
translation (NAT) on your router. I would assume that it has this
function available, but maybe not.