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Allowing internet access to PC's with different subnet masks

We have a network that is rapidly approaching 255 IP devices. We have no Windows servers, so the only networking we do (on the Windows side) is PTP. I am ready to start a migration to change all the subnet masks from 255.255.255.0 to 255.255.0.0 so that I can create more free IP addresses. During this migration (which could take a month to complete), I can't cut anyone off from internet access. We have a Cisco PIX which is our internet firewall. How do I allow internet access to PC's that have different subnet masks? Currently, only the 255.255.255.0 PC's can access the internet.

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New Member

Re: Allowing internet access to PC's with different subnet masks

You need to adjust your NAT (inside) statement according to the allowed IP addresses ranges.

Attached is an example of a PIX with 3 Internal Networks that you may reference.

Hope that this is helpful.

Scott

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