Firewalling certain IP ranges

Linux Advanced Routing and Traffic Control

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Hi,
I have a linux router which is connected to a local network and the internet (eth0 and eth1). My local network (eth0) consists of two IP ranges, which are assigned by a DHCP server on my router - 10.0.0.2-10.0.0.19 for trusted clients (MAC addresses are known) and 10.0.0.20-10.0.0.254 for untrusted clients (MAC addresses are not known). These two ranges share the same physical network, which is partly wireless, hence the trusted/untrusted hosts setup.


Some trusted clients are on the wireless network, most are on wired. All untrusted clients are on the wireless network.

How can I provide some services, but no internet access to untrusted hosts, yet still allow trusted clients on wireless to access the internet (clearly I cant simply firewall off the access point)?

Thanks in advance,
Patrick
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