I
Igorian
The ICS gateway machine is effectively a router. It will have two ip addresses, the public one for the modem and the private network gateway address (which with ICS, needs to be 192.168.0.1). ICS does the network translation and acts as a DHCP server so clients can receive dynamic ip addresses. Static ip works too, but as far as I am aware, you need to configure the 192.168.0 subnet.
In theory then, you could limit the bandwidth of the LAN ip addresses
In theory then, you could limit the bandwidth of the LAN ip addresses