Best way to perform a network separation with out the use of VLAN's
I have a WAN link connected to a Cisco 1700 which is connected to a hotbrick firewall which connects to a Cisco 2950 swich where all the users are connected to.
I have two offices on the same subnet. One of those offices want me to seperate them from the existing subnet and place them on their own subnet.
Thus far I moved those users from the existing switch on to another switch. And I have a cisco 1841 router that I can use.
What is the best approach (without using Vlans ) to separate red office from exisiting blue office