I have a situation that needs some clarification.
I have three sites (1,2,3). The core switch do Inter-vlan routing. Site 1 and 2 must access the internet via ISP1, while site 3 will access internet using ISP2. All switches are Catalyst 3750. However, only the CORE is acting as layer 3 and the rest of the switches are L2. How do I make all clients in site 3 to access their own internet (ISP2) while still participating in inter-vlan routing with the core.
To clarify this, for e.g. vlan 10 in site 1 and 2 will access ISP1 and vlan 10 in site 3 will access ISP2. Inter-Vlan routing is working perfectly, but how to I restrict clients in site 3 to only access ISP2?