I am replacing an Cisco 4006 with a Routing module. The replacement switch will be an stack of one 3750G and two WS-C3750V2-24PS-S
The Routing module of the 4006 has 192.168.1.3 as IP address. And does some routing to two gateways. all traffic for network 10.0.0.0 goed to 192.168.1.1(Cisco 2600) and the rest goes to 192.168.1.4(Firewall).
Both devices are connected to the routing module of the Cisco 4006.
How would I need to configure the new 3750 stack so it will function as a router and will be able to be used as gateway. And how to connect the other devices to the 3750 stack
I am guessing that L3 routing module that you have in chassis right now is 4232-L3 blade.
For 3750 to route the traffic similarly as 4006:
1) Enable "ip routing" on the switch.
2) Add two routes on the 3750 which should be there on 4006 as well.
ip route 10.0.0.0 255.0.0.0 192.168.1.1
ip route 0.0.0.0 0.0.0.0 192.168.1.4
2600 & Firewall will be connected to the switch (any two ports in the same vlan, let's say vlan 1).
The IP address 192.168.1.3 will be given on the SVI of vlan 1.
int vlan 1
ip address 192.168.1.3 255.x.x.x
Rest of the devices continue to be in the same vlan as they were on 4006. So, just configure the same vlans on WS-C3750X-24P-S as you have on 4006, configure the ports in the app vlans & connect the devices.
