I need some advice regarding some basic routing and switching. Attached is a basic logical diagram that depicts my core network.
I have a public /21 assigned from my ISP that I need to subnet into /24's at my core. For the example's sake, we will say this public /21 is 220.127.116.11/21. Here is how I envision this working.. please step in and correct me with suggestions or if anything is wrong:
* Gi0/1 on the router will have an IP address of 18.104.22.168/30. This will be a small transit network to connect the core.
* The other end will be connected to a SVI on my core, VLAN 2, 22.214.171.124/30.
* Configure a static route on the 3865:
ip route 126.96.36.199 255.255.248.0 188.8.131.52
* At this point, I need to be able to break down the /21 into smaller /24's. As an example, we will use VLAN3 (184.108.40.206/24). On the core:
ip address 220.127.116.11 255.255.255.0
Does this seem like a valid configuration? I am unsure as to the static route that was configured on the 3865 above. Ideally, I do not want to have to add a new static route for every /24 that I subnet on the 3865. Can someone help me understand if this is the correct way to configure this? Please let me know if you need more information.