I recently purchased a 3560-X and i am just in the process of setting it up, my question is there a recommended way i should connect it to my ASA. Just playing around i was able to setup a routed port on the 3560 and connect it to the ASA and everything works great but I also have the security plus licenses on the ASA so I could trunk between the two.
Any options which would be a better option? Routed or Trunk?
The ASA can run in routed mode (default) or transparent mode (layer-2 bridging). When you set it in routed mode,there is no need to trunk the port. The ASA is acting as a router with the inside interface subnet being different than the outside. So, you should be good to go.
Thanks for the quick reply, sorry i should have expanded a bit more, the 3560 is doing all the routing and switching for all my vlans and then I would like internet bound traffic forwarded onto the ASA.
Ok, so the switch has all the SVIs and is routing between the vlans for you. Now, you have a layer-3 link between the switch and the inside interface of the firewall (could be /30). You also need a subnet between the outside interface and the provider. (/30, 29, etc...) on the firewall you need the default route towards the service provide and static router towards your 3560 for the vlans..
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