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How to connect a Layer 3 switch to the internet

Optical network knowledge brief Published 02 Sep 2023

Prepared for preliminary research by the COETZER OPTICAL knowledge desk. Confirm compatibility, loss budgets and installation requirements against current standards and product documentation.

Solved: Setting up internet on Layer3 Switch Layer 3 switch doesn´t support NAT. So you cannot use private IP addresses.

How to connect a Layer 3 switch to the internet

L3 Switch to internet connectivity

I have a Cisco Switch 3850X which is totally fibre interfaces. I have created 5 vlan and there is intervlan routing at L3

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This reference is intended for preliminary optical-network research. Compatibility, link budgets, installation methods, test limits and applicable standards must be verified for the specific project.

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