Simple 4 Router Setup in GNS3

Basic Layer 3 setup using 4 routers:

Step 1) Build the physical topology:

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Basic Frame-Relay Setup in GNS3

Frame-Relay is an older technology which is getting faded out with newer more robust protocols such as MPLS (Multiprotocol Label Switching) and DMVPN (Dynamic Multipoint Virtual Private Network). However, once in awhile you might still come across it or might need to setup a lab where Frame-Relay is involved. Below is a simple Frame-Relay Setup using GNS3:

Step 1) Build your network:

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