timmy1982
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1 year ago Checkout this video
1) Introduction: Explain what a GRE tunnel is and why it is used.
2) Updating the MTU: Discuss the importance of the MTU in a network and how it can affect the performance of the GRE tunnel. Explain how to update the MTU on a router.
3) IP OSPF cost: Discuss the role of the OSPF cost in routing decisions and how it can be used to influence the path that traffic takes through a network.
4) Explain how to update the OSPF cost on a router.
Building the GRE tunnel: Walk through the process of configuring a GRE tunnel between three routers. This could include setting up the tunnel interfaces, configuring the tunnel source and destination, and enabling OSPF on the tunnel interfaces.
5) Run command: Show a run command of the three routers being built and how they are connected through the GRE tunnel.
Conclusion: Recap the steps taken to update the MTU, IP OSPF cost, and build a GRE tunnel between three routers.
This Ansible playbook automates the process of updating GRE tunnel configurations on Cisco IOS devices. It allows users to easily make massive configuration changes, such as modifying tunnel parameters or adding or removing tunnels, without manually logging in to each device and making changes manually. This can be especially useful in situations where the ACAS mission dictates changes to the network configuration, as the playbook can be used to quickly and consistently apply these changes across multiple devices. Simply specify the desired changes in the playbook, and the playbook will handle the rest.