Create Firewall Rules on a Google Cloud VPC Network

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Create Firewall Rules on a Google Cloud VPC Network

In this hands-on lab, we will be presented with a custom VPC that has four instances spread across three subnets with zero firewall rules created. We will configure two different firewall rules: one to allow SSH access to all instances on the network, and another one using specific network tags to only allow ICMP (ping) access to one instance, and only from a specific subnet. This will demonstrate using both wide-scope and narrow-scope firewall rules.

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Lab Info

Level

Intermediate

Last updated

Sep 20, 2025

Duration

30m

Challenge

Create First Firewall Rule

Create a wide-scope rule to allow SSH access to the entire network from all public sources.
Challenge

Apply Network Tag

Apply a network tag to the vm-2 instance which will only allow a later firewall rule to apply to that one instance.
Challenge

Confirm Implementation of Firewall Rules

SSH into various instances to confirm both firewall rules are correctly implemented.
Challenge

Create Second Firewall Rule

Create a firewall rule that will only allow ICMP traffic to vm-2, while also only allowing traffic from subnet-a as the source.

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