Create Outbound Rules

Click ADD RULE.

The priority is used to control the order in which the firewall rules are processed, starting from 0. GCP uses a default of 1000. In this example, we will first set the Egress rule to allow all outbound traffic, so we will change this to 0.

Set the Direction of traffic to Egress and Action on match to Allow.

Expand the Target Type menu and select All instances in the network.

For the DestinationIP type select IPv4.

For the Destination IP ranges, enter 0.0.0.0/0 to allow outbound traffic to any destination.

Toggle the Protocols and ports option to Allow all.

Click CREATE.