# Installation Overview

> If you require complex or custom routing, and have Infrastructure-as-Code for your deployments already, this is where you will find key information.

### [DIY & TERRAFORM ➜](/docs/discriminat/gcp/diy/)

If you require complex or custom routing, and have Infrastructure-as-Code for your deployments already, this is where you will find key information.

### [QUICK START ➜](/docs/discriminat/gcp/quick-start/)

For a 5-minute deployment, assuming secure defaults, from within the marketplace console itself. This will totally lock down your VPC from the get-go unless monitoring mode or appropriate FQDN-based egress firewall rules exist for outbound connections, and VMs needing to bypass DiscrimiNAT are network-tagged with `bypass-discriminat`.

### [CONFIG REFERENCE ➜](/docs/discriminat/gcp/config-ref/)

The various ways GCP-native Firewall Rules can be annotated with appropriate FQDN allowlists and traffic monitoring rules after deployment of DiscrimiNAT.

### [DEFAULT PREFERENCES ➜](/docs/discriminat/gcp/default-prefs/)

Global level preferences for controlling logs verbosity, wildcards exposure and monitoring mode.

### [LOGS REFERENCE ➜](/docs/discriminat/gcp/logs-ref/)

Fields, filters and recipes to find what you need from DiscrimiNAT's config and flow logs in GCP Logs Explorer.

### ARCHITECTURE

Pertaining to the Quick Start only. If you go down the DIY route, the architecture will be as per your design.

A DiscrimiNAT Firewall becomes the NAT solution for your VPC, making the use or presence of other NAT gateways redundant.

It is architected along the [_Internal TCP/UDP load balancers as next hops_](https://cloud.google.com/load-balancing/docs/internal/ilb-next-hop-overview) guide from Google Cloud. As the guide suggests, these NAT instances are simply a [_bump-in-the-wire_](https://en.wikipedia.org/wiki/Bump-in-the-wire) with:

- no explicit client configuration
- load balancing
- proactive health-checks

### MARKETPLACE

[![Launch Free Trial on Google Cloud](img/GC-Partner-no_outline-H_small.png)](https://console.cloud.google.com/marketplace/details/chasersystems-public/discriminat)

The DiscrimiNAT Firewall is [listed on the Google Cloud Marketplace](https://console.cloud.google.com/marketplace/details/chasersystems-public/discriminat). The architecture discussed above is available as a Deployment Manager template to launch on subsequent steps from marketplace subscription.