> ## Documentation Index
> Fetch the complete documentation index at: https://docs.asteroid.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Sticky IP

> Send agent traffic from a small, fixed set of Asteroid IPs, for sites that allowlist addresses.

A **Sticky IP** gateway sends agent traffic from a small, fixed set of Asteroid IP addresses. Use it when a site only accepts logins from addresses it knows.

There is no VPN and nothing to install. Traffic still goes over the public internet.

## Prerequisites

Before you start, ensure that:

* **Your plan includes Sticky IP.** Scale and above include it. On another plan, the option shows a plan badge; click it to upgrade, or contact the Asteroid team.

## Set it up

1. In **Environments → Gateways**, click **New gateway** and pick **Sticky IP**.
2. Name it and click **Create gateway**.
3. Ask Asteroid support for the addresses, and add them to the site's allowlist.
4. [Pick the gateway on an environment](/networking/overview#use-a-gateway).

## What it can reach

Public internet only. A Sticky IP gateway refuses private ranges (`10.0.0.0/8`, `172.16.0.0/12`, `192.168.0.0/16`, `100.64.0.0/10`), link-local and loopback addresses. To reach a private app, use [Tailscale](/networking/tailscale) or [Asteroid Tunnel](/networking/asteroid-tunnel).


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