---
title: "Filters and private-network tunnels"
version: "v0.27.0"
canonical: "https://docs.obot.ai/v0.27.0/mcp-gateway/filters-tunnels"
unreleased: false
---

# Filters and private-network tunnels

Use [Filter MCP traffic](https://docs.obot.ai/v0.27.0/functionality/filters.md) to inspect messages, or [Connect private-network servers](https://docs.obot.ai/v0.27.0/functionality/mcp-tunnels.md) to reach a remote service.

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## Filters

Continue to [Filters](https://docs.obot.ai/v0.27.0/functionality/filters.md#obot-doc-overview).

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### Filter implementations

Continue to [Filter implementations](https://docs.obot.ai/v0.27.0/functionality/filters.md#obot-doc-overview).

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### How Filters Work

Continue to [How Filters Work](https://docs.obot.ai/v0.27.0/functionality/filters.md#obot-doc-how-filters-work).

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### Gateway Configuration

Continue to [Gateway Configuration](https://docs.obot.ai/v0.27.0/functionality/filters.md#obot-doc-gateway-configuration).

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#### Selectors

Continue to [Selectors](https://docs.obot.ai/v0.27.0/functionality/filters.md#obot-doc-selectors).

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## Tunnels

Continue to [Tunnels](https://docs.obot.ai/v0.27.0/functionality/mcp-tunnels.md#obot-doc-overview).

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### Prerequisites

Continue to [Prerequisites](https://docs.obot.ai/v0.27.0/functionality/mcp-tunnels.md#obot-doc-prerequisites).

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### Create an MCP tunnel

Continue to [Create an MCP tunnel](https://docs.obot.ai/v0.27.0/functionality/mcp-tunnels.md#obot-doc-create-an-mcp-tunnel).

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### Configure allowed URLs

Continue to [Configure allowed URLs](https://docs.obot.ai/v0.27.0/functionality/mcp-tunnels.md#obot-doc-configure-allowed-urls).

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### Run the tunnel client

Continue to [Run the tunnel client](https://docs.obot.ai/v0.27.0/functionality/mcp-tunnels.md#obot-doc-connect-the-tunnel).

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### Configure a remote MCP catalog entry

Continue to [Configure a remote MCP catalog entry](https://docs.obot.ai/v0.27.0/functionality/mcp-tunnels.md#obot-doc-configure-a-remote-mcp-catalog-entry).