Part 6. VPN
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Part 6. VPN

Table of Contents

43. IPSec Basics
43.1. IPSec
43.2. Public-Key Cryptography
43.3. Certificates
43.4. IPSec connections
43.5. Algorithms
43.6. Limitations
43.7. Compatibility with Other IPSec Peers
44. Key Management
44.1. Own Keys
44.1.1. Certificate Authorities (CAs)
44.2. Foreign Keys
45. Connecting Individual PCs
45.1. Method
45.2. Preparing the configuration on the Intra2net system
45.2.1. Create certificate
45.2.2. Default settings for new connections
45.3. Automatic configuration for clients on the Intra2net system
45.4. Manual configuration on the Intra2net system
45.4.1. Prerequisites
45.4.2. Default Settings
45.4.3. Authentication
45.4.4. Configuring the Tunnel
45.4.5. Rights
45.4.6. Activation
46. VPN with the NCP Secure Entry Windows Client
46.1. Import
46.2. Establish connection
46.3. Connection protocols
47. VPN with the Shrew Soft VPN Client
47.1. Import
47.2. Establishing Connection
47.3. Connection Protocols
48. VPN with Mac OS X
48.1. Installation
48.2. Generating Certificates
48.3. Importing Certificates
48.4. Configuring Connections
48.5. Intra2net System
49. VPN with the NCP Secure Entry macOS Client
50. VPN with the Apple iOS devices
51. VPN with Android
51.1. Preparing the Device
51.2. Connection on the Intra2net System
51.3. Certificates
51.4. Connecting with Android
51.5. Simplify Connection Setup
52. VPN with the NCP Secure Android Client Premium
53. Connecting Complete Networks
53.1. Method
53.2. Configuration on the Intra2net System
53.2.1. Prerequisites
53.2.2. Default Settings
53.2.3. Authentication
53.2.4. Configuring the Tunnel
53.2.5. Rights
53.2.6. Activation
54. VPN with ZyXEL ZyWALL USG
54.1. Overview
54.2. Preparation
54.3. Certificate
54.4. Connection
54.4.1. IKE / Phase 1
54.4.2. IPSec / Phase 2
54.5. Intra2net System
54.6. Logs
55. VPN with Lancom Routers
55.1. Overview
55.2. Certificate for the Lancom device
55.3. Certificate for the Intra2net System
55.4. Connecting
55.5. Intra2net System
55.6. Deleting Certificates
56. VPN with Linux
56.1. Overview
56.2. Generating Certificates
56.3. Configuring Connections
56.4. Intra2net System
57. Solving IP Address Conflicts in VPNs Through NAT
57.1. The Problem
57.2. Configuration
57.3. Same IPs on LAN and Peer
57.3.1. Implementation
57.4. Multiple Peers with the Same IPs
57.4.1. Implementation
57.5. Local IPs Defined by Service Provider for Remote Maintenance
57.5.1. Implementation
58. Error Diagnosis
58.1. Reading Logs
58.2. The Protocol Format of the Intra2net System
58.3. Error in Phase 1
58.4. Error in Phase 2
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42.5. Example 5: Web Server in the DMZ Home 43. Chapter - IPSec Basics