ZyXEL P-792H v2 User Guide - Page 183
Telecommuters Using Unique VPN Rules Example
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Chapter 12 VPN Table 55 Telecommuters Sharing One VPN Rule Example FIELDS TELECOMMUTERS HEADQUARTERS My IP Address: 0.0.0.0 (dynamic IP address assigned by the ISP) Public static IP address Secure Gateway Public static IP address IP Address: 0.0.0.0 With this IP address only the telecommuter can initiate the IPSec tunnel. Local IP Address: Telecommuter A: 192.168.2.12 Telecommuter B: 192.168.3.2 Telecommuter C: 192.168.4.15 192.168.1.10 Remote IP Address: 192.168.1.10 0.0.0.0 (N/A) 12.9.12.2 Telecommuters Using Unique VPN Rules Example In this example the telecommuters (A, B and C in the figure) use IPSec routers with domain names that are mapped to their dynamic WAN IP addresses (use Dynamic DNS to do this). With aggressive negotiation mode (see Section 12.9.6 on page 178), the P-792H v2 can use the ID types and contents to distinguish between VPN rules. Telecommuters can each use a separate VPN rule to simultaneously access a P792H v2 at headquarters. They can use different IPSec parameters. The local IP addresses (or ranges of addresses) of the rules configured on the P-792H v2 at headquarters can overlap. The local IP addresses of the rules configured on the telecommuters' IPSec routers should not overlap. See the following table and figure for an example where three telecommuters each use a different VPN rule for a VPN connection with a P-792H v2 located at headquarters. The P-792H v2 at headquarters (HQ in the figure) identifies each incoming SA by its ID type and content and uses the appropriate VPN rule to establish the VPN connection. P-792H v2 User's Guide 183