Telecommuter Vpn/Ipsec Examples; Telecommuters Sharing One Vpn Rule Example; Telecommuters Using Unique Vpn Rules Example; Figure 124 Telecommuters Sharing One Vpn Rule Example - ZyXEL Communications ZyWall 35 User Manual

ZyWALL 35 User's Guide

14.17 Telecommuter VPN/IPSec Examples

The following examples show how multiple telecommuters can make VPN connections to a
single ZyWALL at headquarters. The telecommuters use IPSec routers with dynamic WAN IP
addresses. The ZyWALL at headquarters has a static public IP address.

14.17.1 Telecommuters Sharing One VPN Rule Example

See the following figure and table for an example configuration that allows multiple
telecommuters (A, B and C in the figure) to use one VPN rule to simultaneously access a
ZyWALL at headquarters (HQ in the figure). The telecommuters do not have domain names
mapped to the WAN IP addresses of their IPSec routers. The telecommuters must all use the
same IPSec parameters but the local IP addresses (or ranges of addresses) should not overlap.

Figure 124 Telecommuters Sharing One VPN Rule Example

Table 82 Telecommuters Sharing One VPN Rule Example

FIELDS
My IP Address:
Secure Gateway IP
Address:
Local IP Address:
Remote IP Address:

14.17.2 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).
264
HEADQUARTERS
Public static IP address
0.0.0.0 With this IP address only
the telecommuter can initiate the
IPSec tunnel.
192.168.1.10
0.0.0.0 (N/A)
TELECOMMUTERS
0.0.0.0 (dynamic IP address
assigned by the ISP)
Public static IP address
Telecommuter A: 192.168.2.12
Telecommuter B: 192.168.3.2
Telecommuter C: 192.168.4.15
192.168.1.10
Chapter 14 VPN Screens