Telecommuter Vpn/Ipsec Examples; Telecommuters Sharing One Vpn Rule Example; Telecommuters Using Unique Vpn Rules Example; Figure 175 Telecommuters Sharing One Vpn Rule Example - ZyXEL Communications ZYWALL 2 PLUS User Manual

14.15 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.

14.15.1 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 175 Telecommuters Sharing One VPN Rule Example

Table 73 Telecommuters Sharing One VPN Rule Example

FIELDS
My ZyWALL:
Remote Gateway
Address:
Local Network - Single
IP Address:
Remote Network -
Single IP Address:

14.15.2 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).
ZyWALL 2 Plus User's Guide
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 IPSec VPN
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
Not Applicable
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