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ZyWALL 2 Series User’s Guide
VPN Screens 14-35
Table 14-11 VPN Global Setting
LABEL DESCRIPTION
Windows Networking (NetBIOS over TCP/IP)
NetBIOS (Network Basic Input/Output System) are TCP or UDP broadcast packets that enable a computer to
connect to and communicate with a LAN. It may sometimes be necessary to allow NetBIOS packets to pass
through VPN tunnels in order to allow local computers to find computers on the remote network and vice
versa.
Allow Through IPSec Tunnel Select this check box to send NetBIOS packets through the VPN connection.
Apply
Click Apply to save your customized settings and exit this screen.
Reset
Click Reset to begin configuring this screen afresh.
14.18 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.
14.18.1 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.