Configuring The Application Layer Gateway (Alg) - Motorola WS2000 System Reference Manual

4-8 WS2000 Wireless Switch System Reference Guide
Configuring WAN Hosts
NOTE: These instructions are only valid for the Windows ™ operating system.
• The WAN hosts should map the HOSTNAME of the LAN side PC against the WAN IP address of the
WS2000 in their
• WAN hosts should have their NetBIOS over TCP/IP enabled.
To enable NetBIOS over TCP/IP on the WAN Hosts, do the following
1. Open the Local Area Connection Properties dialog for the WAN Host.
2. Click Internet Protocol (TCP/IP)
3. Click Properties
4. Click the Advanced
dialog opens.
5. Select the WINS tab to enable it.
6. In the NetBIOS setting group, select the
TCP/IP radio.
7. Click OK in each dialog box to close it.
The LAN side PC can be accessed using this format:
\\<host-name>\<shared-drive-name>
PCs on the LAN side need not be configured.
Configuring the WS2000
Navigate to the Firewall screen using
tree. Click Enable NetBIOS ALG

4.2.5 Configuring the Application Layer Gateway (ALG)

Use the Application Layer Gateway (ALG) to control how clients on the LAN side of the WS2000 accesses
the WAN.
1. Navigate to the ALG - Configuration screen using
Configuration in the left navigation menu tree. The ALG - Configuration screen displays.
2. Click the Add
in the Firewall Rules table.
3. Click the Src-IP
rule. Similarly configure the IP address for the
4. Click the Dst-Interface
LAN indicates that the destination interface is on the LAN part of the WS2000.
destination interface is located on the WAN side.
5. When WAN
the source IP address is translated to the IP defined as WAN1. To use any other defined IP, select the
c:\windows\system32\drivers\etc\lmhosts
to select it.
button. The Internet Protocol (TCP/IP) Properties dialog box opens
button located at the bottom right of the dialog box. The Advanced TCP/IP Settings
[Network Configuration]
check box to select it.
button to add a new row in the Firewall Rules table. Only twenty (20) rules can be created
column to display a dialog where you can enter the source IP address for the firewall
column to select the destination interface. The valid values are
is selected as the destination, interface, select the NAT action to be performed. By default,
Default radio. You can also select the
--> Firewall
[Network Configuration]
Dst-IP column too.
file.
Enable NetBIOS over
in the left navigation menu
--> Firewall --> ALG -
LAN and WAN.
WAN indicates that the