Global Technology Associates SOFTWARE FIREWALL GBWA200501-01 Manual De Usuario

GB-Ware Firewall Product Guide

36

ment Numbers Authority (IANA) has specified network addresses in 
RFC 1918 that are designated exclusively for internal networks.

1

A

10.0.0.0 - 
10.255.255.255

16

B

172.16.0.0 - 
172.31.255.255

256

C

192.168.0.0 - 
192.168.255.255

Because GTA firewalls perform NAT, the IP address and any network 
addresses behind the firewall (i.e., attached to, or on the protected 
network or PSN) can be unregistered. IANA compliance is largely 
a matter of convenience in NATted networks.

9. Gateway/Default Route on External Interface (No DHCP or PPP/

PPPoE/PPTP) 
If your external network interface is not using DHCP (which 
automatically fetches gateway information), enter a default route 
for outbound traffic. Once the IP address, net mask, and device 
assignment have been made, the wizard will prompt for the default 
route. The wizard attempts to determine the network segment of the 
IP address automatically.

10. Password 

Assign a password to your firewall (required). Initially, the user ID 
and password is set to “gnatbox.” The user ID can be changed 
later in Authorization

 then 

Admin Accounts. 

GTA recommends changing the default user ID and password to 
prevent  unauthorized  access.  See  the  GNAT  Box  System  Software 
User's Guide for instructions.

10. Saving Your Settings 

The summary screen displays all your configuration settings. If you 
need to make changes, use the 

button to move back to 

the desired dialog and make corrections. Once you are satisfied 
with your settings, select 

and allow the firewall to boot up. 

Initial configuration is now complete.