User’s Guide
Version 1.0
Clients using an IP address from the management subnet can browse the Internet without
authorization, and no accounting will be done. Thus, it is strongly recommended to allow traffic only
from the administrative remote network (no 0.0.0.0/0.0.0.0 in remote specification).
Example:
Interface configuration for ixp0:
type: LAN
IP address:
192.168.3.1
netmask:
255.255.255.0
gateway:
ixp1
Management subnet on ixp0:
IP address:
10.0.0.1
netmask:
255.255.255.0
remote network:
10.10.0.1
remote netmask:
255.255.255.0
With these settings applied, the administrator will be able to connect to devices behind the BW1330
on interface ixp0, if these devices use address in the range: 10.0.0.2 ... 10.0.0.254. The administrator
is connecting via the Internet (from ixp1 interface).
The administrator’s computer can have an address from 10.10.0.1 to 10.10.0.254.
Please note that devices which are using 10.0.0.2. – 10.0.0.254 addresses have
access to the administrative network too!
In this example, the administrative network uses the reserved IP address (10.x.x.x) – they are not
routed in the Internet, so the administrator should setup routers in a path between the BW1330 and
the administrator's computer to recognize 10.x.x.x addresses and route them correctly. This is not
comfortable and sometimes it is impossible. There is a solution – the administrator can use GRE
tunnel(see:
) to setup a tunnel between the administrator's computer
and the BW1330. The only addresses visible on the Internet will be the BW1330 WAN IP address and
the administrator's computer (or router) IP address.
Network Interface | DNS
DNS
(Domain Name Service) service allows AC subscribers to enter URLs instead of IP addresses
into their browser to reach the desired web site.
Figure 98 –- DNS Settings Configuration
You can enter the
primary
and
secondary
DNS
servers settings under the
network interface | DNS
menu.
Figure 99–Edit DNS Redirection Settings
The
DNS
server
or
DNS
address
can be obtained dynamically if DHCP, PPPoE (for DSL) service is
enabled. To add
DNS
server manually click the
edit
button in the
action
column and type in the
DNS
server’s IP address:
IP address
– enter the primary or secondary DNS server’s IP address [in digits and dots notation].
Save
– click to save the new DNS server’s settings.
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