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Page 36 / 98 Scroll up to view Page 31 - 35
36
HITRON CVE-30360 USER’S GUIDE
CABLE
2.5
THE PASSWORD SCREEN
Use this screen to change the password with which you log in to the CVE-30360.
NOTE:
If you forget your password, you will need to reset the CVE-30360 to its
factory defaults.
Click
Cable
>
Password
. The following screen displays.
FIGURE 9:
The Cable > Password Screen
The following table describes the labels in this screen.
Gateway IP
This displays the IP address of the device to which the
CVE-30360 is connected over the
CATV
interface.
DHCP Lease Time
This displays the time that elapses before your device’s
IP address lease expires, and a new IP address is
assigned to it by the DHCP server.
System Time
This displays the current date and time.
TABLE 9:
The Cable > Password Screen
Enter Current Password
Enter the password with which you currently log into the
CVE-30360
Enter New Password
Enter and re-enter the password you want to use to log
into the CVE-30360.
Re-Enter New Password
Password Idle Time
Enter the number of minutes of inactivity after which you
should be automatically logged out of the CVE-30360.
Once this period elapses, you will need to log in again.
Apply
Click this to save your changes to the fields in this
screen.
TABLE 8:
The Cable > Status Screen (continued)
Page 37 / 98
37
HITRON CVE-30360 USER’S GUIDE
CABLE
Cancel
Click this to return the fields in this screen to their last-
saved values without saving your changes.
Help
Click this to see information about the fields in this
screen.
TABLE 9:
The Cable > Password Screen (continued)
Page 38 / 98
38
HITRON CVE-30360 USER’S GUIDE
CABLE
Page 39 / 98
39
LAN
3
LAN
This chapter describes the screens that display when you click
LAN
in the toolbar.
3.1
LAN OVERVIEW
This section describes some of the concepts related to the
LAN
screens.
3.1.1
LOCAL AREA NETWORKS
A Local Area Network (LAN) is a network of computers and other devices that usually
occupies a small physical area (a single building, for example). Your CVE-30360’s
LAN consists of all the computers and other networking devices connected to the
LAN 1
~
4
ports. This is your private network (in routing mode - see
Routing Mode
on
page
28
).
The LAN is a separate network from the Wide Area Network (WAN). In the case of
the CVE-30360, the WAN refers to all computers and other devices available on the
cable (
CATV
) connection.
By default, computers on the WAN cannot identify individual computers on the LAN;
they can see only the CVE-30360. The CVE-30360 handles routing to and from
individual computers on the LAN.
3.1.2
LAN IP ADDRESSES AND SUBNETS
IP addresses on the LAN are controlled either by the CVE-30360’s built-in DHCP
server (see
DHCP
on page
27
), or by you (when you manually assign IP addresses
to your computers).
For more information about IP addresses and subnets in general, see
IP Addresses
and Subnets
on page
25
.
Page 40 / 98
40
HITRON CVE-30360 USER’S GUIDE
LAN
3.1.3
DOMAIN SUFFIX
A domain is a location on a network, for instance
example.com
. On the Internet,
domain names are mapped to the IP addresses to which they should refer by the
Domain Name System. This allows you to enter “www.example.com” into your
browser and reach the correct place on the Internet even if the IP address of the
website’s server has changed.
Similarly, the CVE-30360 allows you to define a
Domain Suffix
to the LAN. When
you enter the domain suffix into your browser, you can reach the CVE-30360 no
matter what IP address it has on the LAN.
3.1.4
DEBUGGING (PING AND TRACEROUTE)
The CVE-30360 provides a couple of tools to allow you to perform network
diagnostics on the LAN:
Ping: this tool allows you to enter an IP address and see if a computer (or other
network device) responds with that address on the network. The name comes
from the pulse that submarine SONAR emits when scanning for underwater
objects, since the process is rather similar. You can use this tool to see if an IP
address is in use, or to discover if a device (whose IP address you know) is
working properly.
Traceroute: this tool allows you to see the route taken by data packets to get
from the CVE-30360 to the destination you specify. You can use this tool to
solve routing problems, or identify firewalls that may be blocking your access to
a computer or service.
3.2
THE LAN IP SCREEN
Use this screen to:
Configure the CVE-30360’s LAN IP address, subnet mask and domain suffix
Configure the CVE-30360’s internal DHCP server
See information about the network devices connected to the CVE-30360 on the
LAN.
Click
LAN
>
LAN IP
. The following screen displays.

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