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Chapter 4 Device Information
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46
4.7
ADSL BER Test
Click
Device Info > Statistics > ADSL > ADSL BER Test
to open the following
screen. Perform an ADSL Bit Error Rate Test to measure the quality of the ADSL
connection.
Figure 16
Device Info > Statistics > ADSL > ADSL BER Test
Select for how many seconds to perform the test and click
Start
.
Figure 17
Device Info > Statistics > ADSL > ADSL BER Test: Results
Bit Errors
The total numbers of downstream and upstream bit errors.
Total ES
The number of Errored SecondS that have occurred within the period.
Total SES
The number of Severely Errored Seconds that have occurred within the
period.
Total UAS
The number of UnAvailable Seconds that have occurred within the period.
ADSL BER
Test
Click this button to perform an ADSL Bit Error Rate Test to measure the
quality of the ADSL connection.
Reset
Statisitcs
Click this button to have the ZyXEL Device clear the current ADSL
statistics and start collecting them again.
Table 8
Device Info > Statistics > ADSL (continued)
LABEL
DESCRIPTION
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47
The ADSL BER test results show how many bits were sent, how many of the
transferred bits were errored, and the error ratio.
Click
Close
when you are done.
4.8
Route Info
Click
Device Info > Route
to open the following screen. This screen displays
information about the ZyXEL Device’s routes for sending traffic.
Figure 18
Device Info > Route
The following table describes the labels in this screen.
Table 9
Device Info > Route
LABEL
DESCRIPTION
Destination
The route applies to traffic going to this network address.
Gateway
This is the router the ZyXEL Device sends traffic to in order to forward the
traffic to the destination listed in the route.
Subnet Mask
This is the network number of the gateway to which this route forwards
traffic.
Flag
This displays more information about the route.
U - up
! -reject
G - gateway
H - host
R - reinstate
D - dynamic (redirect)
M - modified (redirect)
Metric
This field sets this route's priority among the routes the ZyXEL Device
uses.
The metric represents the "cost of transmission". A router determines the
best route for transmission by choosing a path with the lowest "cost". RIP
routing uses hop count as the measurement of cost, with a minimum of "1"
for directly connected networks. The number must be between "1" and
"15"; a number greater than "15" means the link is down. The smaller the
number, the lower the "cost".
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4.9
ARP Info
Click
Device Info > ARP
to open the following screen. This screen displays
information about the IP addresses the ZyXEL Device has resolved into MAC
addresses.
Figure 19
Device Info > ARP
The following table describes the labels in this screen.
4.9.1
DHCP Table
DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows
individual clients to obtain TCP/IP configuration at start-up from a server. You can
configure the ZyXEL Device as a DHCP server or disable it. When configured as a
server, the ZyXEL Device provides the TCP/IP configuration for the clients. If DHCP
Service
This displays what type of traffic this route is for. The field is blank when
the route is for all types of service.
Interface
This route has the ZyXEL Device send traffic through this interface.
Table 9
Device Info > Route (continued)
LABEL
DESCRIPTION
Table 10
Device Info > ARP
LABEL
DESCRIPTION
IP Address
This is the IP address that the ZyXEL Device resolved into a MAC address.
Flags
This field shows more information about the IP address entry.
Complete
means it is a valid entry.
Incomplete
means it is an invalid entry.
Permanent
means the entry will not expire.
Public
means it is an entry that the ZyXEL Device acquired by listening.
HW Address
This is the MAC (Media Access Control) address to which the ZyXEL Device
resolved the IP address.
Device
This identifies the interface to which the device with the listed IP address is
connected.
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49
service is disabled, there must be another DHCP server, or else the computer must
be manually configured.
Click
Device Info > DHCP
to display the following screen. This is only available
when the ZyXEL Device’s DHCP server function is enabled. The DHCP table shows
current DHCP client information (including
IP Address
,
Host
Name
and
MAC
Address
) of all network clients using the ZyXEL Device’s DHCP server.
Figure 20
Device Info > DHCP
The following table describes the labels in this screen.
Table 11
Device Info > DHCP
LABEL
DESCRIPTION
Host Name
This field displays the computer host name.
MAC Address
The MAC (Media Access Control) or Ethernet address on a LAN (Local Area
Network) is unique to your computer (six pairs of hexadecimal notation).
A network interface card such as an Ethernet adapter has a hardwired
address that is assigned at the factory. This address follows an industry
standard that ensures no other adapter has a similar address.
IP Address
This field displays the IP address assigned to the DHCP client.
Expires In
This field displays for how much longer the host has the lease for the
assigned IP address.
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