metrotek Bercut-ET, Руководство по эксплуатации

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5.12 Testing TCP/IP 61
name. DNS lookup feature
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allows to detect errors in NS-servers operation.
To perform the test it is necessary to execute the following actions:
1. Connect Bercut-ET to network using one port in accordance with con-
nection diagram (see fig. 5.54).
2. Switch to the DNS lookup menu (see fig. 5.63).
3. Enter domain name in the menu item Host .
4. Press button ( Start ). In the menu item IP IP address of the host
will be displayed.
If requested IP address cannot be retrieved, all bits in IP address will
be set to null.
Test result example is shown on the fig. 5.63.
Figure 5.63. DNS menu
• Host — name of host, IP address of which should be determined.
• IP — IP address of the host, named above, determined during the
test.
5.12.4 ARP monitor
ARP monitor utility allows to observe ARP replies that are transmitted
in the network and to get the IP and MAC addresses they contain. This data
form the table (see fig. 5.65).
To perform the test it is necessary to execute the following actions:
1. Connect Bercut-ET to network in accordance with connection diagram
(see fig. 5.54 and 5.55).
2. Switch to the ARP monitor menu (see fig. 5.64).
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The option is not included in the basic configuration; should be purchased additionally.
Bercut-ET. Operations manual