Advantech EKI-9512-C0IDW10E, Руководство пользователя

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EKI-9500 Series User Manual 42
To access this page, click System > Advanced Configuration > DHCP Server >
Conflicts .
Figure 4.21 System > Advanced Configuration > DHCP Server > Conflicts
The following table describes the items in the previous figure.
4.3.2.2 DNS
You can use these pages to configure information about DNS servers the network
uses and how the switch/ router operates as a DNS client.
Global
Use the DNS Global Configuration page to configure global DNS settings and to view
DNS client status information.
To access this page, click System > Advanced Configuration > DNS > Configura-
tion .
Figure 4.22 System > Advanced Configuration > DNS > Configuration
Item Description
IP Address The IP address that has been detected as a duplicate.
Detection Method The method used to detect the conflict, which is one of the following:

Gratuitous ARP: The DHCP client detected the conflict by
broadcasting an ARP request to the address specified in the
DHCP offer message sent by the server. If the client receives a
reply to the ARP request, it declines the offer and reports the
conflict.

Ping: The server detected the conflict by sending an ICMP echo
message (ping) to the IP address before offering it to the DHCP
client. If the server receives a response to the ping, the address
is considered to be in conflict and is removed from the pool.

Host Declined: The server received a DHCPDECLINE message
from the host. A DHCPDECLINE message indicates that the
host has discovered that the IP address is already in use on the
network.
Detection Time The time when the conflict was detected in days, hours, minutes and
seconds since the system was last reset (i.e., system up time).
Refresh Click Refresh to update the screen.
Clear Entries Click Clear Entries to clear all of the address conflict entries.