xStack® DGS-3120 Series Managed Switch Web UI Reference Guide
253
Chapter 9
Network Application
DHCP
SNTP
Flash File System Settings
DHCP
DHCP Relay
DHCP Relay Global Settings
Users can enable and configure DHCP Relay Global Settings. The relay hops count limit allows the maximum
number of hops (routers) that the DHCP messages can be relayed through to be set. If a packet’s hop count is
more than the hop count limit, the packet is dropped. The range is between
1
and
16
hops, with a default value of
4
.
The relay time threshold sets the minimum time (in seconds) that the Switch will wait before forwarding a
BOOTREQUEST packet. If the value in the seconds’ field of the packet is less than the relay time threshold, the
packet will be dropped. The range is between
0
and
65,535
seconds, with a default value of
0
seconds.
To view this window, click
Network Application > DHCP > DHCP Relay > DHCP Relay Global Settings
as
shown below:
Figure 9–1 DHCP Relay Global Settings window
The fields that can be configured are described below:
Parameter
Description
DHCP Relay State
This field can be toggled between
Enabled
and
Disabled
using the pull-down menu.
It is used to enable or disable the DHCP Relay service on the Switch. The default is
Disabled.
DHCP Relay Hops
Count Limit (1-16)
This field allows an entry between
1
and
16
to define the maximum number of
router hops DHCP messages can be forwarded. The default hop count is
4
.
DHCP Relay Time
Threshold (0-65535)
Allows an entry between
0
and
65535
seconds, and defines the maximum time limit
for routing a DHCP packet. If a value of
0
is entered, the Switch will not process the
value in the seconds’ field of the DHCP packet. If a non-zero value is entered, the
Switch will use that value, along with the hop count to determine whether to forward
a given DHCP packet.
DHCP Relay Option 82
This field can be toggled between
Enabled
and
Disabled
using the pull-down menu.
Summary of Contents for DGS-3120-24PC-EI
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