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Chapter 37 DHCP
MGS3700-12C User’s Guide
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37.2 DHCP Status
Click IP Application > DHCP in the navigation panel. The DHCP Status screen
displays.
Figure 177 IP Application > DHCP Status
The following table describes the labels in this screen.
37.3 DHCP Relay
Configure DHCP relay on the Switch if the DHCP clients and the DHCP server are
not in the same broadcast domain. During the initial IP address leasing, the
Switch helps to relay network information (such as the IP address and subnet
mask) between a DHCP client and a DHCP server. Once the DHCP client obtains an
IP address and can connect to the network, network information renewal is done
between the DHCP client and the DHCP server without the help of the Switch.
The Switch can be configured as a global DHCP relay. This means that the Switch
forwards all DHCP requests from all domains to the same DHCP server. You can
also configure the Switch to relay DHCP information based on the VLAN
membership of the DHCP clients.
37.3.1 DHCP Relay Agent Information
The Switch can add information about the source of client DHCP requests that it
relays to a DHCP server by adding Relay Agent Information. This helps provide
authentication about the source of the requests. The DHCP server can then
provide an IP address based on this information. Please refer to RFC 3046 for
more details.
Table 118 IP Application > DHCP
LABEL DESCRIPTION
Relay Mode This field displays:
• None - if the Switch is not configured as a DHCP relay agent.
• Global - if the Switch is configured as a DHCP relay agent only.
• VLAN - followed by a VLAN ID if it is configured as a relay agent for
specific VLAN(s).