Dhcp Relay; Dhcp Relay Agent Information; Table 102 Ip Application > Dhcp Server Status Detail - ZyXEL Communications XGS-4528F User Manual

The following table describes the labels in this screen.
Table 102 IP Application > DHCP Server Status Detail
LABEL
Start IP Address
End IP Address
Subnet Mask
Default Gateway
Primary DNS
Server
Secondary DNS
Server
Address Leases
Index
IP Address
Timer
Hardware
Address
Hostname

32.4 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.

32.4.1 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.
XGS-4528F User's Guide
DESCRIPTION
This field displays the starting IP address of the IP address pool configured for this
DHCP server instance.
This field displays the last IP address of the IP address pool configured for this
DHCP server instance.
This field displays the subnet mask value sent to clients from this DHCP server
instance.
This field displays the default gateway value sent to clients from this DHCP server
instance.
This field displays the primary DNS server value sent to clients from this DHCP
server instance.
This field displays the secondary DNS server value sent to clients from this DHCP
server instance.
This section displays information about the IP addresses this DHCP server issued
to clients.
This field displays a sequential number for each DHCP request handled by the
Switch.
This is the IP address issued to a DHCP client.
This field displays the time remaining before the DHCP client has to renew its IP
address.
This field displays the MAC address of the DHCP client.
It may also display SELF OCCUPIED ADDRESS if the IP address cannot be used
for DHCP because it is already assigned to the Switch itself.
This field displays the system name of the client.
Chapter 32 DHCP
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