F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

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Table 28 Configuration items
Item Descri
p
tion
Server Group ID
Enter the ID of a DHCP server group.
You can create up to 20 DHCP server groups.
IP Address
Enter the IP address of a server in the DHCP server group.
The server IP address cannot be on the same subnet as the IP address of the DHCP
relay agent. Otherwise, the client cannot obtain an IP address.
515BEnabling the DHCP relay agent on an interface
1. From the navigation tree, select Network > DHCP > DHCP Relay.
The DHCP relay agent configuration page appears, as shown in
2405HFigure 113.
In the Interface Config field, the DHCP relay agent state of interfaces is displayed.
2. Click the icon next to a specific interface.
The page for configuring a DHCP relay agent interface appears.
Figure 115 Configuring a DHCP relay agent interface
3. Configure a DHCP relay agent interface as described in 2406HTable 29.
4. Click Apply.
Table 29 Configuration items
Item Descri
p
tion
Interface Name This field displays the name of a specific interface.
DHCP Relay
Enable or disable the DHCP relay agent on the interface.
If the DHCP relay agent is disabled, the DHCP server is enabled on the interface.
Address Match
Check
Enable or disable IP address check.
With this function enabled, the DHCP relay agent dynamically records clients' IP-to-MAC
bindings after they obtain IP addresses from the DHCP server. You can also configure static
IP-to-MAC bindings on the DHCP relay agent so that users can access external networks by
using fixed IP addresses. Upon receiving a packet from a host, the DHCP relay agent
checks the source IP and MAC addresses in the packet against the recorded dynamic and
static bindings. If no match is found, the DHCP relay agent does not learn the ARP entry of
the host, and does not forward any reply to the host. Therefore, the host cannot access
external networks through the DHCP relay agent.
Server Group ID
Correlate the interface with a DHCP server group.
A DHCP server group can be correlated with multiple interfaces.