Specifying A Gateway Address For Dhcp Clients; Enabling Client Offline Detection On The Dhcp Relay Agent - HPE FlexNetwork MSR Series Comware 7 Layer 3 - Ip Services Configuration Manuals

Step
2. Create a DHCP relay
address pool and enter its
view.
3. Specify gateway addresses
for the clients matching the
relay address pool.
4. Specify DHCP servers for
the relay address pool.

Specifying a gateway address for DHCP clients

By default, the DHCP relay agent fills the giaddr field of DHCP DISCOVER and REQUEST packets
with the primary IP address of the relay interface. You can specify a gateway address on the relay
agent for DHCP clients. The DHCP relay agent uses the specified gateway address to fill the giaddr
field of DHCP DISCOVER and REQUEST packets.
To specify a gateway address for DHCP clients:
Step
1. Enter system view.
2. Enter interface view.
3. Specify a gateway address for
DHCP clients.
Enabling client offline detection on the DHCP
relay agent
When an ARP entry ages out, the client offline detection feature deletes the relay entry for the IP
address and sends a RELEASE message to the DHCP server. The feature does not function if an
ARP entry is manually deleted.
To enable client offline detection on the DHCP relay agent:
Step
1. Enter system view.
2. Enable the relay agent to
Command
dhcp server ip-pool pool-name
gateway-list ip-address&<1-64>
[ export-route ]
remote-server
ip-address&<1-8>
Command
system-view
interface interface-type
interface-number
dhcp relay gateway ip-address
Command
system-view
dhcp relay
80
Remarks
By default, no DHCP relay address
pool exists.
This command is the same for
creating DHCP address pools on a
DHCP server. However, the relay
address pool names are not
necessarily the same as the server
address pool names.
By default, no gateway address is
specified.
By default, no DHCP server is
specified for the relay address pool.
You can specify a maximum of eight
DHCP servers for one relay address
pool for high availability. The relay
agent forwards DHCP DISCOVER
and REQUEST packets to all DHCP
servers in the relay address pool.
Remarks
N/A
N/A
By default, the DHCP relay
agent uses the primary IP
address of the relay interface as
the clients' gateway address.
Remarks
N/A
By default, the relay agent does not