Dell PowerConnect B-FCXs Configuration Manual page 890

26
Configuring IP parameters – Layer 3 Switches
Setting the wait time for ARP-ping response
At startup, the server reconciles the lease-binding database by sending an ARP-ping packet out to
every client. If there is no response to the ARP-ping packet within a set amount of time (set in
seconds), the server deletes the client from the lease-binding database. The minimum setting is 5
seconds and the maximum is 30 seconds.
Syntax: ip dhcp-server arp-ping-timeout <num>
•
NOTE
Do not alter the default value unless it is necessary. Increasing the value of this timer may increase
the time to get console access after a reboot.
Creating an address pool
The dhcp-server pool command puts you in pool configuration mode, and allows you to create an
address pool.
PowerConnect(config)# dhcp-server pool
PowerConnect(config-dhcp-name)# dhcp-server pool monterey
PowerConnect(config-dhcp-monterey)#
These commands create an address pool named monterey.
Syntax: dhcp-server pool <name>
Configuration notes
•
•
Enabling relay agent echo (Option 82)
The ip dhcp-server relay-agent-echo enable command activates DHCP Option 82, and enables the
DHCP server to echo relay agent information in all replies.
PowerConnect(config)# ip dhcp-server relay-agent-echo enable
Syntax: ip dhcp-server relay-agent-echo enable
Configuring the IP address of the DHCP server
The ip dhcp-server command specifies the IP address of the selected DHCP server, as shown in this
example:
PowerConnect(config)# ip dhcp-server cabo 102.1.1.144
Syntax: ip dhcp-server <server-identifier> <address>
•
848
<num> - The number of seconds to wait for a response to an ARP-ping packet.
If the DHCP server address is part of a configured DHCP address pool, you must exclude the
DHCP server address from the network pool. Refer to
address pool" on page 850.
While in DHCP server pool configuration mode, the system will place the DHCP server pool in
pending mode and the DHCP server will not use the address pool to distribute information to
clients. To activate the pool, use the deploy command. Refer to
configuration to the server"
<server-identifier> - The name of the DHCP server
on page 849.
PowerConnect B-Series FCX Configuration Guide
"Specify addresses to exclude from the
"Deploy an address pool
53-1002266-01