Digi 90000566_H Startip=ip address, Endip=ip address, Leasetime=timeinfinite, Offerdelay=0-5000

set dhcpserver

enabled={onoff}

Enables the DHCP server feature on this Digi Connect product. Note that for the DHCP server to operate, the Digi Connect product must be configured to use a static IP address.

startip=ip address

The first IP address in the pool.

endip=ip address

The last address in the pool. The addresses in the range specified by “startip” and “endip” must be in the same subnet as the Digi Connect product.

leasetime={timeinfinite}

The length, in seconds, of the leases for the scope being served by this DHCP server. Specifying a time of 0 means that the default of 86400 seconds (24 hours) will be used. A DHCP client may request a lease duration other than this setting, and the DHCP server will grant that request, if possible.

offerdelay=0-5000

The interval of time, in milliseconds, to delay before offering a lease to a new client. The range for this delay is 0 to 5000 milliseconds, and the default delay is 500 milliseconds. Use of this delay permits the Digi Connect product to reside on a network with other DHCP servers, yet not offer leases to new clients unless the other DHCP servers do not make such an offer. This provides a measure of protection against inadvertently connecting a Digi Connect product to a network that is running its own DHCP server, and thereby offering leases to clients in a manner inconsistent with that network.

conflictdetect={onoff}

When a DHCP client requests a new IP address lease, before offering an IP address to that client, use "ping" to test whether that IP address is already in use by another host on the network but is unknown to the DHCP Server. If an IP address is determined to be in use, it is marked as "Unavailable" for a period of time, and it will not be offered to any client while in this state.

Enabling this test adds approximately one second of delay before the IP address is offered to the client, since the "ping" test must not receive a valid reply for that test to successfully determine that the IP address is not already in use.

This option is off (disabled) by default. This option does not apply to Static Lease Reservations, since the "ping" test is not used for them.

98 Chapter 2 Command Descriptions