Telindus 1031, User And Reference Manual

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Telindus 1031 Router Chapter 10
Reference manual Configuration attributes
213
DHCP server reaction on a BootP request
The DHCP server reacts on a BootP request as follows: the source MAC address of the incoming BootP
request packet is compared with the MAC addresses that have been entered in the
dhcpStatic
table. Then,
there are two possibilities:
• If the source MAC address corresponds with a MAC address in the dhcpStatic table, then the DHCP
server replies with a BootP reply packet. In this reply, the IP address that is linked with the MAC
address in question (as defined in the
dhcpStatic table) is returned.
• If the source MAC address does not correspond with a MAC address in the
dhcpStatic
table, then the
DHCP server returns no response on that frame.
Releasing IP addresses - DHCP versus BootP
On DHCP level, it is regularly checked whether the device that has an IP address in lease is still con-
nected to the network. If it is not, the IP address is returned to the pool of free IP addresses.
On BootP level, however, such a check (or refresh ) does not exist. What is more, a statistic IP address
lease is for an infinite time. Consequently, if the device that requested the IP address is no longer con-
nected to the network, this is not detected by the server. In that case, the statistical information will still
indicate that the IP address is leased although it is not.
bootFile
Use this element to set the location of the boot file.
hostName Use this element to set the name of the client.
Because the DHCP server can not give the same
name to all clients of this IP address range, a number is added to the host name
from the second IP address onwards. The number goes up to 99.
Example
Suppose the host name is
Telindus
. In that case the name for the start IP address
is
Telindus
, for the second IP address
Telindus1
, and so on.
domainName
Use this element to set the name the client should use
when resolving hostnames via the Domain Name
System (DNS).
netbiosNameServer
Use this element to set the IP address of the NetBios
server.
netbiosNodeType Use this element to configure the client as described
in RFC1001 / RFC1002.
The
netbiosNodeType
element has the following values:
no-node
,
B-node
,
P-node
,
M-
node
,
H-node
.
Element Description
Default:<empty>
Range: max. 128 characters
Default:<empty>
Range: max. 20 characters
Default:<empty>
Range: max. 20 characters
Default:0.0.0.0
Range: up to 255.255.255.255
Default:<opt>
Range: enumerated, see below