3Com 7757 Configuration Manual page 604

604 C 57: DHCP S
HAPTER
Configuring NetBIOS
Services for DHCP
Clients
C
ERVER ONFIGURATION
Table 475 Configure DNS services for the DHCP server
Operation
Configure DNS Configure the
server addresses current interface
for DHCP clients
Configure multiple
interfaces in system
view
For Microsoft Windows-based DHCP clients that communicate through NetBIOS
protocol, the host name-to-IP address translation is carried out by WINS servers. So
you need to perform WINS-related configuration for most Windows-based hosts.
Currently, you can configure up to eight WINS addresses for a DHCP address pool.
Host name-to-IP address mappings are needed for DHCP clients communicating
through the NetBIOS protocol. According to the way to establish the mapping,
NetBIOS nodes fall into the following four categories:
B-node. Nodes of this type establish their mappings through broadcasting (The
■
character b stands for the word broadcast). The source node obtains the IP
address of the destination node by sending the broadcast packet containing
the host name of the destination node. After receiving the broadcast packet,
the destination node returns its IP address to the source node.
P-node. Nodes of this type establish their mappings by communicating with
■
WINS servers (The character p stands for peer-to-peer). The source node sends
the unicast packet to the WINS server. After receiving the unicast packet, the
WINS server returns the IP address corresponding to the destination node name
to the source node.
M-node. Nodes of this type are p-nodes mixed with broadcasting features (The
■
character m stands for the word mixed), that is to say, this type of nodes obtain
mappings by sending broadcast packets first. If they fail to obtain mappings,
they send unicast packets to the WINS server to obtain mappings.
H-node. Nodes of this type are b-nodes mixed with peer-to-peer features (The
■
character h stands for the word hybrid), that is to say, this type of nodes obtain
mappings by sending unicast packets to WINS servers. If they fail to obtain
mappings, they send broadcast packets to obtain mappings.
Table 476 Configure NetBIOS services for the DHCP server
Operation
Enter system view
Command
interface interface-type
interface-number
dhcp server dns-list
ip-address&<1-8>
quit
dhcp server dns-list
ip-address&<1-8> { inter
face interface-type
interface-number [ to
interface-type
interface-number ] | all }
Command
system-view
Description
Required
By default, no DNS server
address is configured.
Description
-