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DHCP Commands
15-106 Configuring DHCP
44*
NetBIOS
over TCP/
IP Name
Server
WINS/
NetBIOS, MS
DHCP Client/
IP address list
- RFC-1001/1002 NBNS name servers listed by preference.
Length: 4-octet minimum; multiples of 4
CLI command: netbios-name-server
45 NetBIOS
over TCP/
IP
Datagram
Distribution
Server
WINS/
NetBIOS
/IP address
list
- NBDD name servers(RFC-1001/1002) listed by preference.
Length: 4-octet minimum; multiples of 4
46
*
NetBIOS
over TCP/
IP Node
Type
WINS/
NetBIOS, MS
DHCP Client/
1, 2, 4, or 8
(hex)
- The value is a single octet that identifies client type:
1: B-node; 2: P-node; 4: M-node; 8: H-node
Length: 1 octet
CLI command: netbios-node-type
47 NetBIOS
over TCP/
IP Scope
WINS/
NetBIOS, MS
DHCP Client/
ASCII string
- NetBIOS over TCP/IP scope value for a client (RFC-1001/1002).
Length: 4-octet minimum
48 X Windows
Font Server
Servers/
IP address
list
- X Window System Font servers available to a client. List in order of
preference.
Length: 4-octet minimum; multiples of 4
49 X Windows
Display
Manager
Servers/
IP address
list
- IP addresses of systems running X Window System Display Manager and are
available to a client. List addresses in order of preference.
Length: 4-octet minimum; multiples of 4
50 Requested
IP Address
IP address - Used in a client request (DHCPDISCOVER or DHCPREQUEST) to allow a
client to request a particular IP address be assigned.
Length: 4 octets
51 IP Address
Lease Time
Lease
Information,
MS DHCP
Client/32-bit
hex integer
- Used in a client request (DHCPDISCOVER or DHCPREQUEST) to allow a
client to request a lease time for the IP address. In a server reply
(DHCPOFFER), a DHCP server uses this option to specify the lease time it is
willing to offer.
Length: 4 octets
Value: seconds
52 Option
Overload
- - Indicates that the DHCP sname or file fields are being overloaded by using
them to carry DHCP options. A DHCP server inserts this option if the returned
values will exceed the usual space allotted for options. If this option is present,
the client interprets the specified additional fields after it concludes
interpretation of the standard option fields.
1 = The file field is used to hold options.
2 = The sname field is used to hold options.
3 = Both fields are used to hold options.
Length: 1 octet
Table 15-1 XSR-Supported DHCP Options (continued)
#
Protocol
Name
Category/
Type
Default Description