Enterasys Networks X-Pedition XSR CLI - Manual (Page 619)

DHCP Commands
XSR CLI Reference Guide 15-109
Examples
The following example configures DHCP option 33, which specifies static routes that the client
should install in its routing cache. If multiple routes to the same destination are set, they are listed
in descending order of priority. The routes consist of IP address pairs. The first address is the
destination address, the second address is the router for the destination.
XSR(config-dhcp-pool)#option 33 ip 90.1.1.90 123.124.23.26 90.1.1.90 123.24.56.78
The following example configures DHCP option 19, which specifies whether the client should
enable its IP layer for packet forwarding. Values of 0 and 1 disable and enable IP forwarding,
respectively. IP forwarding is enabled in the following example:
XSR(config-dhcp-pool)#option 19 hex 01
The following example configures DHCP option 1, which sets the client’s subnet mask as higher
priority when it and the router ID are specified in the DHCP REPLY:
XSR(config-dhcp-pool)#option 1 ip 255.255.255.0
The following example configures DHCP option 2, which locates a client as an offset 4650 seconds
from Coordinated Universal Time (UTC) or five hours west of the zero meridian (London):
XSR(config-dhcp-pool)#option 2 hex 4650
The following example configures DHCP option 72, which specifies World Wide Web (WWW)
servers for DHCP clients. Two WWW server addresses are configured in the following example:
XSR(config-dhcp-pool)#option 72 ip 168.24.3.252 168.24.3.253
The example below configures DHCP option 13, which specifies a client’s default boot image size:
XSR(config-dhcp-pool)#option 13 hex 8001
The following example configures DHCP option 41, which specifies Network Information Servers
(NIS) for DHCP clients. Two NIS server addresses are configured in the following example:
XSR(config-dhcp-pool)#option 41 ip 90.3.4.5 90.1.1.7 90.43.9.254
117 Name
Service
Search
Server/
Multiple
16-bit hex
integers - Sets site of Name Service servers to clients to be used for lookup. Each 16-bit
field specifies a Name Server to be used for lookup:
0 – client should refer to local naming information
6 – use DNS
41 – use NIS
44 – use NetBIOS over TCP/IP
65 – use NIS+
Defined by RFC-2937.
Length: Minimum 2 octets; multiple of 2 octets
118 Subnet
Selection
Interface/
IP address - Sets the subnet IP address (RFC-3011). Used by a client to inform/force
server to assign an IP address-specific subnet.
Length: 4 octets
150 TFTP
Server
Cisco Vendor
Extension/IP
address - Address of the TFTP server. This option supports the XSR’s Remote Auto
Install functionality.
Length: 4 octets
Table 15-1 XSR-Supported DHCP Options (continued)
#
Protocol
Name Category/
Type
Default Description
Note: DHCP options marked with an asterisk ( * ) can also be configured at the CLI.