Enterasys Networks X-Pedition XSR CLI - Manual (Page 620)

DHCP Commands
15-110 Configuring DHCP
The following example configures DHCP option 36, which specifies Ethernet encapsulation
Version 2 (RFC‐894) or IEEE 802.3 for DHCP clients. Version 2 encapsulation is set in this example:
XSR(config-dhcp-pool)#option 36 hex 00
The following example configures DHCP option 21, which sets a policy filter for non‐local source
routing. The filters consist of a list of IP addresses and masks that specify destination/mask pairs
with which to filter inbound source routes. Any source‐routed datagram whose next‐hop address
does not match one of the filters is discarded by the client.
XSR(config-dhcp-pool)#option 21 ip 90.1.1.78 255.255.0.0 134.141.90.1
255.255.255.0
The following example configures DHCP option 22, which specifies the maximum size datagram
a client will reassemble. The value is 1052 bytes:
XSR(config-dhcp-pool)#option 22 hex 41
The following example sets DHCP option 28, specifying the broadcast address in use on the
clientʹs subnet. The value is: 255.255.255.255.
XSR(config-dhcp-pool)#option 28 ip 255.255.255.255
The following example configures DHCP option 35, which specifies the timeout in seconds for
ARP cache entries. The value is 604,800 (1 week):
XSR(config-dhcp-pool)#option 35 hex 93A8
The following example sets DHCP option 14, specifying the pathname where a DHCP client’s core
image will be placed if the client crashes:
XSR(config-dhcp-pool)#option 14 ascii c:/dump/path
The following example configures DHCP option 31, which specifies that the DHCP client should
not perform subnet mask discovery:
XSR(config-dhcp-pool)#option 29 hex 00
The following example configures DHCP option 19, which specifies that the DHCP client should
configure its IP layer for packet forwarding:
XSR(config-dhcp-pool)#option 19 hex 01
The following example configures DHCP option 31, which specifies that the DHCP client should
perform Router Discovery:
XSR(config-dhcp-pool)#option 31 hex 01
The following example configures DHCP option 47, which specifies a NetBIOS over TCP/IP scope
parameter for a DHCP client:
XSR(config-dhcp-pool)#option 47 ascii scope
The following example configures DHCP option 40, which specifies the DHCP client’s NIS
domain:
XSR(config-dhcp-pool)#option 40 ascii NISserver
The following example configures DHCP option 18, which specifies the pathname of a file
retrievable through TFTP:
XSR(config-dhcp-pool)#option 18 ascii /extension/path
The following example configures DHCP option 18, which specifies a list of prioritized static
routes (in descending order) the DHCP client should install in its routing cache:
XSR(config-dhcp-pool)#option 33 ip 90.1.1.90 123.124.23.26 90.1.1.90 123.24.56.78