Enabling Ip Preserve - HP ProCurve 6120G/XG Configuration Manual

Enabling IP Preserve

To set up IP Preserve, enter the ip preserve statement at the end of a configu­
ration file. (Note that you do not execute IP Preserve by entering a command
from the CLI).
Figure 8-6. Example of Implementing IP Preserve in a Configuration File
For example, consider Figure 8-7:
TFTP
Server
config.
Switch 1
VLAN 1:
10.31.22.101
Switches 1 through 3 copy and implement the config.txt file
from the TFTP server (figure 8-8), but retain their current IP
Figure 8-7. Example of IP Preserve Operation with Multiple Series Switches
If you apply the following configuration file to figure 8-7, switches 1 - 3 will
retain their manually assigned IP addressing and switch 4 will be configured
to acquire its IP addressing from a DHCP server.
IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads
Entering "ip preserve" in the last line of a configuration
file implements IP Preserve when the file is
downloaded to the switch and the switch reboots.
Management
Station
Switch 2
Switch 3
VLAN 1:
VLAN 1:
10.31.22.102
10.31.22.103
Configuring IP Addressing
DHCP
Server
IP
Address
Switch 4
VLAN 1: DHCP
Switch 4 also copies and implements the
config.txt file from the TFTP server (figure 8-8),
but acquires new IP addressing from the DHCP
8-17