7-14
Configuring IP Addressing
IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads
IP Preserve: Retaining VLAN-1 IP
Addressing Across Configuration File
Downloads
IP Preserve enables you to copy a configuration file to multiple Series 4100GL
switches while retaining the individual IP address and subnet mask on VLAN
1 in each switch, and the Gateway IP address assigned to the switch. This
enables you to distribute the same configuration file to multiple switches
without overwriting their individual IP addresses.
Operating Rules for IP Preserve
When
ip preserve
is entered as the last line in a configuration file stored on a
TFTP server:
■
If the switch’s current IP address for VLAN 1 was not configured by DHCP/
Bootp, IP Preserve retains the switch’s current IP address, subnet mask,
and IP gateway address when the switch downloads the file and reboots.
The switch adopts all other configuration parameters in the configuration
file into the startup-config file.
■
If the switch’s current IP addressing for VLAN 1 is from a DHCP server,
IP Preserve is suspended. In this case, whatever IP addressing the config-
uration file specifies is implemented when the switch downloads the file
and reboots. If the file includes DHCP/Bootp as the IP addressing source
for VLAN 1, the switch will configure itself accordingly and use DHCP/
Bootp. If instead, the file includes a dedicated IP address and subnet mask
for VLAN 1 and a specific gateway IP address, then the switch will
implement these settings in the startup-config file.
■
The
ip preserve
statement does not appear in
show config
listings. To verify
IP Preserve in a configuration file, open the file in a text editor and view
the last line. For an example of implementing IP Preserve in a configura-
tion file, see figure 7-4, below.
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).
Summary of Contents for ProCurve 4104GL
Page 2: ......
Page 26: ...xxiv Getting Started Need Only a Quick Start ...
Page 34: ...1 8 Selecting a Management Interface Advantages of Using HP TopTools for Hubs Switches ...
Page 50: ...2 16 Using the Menu Interface Where To Go From Here ...
Page 172: ...8 24 Time Protocols SNTP Messages in the Event Log ...
Page 240: ...10 30 Configuring for Network Management Applications CDP ...
Page 288: ...11 48 Port Based Virtual LANs VLANs and GVRP GVRP ...
Page 480: ...C 38 Troubleshooting Restoring a Flash Image ...
Page 486: ...D 6 MAC Address Management Determining MAC Addresses ...
Page 490: ......
Page 502: ...12 Index ...
Page 503: ......