Configuring IP Addressing

IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads

 

 

 

 

 

 

 

 

 

 

 

 

Using figure 8-7, above, switches 1 - 3 ignore these

 

 

 

 

 

 

entries because the file implements IP Preserve and

 

 

 

 

 

 

their current IP addressing was not acquired through

 

 

 

 

 

 

DHCP/Bootp.

 

 

 

 

 

 

 

 

 

 

 

 

Switch 4 ignores IP Preserve and implements the

 

 

 

 

 

 

DHCP/Bootp addressing and IP Gateway specified in

 

 

 

 

 

 

this file (because its last IP addressing was acquired

 

 

IP Preserve Command

 

from a DHCP/Bootp server).

 

 

 

 

 

 

 

 

Figure 8-8. Configuration File in TFTP Server, with DHCP/Bootp Specified as the IP Addressing Source

If you apply this configuration file to figure 8-7,switches 1 - 3 will still retain their manually assigned IP addressing. However, switch 4 will be configured with the IP addressing included in the file.

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