Question regarding DHCP

Hi All,
 
I need to migrate DHCP pool to completely new pool without restarting the end
user systems.Is that possible?
 
My approach was:
make the lease of existing pool as 1 second.
clear ip dhcp binding *
clear arp
make arp timeout 0 on the interface
the pc will send a new arp request and it will get address from the new pool
This is the present config:
ip dhcp excluded-address 3.3.3.1
!
ip dhcp pool TEST
   network 3.3.3.0 255.255.255.0
   default-router 3.3.3.3
   dns-server 4.2.2.2
int vlan 3
ip address 3.3.3.3 255.255.255.0
I changed it to:
ip dhcp excluded-address 1.1.1.1
!
int vlan 3
ip address 1.1.1.1 255.255.255.0
ip dhcp pool TEST
lease 0 0 1
ip dhcp pool TEST
lease 1
   network 1.1.1.0 255.255.255.0
   default-router 1.1.1.1
   dns-server 4.2.2.2
int vlan 3
arp timeout 0
clear ip dhcp bindin *
clear arp.
I dont see any binding on the switch but pc still has an old pool address.
Does the PC maintains its
own arp-cache which could be cleared by only by restartig or power cycling the
NIC ? Any other way?

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Received on Thu Apr 22 2010 - 05:55:41 ART