Renewing leases during failover?

[phn at icke-reklam.ipsec.nu]

Steve Rooke <steve.rooke at cdhb.govt.nz> wrote:
> I have the need to maintain allocated IP address assignments to WS but 
> I'm suffering from address depletion due to NIC and WS replacement using 
> static BOOTP. I wish to use DHCP with 3 month leases so that things 
> should remain static but at the same time I get the stale IPs back for 
> allocation.


ISC dhcpserver will assign an infinit leasetime for a bootp request

You can use a global statement :
 dynamic-bootp-lease-length 86400;

to limit these leases ( to 1 day in the above example)

Have a look in dhcpd.leases and confirm the infinit leases !



Peter h
> On a standalone ISC DHCP server, I can renew and release/renew and get 
> the same IP which was allocated via BOOTP. When I go into failover mode, 
> the secondary will renew the existing lease quite happily but each time 
> I release that lease, I get new IP address' in a sequence (this is in a 
> lab test environment).

> I guess it is not broken as the WS gets an IP address. I wonder in what 
> circumstances does a WC release a lease? Providing the WS does not 
> release the lease it had (or if DHCP in failover worked like the 
> primary), life would be perfect for me. 


-- 
Peter Håkanson         
        IPSec  Sverige      (At the Riverside of Gothenburg, home of Volvo)
           Sorry about my e-mail address, but i'm trying to keep spam out.
	   Remove "icke-reklam" and it works.