Bug 53406 – Uses always the first received lease-time

Bug 53406 - Uses always the first received lease-time

Summary:	Uses always the first received lease-time

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	dhcpcd (Show other bugs)
Sub Component:
Version:	7.3
Hardware:	i386 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Elliot Lee
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Reported:	2001-09-07 20:25 EDT by Enrico Scholz
Modified:	2007-04-18 12:36 EDT (History)
CC List:	0 users

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Doc Type:	Bug Fix
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Last Closed:	2004-06-28 13:00:45 EDT
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Description Enrico Scholz 2001-09-07 20:25:25 EDT

When the lease-time gets changed on the DHCP-server, dhcpcd ignores these
changes and uses the first lease-time always:


1. configure server to send lease-time of 86400s
2. start dhcpcd (-->will renew in 43200s)
3. reconfigure server to lease-time of 10800s (3h)
4. strace -p `pidof dhcpcd` # (leads to a renew)
   | alarm(43200)                            = 75595

   --> uses still 43200 seconds

   (sniffing the traffic shows that dhcp-option 51 is set to 3h)


This is a nasty bug when used with dynamic DNS updates. Then the host loses
its A and PTR records for some hours, because server deletes them after 3h
but the clients renews them after 12h.

Comment 1 Elliot Lee 2002-01-04 13:29:36 EST

Hi,
Please test against the dhcpcd-1.3.21pl1 in rawhide, and see if this problem
still occurs.

Comment 2 Enrico Scholz 2002-01-23 08:39:51 EST

Problem still exists...

Comment 3 Elliot Lee 2002-04-15 12:18:57 EDT

After you changed the lease time on the server, did you have dhcpcd renew the
lease? Just a glaring omission that seemed rather obvious.

There should be a new dhcpcd in rawhide soon that might be worth trying out if
the renewal still uses the old lease time.

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