Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

Bug 27375

Summary:	dhcpcd can`t get IP infos at first attempt
Product:	[Retired] Red Hat Linux	Reporter:	Marc Schmitt <marc.schmitt>
Component:	dhcpcd	Assignee:	Elliot Lee <sopwith>
Status:	CLOSED WORKSFORME	QA Contact:
Severity:	low	Docs Contact:
Priority:	medium
Version:	7.0
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2001-07-16 13:32:45 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Marc Schmitt 2001-02-13 11:49:35 UTC

From Bugzilla Helper:
User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.2.16-3 i686)


When using dhcpcd only to determine the IP infos (pump can`t set
hostnames), dhcpcd is not able to send a correct dhcp request at the first
attempt.
I.e. it sends a request with the clientID 00:00:00:00:00:00, instead of the
real MAC address of the NIC.
The problem did not change with the lastest kernel (2.2.17-14) nor with the
latest dhcpcd version (1.3.19pl6-1).
The second attempt will work, resulting in a dhcp request with the correct
MAC address. It looks like the kernel module loader loads the module for
the NIC (3c90x) by the time dhcpcd is called in ifup but then fails to
provide the MAC address to dhcpcd.

Reproducible: Always
Steps to Reproduce:
1. ifdown eth0 ; rmmod 3c90x
2. /sbin/dhcpcd -R -B -H eth0

	

Actual Results:  dhcp server log: dhcpd: no free leases on network
129.132.10.0 match 00:00:00:00:00:00

On the client: 3Com 3c90x Version 1.0.0i 1999 (linux_drivers)
timeout after 60s

Expected Results:  dhcp server log:
dhcpd: DHCPDISCOVER from 00:b0:d0:7b:b6:6c via hme0
dhcpd: DHCPOFFER on 129.132.10.102 to 00:b0:d0:7b:b6:6c via hme0
dhcpd: DHCPREQUEST for 129.132.10.102 from 00:b0:d0:7b:b6:6c via hme0
dhcpd: DHCPACK on 129.132.10.102 to 00:b0:d0:7b:b6:6c via hme0



Interestingly, doing step 2. with pump works w/o any problems.

An easy workaround is to use pump first and dhcpcd the next line.

Comment 1 Bill Nottingham 2001-02-13 23:50:52 UTC

Does it work better if you use the 3c59x driver?

Comment 2 Marc Schmitt 2001-02-14 10:26:43 UTC

Indeed, the problem disappears when using the module 3c59x instead of 3c90x.

Comment 3 Elliot Lee 2001-08-08 05:03:04 UTC

Sounds like already resolved.