Bug 38465

Summary:	IP's published via static arp aren't useable
Product:	[Retired] Red Hat Linux	Reporter:	Jim Levie <jlevie>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.1	CC:	pekkas
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:	2004-09-30 15:38:58 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 Jim Levie 2001-04-30 21:46:16 UTC

From Bugzilla Helper:
User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.2.17-14 i686)


Creating a static arp entry with the "pub" qualifer should allow other
systems to obtain the MAC associated with that IP via "who-has". This
doesn't work on 7.1 (or 7.0 for that matter). The command used to create
the arp entry was: "arp -Ds 192.168.0.110 eth0 pub". The entry is visible
in the output of "arp -a" as: "? (192.168.0.110) at * PERM PUP on eth0".
However, the contents of /proc/net/arp show a MAC of 00:00:00:00:00:00.
Using a command of the form "arp -s 192.168.0.110 00:06:29:92:5A:71 pub"
yields the same result. 

Reproducible: Always
Steps to Reproduce:
1. Create a static "published" arp entry with: "arp -Ds 192.168.0.110 eth0
pub"
2. Attempt a ping of the IP while a sniffer (e.g., tcpdump is running)
	

Actual Results:  The sniffer trace will show arp requests reaching the
system, but no arp replies are generated.

Expected Results:  The system with the static arp entry should respond with
the MAC of the ethernet interface the arp entry is bound to.

Comment 1 Pekka Savola 2001-07-22 19:33:23 UTC

I haven't gotten /sbin/arp to work in a long, long time.

Please try to set the mapping with iproute's /sbin/ip, see if that works?

Comment 2 Phil Knirsch 2002-02-14 13:28:00 UTC

Looked at it, seems to be broken. Will check with ip later.

Read ya, Phil

Comment 4 Bugzilla owner 2004-09-30 15:38:58 UTC

Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
persists.

The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/