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Bug 715141 - Wrong Ethertype for RARP
Wrong Ethertype for RARP
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm (Show other bugs)
6.1
Unspecified Unspecified
unspecified Severity medium
: rc
: ---
Assigned To: Amos Kong
Virtualization Bugs
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2011-06-21 21:00 EDT by Hiroaki Tomozawa
Modified: 2015-05-24 20:06 EDT (History)
7 users (show)

See Also:
Fixed In Version: qemu-kvm-0.12.1.2-2.167.el6
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2011-12-06 10:52:46 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:1531 normal SHIPPED_LIVE Moderate: qemu-kvm security, bug fix, and enhancement update 2011-12-05 20:23:30 EST

  None (edit)
Description Hiroaki Tomozawa 2011-06-21 21:00:38 EDT
Description of problem:

qemu-kvm defines a wrong ethertype value for RAPR frames
in savevm.c:

 #define ETH_P_RARP 0x0835

The value must be a typo and should have been 0x8035,
as an upstream commit already has a fix:

https://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commit;h=f8778a7785d530515b0db395606f327fd5f94a92


Version-Release number of selected component (if applicable):

 qemu-kvm-0.12.1.2-2.160.el6.x86_64
Comment 9 FuXiangChun 2011-09-27 00:02:18 EDT
reproduce on qemu-kvm-0.12.1.2-2.160.el6.x86_64

steps to reproduce:

1. boot guest and do local migrate
2. tcpdump  -e -i breth0  -vv   in host
23:13:39.730023 52:56:00:94:a3:20 (oui Unknown) > Broadcast, ethertype Unknown (0x0835), length 60:
        0x0000:  0001 0800 0604 0003 5256 0094 a320 0000  ........RV......
        0x0010:  0000 5256 0094 a320 0000 0000 0000 0000  ..RV............
        0x0020:  0000 0000 0000 0000 0000 0000 0000       ..............
23:13:39.880390 52:56:00:94:a3:20 (oui Unknown) > Broadcast, ethertype Unknown (0x0835), length 60:
        0x0000:  0001 0800 0604 0003 5256 0094 a320 0000  ........RV......
        0x0010:  0000 5256 0094 a320 0000 0000 0000 0000  ..RV............
        0x0020:  0000 0000 0000 0000 0000 0000 0000       ..............

verify on qemu-kvm-0.12.1.2-2.192.el6.x86_64

steps to reproduce:
1. boot guest and do local migrate
2. tcpdump  -e -i breth0  -vv   in host
22:58:28.784766 52:56:00:94:a3:20 (oui Unknown) > Broadcast, ethertype Reverse ARP (0x8035), length 60: Ethernet (len 6), IPv4 (len 4), Reverse Request who-is 52:56:00:94:a3:20 (oui Unknown) tell 52:56:00:94:a3:20 (oui Unknown), length 46

testing result summary
1) entertype of RARP is 0x0835 in qemu-kvm-0.12.1.2-2.160.el6.x86_64, and cann't get RARP protocol 
2) entertype of RARP is 0x8035 in qemu-kvm-0.12.1.2-2.192.el6.x86_64, and can get RARP protocol

base on above testing result, this bug has been fixed.
Comment 11 errata-xmlrpc 2011-12-06 10:52:46 EST
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2011-1531.html

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