[BusyBox 0000356]: Answering ARP with invalid response when queried by firewall

bugs at busybox.net bugs at busybox.net
Wed Sep 14 14:46:58 UTC 2005


A NOTE has been added to this issue. 
====================================================================== 
http://busybox.net/bugs/view.php?id=356 
====================================================================== 
Reported By:                wphelps
Assigned To:                BusyBox
====================================================================== 
Project:                    BusyBox
Issue ID:                   356
Category:                   Networking Support
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
====================================================================== 
Date Submitted:             07-25-2005 22:52 PDT
Last Modified:              09-14-2005 07:46 PDT
====================================================================== 
Summary:                    Answering ARP with invalid response when queried by
firewall
Description: 
When a SonicWALL TZ170 (WAN port) sends ARP queries through a busybox
system acting as a bridge, responses with a HW addr of 00:00:00:00:00:00
are sent instead of the correct address of the Cisco router on the other
side of the bridge. This is consistent when using different TZ170s.  A
SonicWALL engineer could not find anything wrong with the TZ170 operation.
 To make sure it was not a hardware level issue I tried using a hub between
the firewall and the bridge -- no difference.  Although, both the TZ170 and
the bridge box seem to work correctly when an ordinary PC running WinXP is
substituted for the other box and I try simple ping/arp tests.  The
workaround is to make a manual SAT entry on the TZ170 with the router's HW
and IP addresses.  How transparent is the bridging busybox?

This seems similar to issue http://busybox.net/bugs/view.php?id=154
Are there any specific tests I should do to help isolate the problem?

====================================================================== 

---------------------------------------------------------------------- 
 tbrown9 - 08-27-05 10:34  
---------------------------------------------------------------------- 
Would you elaborate on the workaround that you did on the TZ170?  Where do
you make the SAT entry? 

---------------------------------------------------------------------- 
 wphelps - 08-29-05 23:22  
---------------------------------------------------------------------- 
Using the web GUI of the TZ, go to the network ARP table; in addition to
viewing, one can add entries.  Also, I seem to be having a similar problem
with a W2K3 server directly behind the bridge instead of the TZ; I hope to
find a fix later today. 

---------------------------------------------------------------------- 
 bernhardf - 09-14-05 07:46  
---------------------------------------------------------------------- 
How does busybox come into play with this?

The arp table is supposedly maintained by the kernel, no?

Please describe what *exact* busybox commands are involved to reproduce
this issue.

thanks,

This sounds like a duplicate of bug 154 and 356 or vice versa. 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
07-25-05 22:52  wphelps        New Issue                                    
07-25-05 22:52  wphelps        Status                   new => assigned     
07-25-05 22:52  wphelps        Assigned To               => BusyBox         
08-27-05 10:34  tbrown9        Note Added: 0000441                          
08-29-05 23:22  wphelps        Note Added: 0000471                          
09-14-05 07:46  bernhardf      Note Added: 0000526                          
======================================================================




More information about the busybox-cvs mailing list