[Bug #551] ifconfig command does not flush ARP cache

[nobody]

=================== BUG #551: FULL BUG SNAPSHOT ===================
http://savannah.gnu.org/bugs/?func=detailbug&bug_id=551&group_id=68

Submitted by: ud3                       Project: grub                           
Submitted on: 2002-Jun-05 17:07
Category:  Network                      Severity:  Major                        
Priority:  None                         Bug Group:  Software Error              
Resolution:  None                       Assigned to:  None                      
Status:  Open                           Release:  0.93                          
Reproducibility:  Every Time            Planned Release:                        

Summary:  ifconfig command does not flush ARP cache

Original Submission:  The ifconfig function does not flush the entries in the 
ARP cache when it changes the server's or the gateway's IP address.

The sequence
 tftpserver 1.1.1.1
 module (nd)/foo
 tftpserver 2.2.2.2
 module (nd)/bar

will result in the TFTP request for /bar being sent to 2.2.2.2 at 1.1.1.1's MAC 
address.

The patch below fixes this problem by invalidating (zeroing) the respective ARP 
cache entry when changing the gateway or server IP. An ARP request will be 
issued on next use of the IP, installing the correct MAC address.



No Followups Have Been Posted


File Attachments
****************

-------------------------------------------------------
Date: 2002-Jun-05 17:07  Name: grub-ifconfig-patch  Size: 1KB   By: ud3
patch
http://savannah.gnu.org/bugs/download.php?group_id=68&bug_id=551&bug_file_id=24


For detailed info, follow this link:
http://savannah.gnu.org/bugs/?func=detailbug&bug_id=551&group_id=68