Networking Forums

Networking Forums > Computer Networking > Windows Networking > Replacing ARP cache entry when receiving gratuitous ARP

Reply
Thread Tools Display Modes

Replacing ARP cache entry when receiving gratuitous ARP

 
 
pavius@gmail.com
Guest
Posts: n/a

 
      10-18-2007, 08:59 PM
Hi.

Simple scenario: Windows machine learns that IP:A resides on MAC:A. A
gratuitous ARP is received saying that IP:A now resides under MAC:B.
Windows, by default, will ignore this and retain IP:A resides on MAC:A
in its ARP cache. Is there a way to configure Windows to replace
updated cache entries (as it should)?

Thanks

 
Reply With Quote
 
 
 
 
Phillip Windell
Guest
Posts: n/a

 
      10-19-2007, 02:59 PM
ARP entries don't "live" long enough to matter.
Sometimes they aren't even the true MAC of the target Host anyway,...they
are the MAC of the router between the two segments when more than one
segment exists.
The machine will discover the correct MAC the next time it has to
communicate with that particular Host.

--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------

<(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ups.com...
> Hi.
>
> Simple scenario: Windows machine learns that IP:A resides on MAC:A. A
> gratuitous ARP is received saying that IP:A now resides under MAC:B.
> Windows, by default, will ignore this and retain IP:A resides on MAC:A
> in its ARP cache. Is there a way to configure Windows to replace
> updated cache entries (as it should)?
>
> Thanks
>



 
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Do i need to send gratuitous ARP request after restarting network service after online migration. will_u_tellmemore Linux Networking 3 12-21-2006 10:32 PM
Windows response to gratuitous ARP messages Ken L Windows Networking 0 03-27-2006 05:42 PM
Replacing MN-500 Bob Broadband Hardware 1 11-28-2004 11:53 PM
How to send Gratuitous ARP ? Rajesh Gupta Windows Networking 0 10-08-2004 06:04 PM
Is it B or G I'm receiving? Gord Ipsofacto Wireless Internet 5 05-24-2004 11:09 PM



1 2 3 4 5 6 7 8 9 10 11