[wplug] Clearing arp cache

Greg Simkins gregsim at telerama.com
Mon Jul 19 06:30:19 EDT 2004


I want to thank all those that offered helpful suggestions and comments
regarding the arp cache issue.  The discussion has been very interesting.
But, I have not been able to clear the cache.  

I tried the ip neigh flush all.  

I got the command line back suggesting that the command executed OK, but
when I then entered arp -a, the arp cache remained unchanged.  

Is there something else I need to do to ensure that the ip command is
working properly?  

Is there some way to use a wild card to name all hosts so that 

arp -d <wildcard>

would work?  

arp -d <specific host name> 

works OK to clear the named host from the cache.  

Greg Simkins
Pittsburgh, PA
Phone:  412-341-7926
FAX:  412-341-0790
Mobile:  412-478-2892
 

-----Original Message-----
From: wplug-bounces+gregsim=telerama.com at wplug.org
[mailto:wplug-bounces+gregsim=telerama.com at wplug.org] On Behalf Of Brian
Sammon
Sent: Wednesday, July 14, 2004 2:37 PM
To: General user list
Subject: Re: [wplug] Clearing arp cache 

> It's completely possible, looking at the arp.c sources from FreeBSD and
> net-tools (Linux), to make arp -d -a work in Linux.  However I suspect
> the real reason it hasn't been implemented in net-tools' arp is because
> there is another command to flush the arp cache:
> 
> 	ip neigh flush all

What package is the "ip" command in?  I don't seem to have it on my
computer.


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