Mailinglist Archive: opensuse-kernel (47 mails)

[Bruno Friedmann <bruno@xxxxxxxxxxx>]

On 01/09/2012 07:40 PM, Bruno Friedmann wrote:
> On a computer here setup years ago, we use the ip pass trough functionality 
> of the router to get all the internet traffic
> directly on a network card setup with the external ip address.
> This has been work from years now, and if I restart the 12.1 with the older 
> 11.4 kernel 2.6.37 it works too.
>
> Now what's happen, I get thousand of connection on that interface (dns 
> behind) and the arp cache is full in terms of minutes
>
> I've already apply new values in sysctl.conf to have more time but it not a 
> real working situation
>
> it seems on 3.1 some changes happened in the related code and here it seems 
> to live a patch
> http://patchwork.ozlabs.org/patch/123208/
>
>
>
> a simple ip neigh show | wc -l
> ARP : 2012-01-09 19:10:39 :  0
> ARP : 2012-01-09 19:11:09 :  0
> ARP : 2012-01-09 19:11:39 :  42
> ARP : 2012-01-09 19:12:09 :  73
> ...
> ARP : 2012-01-09 19:37:09 :  554
> ARP : 2012-01-09 19:37:39 :  558
> ARP : 2012-01-09 19:38:09 :  562
>
> sysctl.conf
>
> # Patch for neibhboor table
> # Force gc to clean-up quickly
> net.ipv4.neigh.default.gc_interval = 3600
> # Set ARP cache entry timeout
> net.ipv4.neigh.default.gc_stale_time = 3600
> # Setup DNS threshold for arp
> net.ipv4.neigh.default.gc_thresh3 = 4096
> net.ipv4.neigh.default.gc_thresh2 = 2048
> net.ipv4.neigh.default.gc_thresh1 = 1024
>
>
> if someone can drive me to build correctly under openSUSE 12.1 kernel the 
> patch I can test it and report success or failure.
>
> Thanks

reported as https://bugzilla.novell.com/show_bug.cgi?id=741452


-- 

Bruno Friedmann
Ioda-Net Sàrl www.ioda-net.ch

openSUSE Member & Ambassador
GPG KEY : D5C9B751C4653227
irc: tigerfoot
-- 
To unsubscribe, e-mail: opensuse-kernel+unsubscribe@xxxxxxxxxxxx
To contact the owner, e-mail: opensuse-kernel+owner@xxxxxxxxxxxx