[Fwd: Re: [LARTC] Problem with ip route . VERY SLOW]

[Fwd: Re: [LARTC] Problem with ip route . VERY SLOW]

[Bogdan Coman]

Hi,
Franck LEPRETTE wrote:

> Hello everybody
>
> I’m french and ‘im a network administrator.
>
> It the firs time I write on this mailing list ..
>
> I configure a debian distribution (the last one sarge) with iproute2 
> to route packets depending on source ip address
>
> It works fine but it is very very slow .
>
> When I make a ping for example on a windows machine :
>
> /[in French ]/
>
> /$> ping www.Google.Fr/
>
> /Envoi d'une requête 'ping' sur www.l.google.com [216.239.59.99] avec 
> 32 octets de données :/
>
> *It waits for a long time HERE .*
>
> *I think it’s the route decision which takes a long time ,*
>
I believe that is the DNS that makes it take longer here, and not source 
routing.

> **
>
> *Then it works fine .*
>
> / /
>
> /Réponse de 216.239.59.99 : octets2 tempsv ms TTL$1/
>
> /Réponse de 216.239.59.99 : octets2 tempsv ms TTL$1/
>
> /Réponse de 216.239.59.99 : octets2 tempsw ms TTL$1/
>
> /Réponse de 216.239.59.99 : octets2 tempsv ms TTL$1/
>
> / /
>
> Is there a solution to make the connection faster ?
>
> Is there any problems with routing on multiple interfaces ?
>
> Thanks in advance
>
> / /
>
>------------------------------------------------------------------------
>
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>  
>


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Re: [Fwd: Re: [LARTC] Problem with ip route . VERY SLOW]

[Andreas Unterkircher]

Bogdan Coman wrote:

>> /Envoi d'une requête 'ping' sur www.l.google.com [216.239.59.99] avec 
>> 32 octets de données :/
>>
>> *It waits for a long time HERE .*
>>
>> *I think it’s the route decision which takes a long time ,*
>>
> I believe that is the DNS that makes it take longer here, and not 
> source routing.
>
I don't belive that, because it's already resolved. Do you checked with 
tcpdump
where your packets are flowing?

Cheers,
Andreas

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RE: [Fwd: Re: [LARTC] Problem with ip route . VERY SLOW]

[Franck LEPRETTE]

I 'm not in front of my computer , so i can test tcpdump 
But I will try to do it tomorrow , 
Tx for the tip

 
-----Message d'origine-----
De : Andreas Unterkircher [mailto:unki@netshadow.at] 
Envoyé : lundi 24 octobre 2005 14:19
À : lartc@mailman.ds9a.nl
Objet : Re: [Fwd: Re: [LARTC] Problem with ip route . VERY SLOW]

Bogdan Coman wrote:

>> /Envoi d'une requête 'ping' sur www.l.google.com [216.239.59.99] avec 
>> 32 octets de données :/
>>
>> *It waits for a long time HERE .*
>>
>> *I think it’s the route decision which takes a long time ,*
>>
> I believe that is the DNS that makes it take longer here, and not 
> source routing.
>
I don't belive that, because it's already resolved. Do you checked with 
tcpdump
where your packets are flowing?

Cheers,
Andreas



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