netdev - Re: problem with flowi structure

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Message-ID: <AANLkTi=t2=jqu3XCC-3LK7x1_icke168Bqt-kmds6eOt@mail.gmail.com>
Date:	Fri, 17 Sep 2010 19:05:14 +0200
From:	Nicola Padovano <nicola.padovano@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	AIJAZ BAIG <aijazbaig1@...il.com>,
	netfilter-devel <netfilter-devel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: problem with flowi structure

ok man :)
the last question is about  fl.nl_u.ip4_u.saddr = 0...
is it a kind of "jolly" selector of the source address?
i.e. if we have a simplified cache route

SOURCE IP    DEST IP    NEXT HOP
ips1                  google         nexthop1
ips2                  google         nexthop2

with
...saddr = 0
....daddr = google
....tos =....
i get nexthop1 or nexthop2. right?


On Fri, Sep 17, 2010 at 6:34 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> Le vendredi 17 septembre 2010 à 18:27 +0200, Nicola Padovano a écrit :
>> > With different keys (src addr, tos, fwmark, ...) we can have a lot of
>> > different routes for apparently same destination
>> and why this reasoning it isn't present on the routing table?
>> I mean: there will be a reason for which this isn't present in the routing table
>>
>>
>
> It is present, of course, since route cache can be flushed (or
> bypassed), you need to be able to rebuild it from a stable reference.
>
> ip rule ls
>
> ip ro list table xxx
>
>
>
>



-- 
Nicola Padovano
e-mail: nicola.padovano@...il.com
web: http://npadovano.altervista.org
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