From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Fiedler Roman <Roman.Fiedler@ait.ac.at>
Cc: "netfilter-devel@vger.kernel.org" <netfilter-devel@vger.kernel.org>
Subject: Re: Ulog/filter device name does not match effective device name of data flow: expected?
Date: Thu, 12 Jan 2012 03:46:54 +0100 [thread overview]
Message-ID: <20120112024654.GD12255@1984> (raw)
In-Reply-To: <9F69795E29C890408AC2DAF646C89BB379CF93964B@MAILBOX.arc.local>
On Tue, Jan 10, 2012 at 02:04:12PM +0100, Fiedler Roman wrote:
> Hi,
>
> Just a question, if this is intended behavior in NAT/logging with ulog/filter, I know it should be some border case:
>
>
> In test environment, all 10/8 IPs are routed via lo by default to avoid test data from 10/8 net leaving the host.
>
> 10.0.0.0/8 dev lo scope link src 10.0.0.1
>
> To allow some connections to reach machines outside, these connections are natted, e.g.
>
> Iptables -t nat -A OUTPUT -o lo -d 10.0.0.5 -p tcp -m tcp --dport 80 -j DNAT --to-destination xxx.172:80
>
> This allows to create the connection, but with two side effects:
>
> Although the package leaves via eth0, ulog will report OUT=lo:
>
> Jan 10 12:06:13 v3lsn1105 iptables:ACCEPT-INFO IN= OUT=lo MAC= SRC=10.xx.xx.3 DST=xxxx.172 LEN=60 TOS=00 PREC=0x00 TTL=64 ID=46425 CE DF PROTO=TCP SPT=48808 DPT=80 SEQ=1237479374 ACK=0 WINDOW=32792 SYN URGP=0
You forgot to paste your NFLOG rule. Where is it?
next prev parent reply other threads:[~2012-01-12 2:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-10 13:04 Ulog/filter device name does not match effective device name of data flow: expected? Fiedler Roman
2012-01-12 2:46 ` Pablo Neira Ayuso [this message]
2012-01-12 8:50 ` AW: " Fiedler Roman
2012-01-13 13:15 ` Pablo Neira Ayuso
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120112024654.GD12255@1984 \
--to=pablo@netfilter.org \
--cc=Roman.Fiedler@ait.ac.at \
--cc=netfilter-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.