From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jeroen Wortelboer" Subject: problems filtering ppp devices Date: Mon, 9 Sep 2002 11:40:25 +0200 Sender: netfilter-admin@lists.netfilter.org Message-ID: <004d01c257e4$eceb7890$0401a8c0@titanium> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004A_01C257F5.B061F910" Return-path: Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: To: netfilter@lists.netfilter.org This is a multi-part message in MIME format. ------=_NextPart_000_004A_01C257F5.B061F910 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi there, I am encountering some weird stuff while filtering a ppp device. It seems like traffic from the ppp device does not enter the INPUT or = OUTPUT table. Only when the destination of the traffic is another = interface on the same machne does the INPUT or OUTPUT table see the = traffic (i am logging all traffic through the ppp device. . .).=20 Filtering this fraffic on the forward of nat tables works fine, but = leaves me with an unhappy feeling... I did some google-ing for this problem and came up empty. I hope I am = doing something wrong here because otherwise this could be a serious = problem.=20 Perhaps someone on this list can help me out why the ppp-traffic seems = to skip these tables.... For the record, i am running kernel 2.4.9-34 (RedHat) with pptpd-1.1.2-2 = and ppp-mppe-2.4.1-6. The ppp devices are started bij the pptpd process. Any suggestions are welcome. Thanks, Jeroen. ------=_NextPart_000_004A_01C257F5.B061F910 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi there,

I am encountering some weird stuff = while filtering=20 a ppp device.

It seems like traffic from the ppp = device does=20 not enter the INPUT or OUTPUT table. Only when the destination of = the=20 traffic is another interface on the same machne does the INPUT or OUTPUT = table=20 see the traffic (i am logging all traffic through the ppp device. . .).=20

Filtering this fraffic on the forward = of nat tables=20 works fine, but leaves me with an unhappy feeling...

I did some google-ing for this problem = and came up=20 empty. I hope I am doing something wrong here because otherwise this = could be a=20 serious problem.

Perhaps someone on this list can help = me out why=20 the ppp-traffic seems to skip these tables....

For the record, i am running kernel = 2.4.9-34=20 (RedHat) with pptpd-1.1.2-2 and ppp-mppe-2.4.1-6. The ppp devices are = started=20 bij the pptpd process.

Any suggestions are = welcome.

Thanks,

Jeroen.

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