Date: Tue, 27 Nov 2001 13:59:46 +0300 From: "Andrey Simonenko" <simon@comsys.ntu-kpi.kiev.ua> To: <freebsd-questions@freebsd.org> Subject: Re: pppd active-filter question Message-ID: <027f01c17732$a0af55c0$6d36120a@comsys.ntukpi.kiev.ua> References: <200111270919.fAR9JXB36051@ns.uh.ru>
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----- Original Message -----
From: Alexander S. Volchenkov <volax@uh.ru>
Newsgroups: lucky.freebsd.questions
Sent: Tuesday, November 27, 2001 1:04 PM
Subject: pppd active-filter question
> I've got an interesting problem. My pppd started with demand option and
> sometimes it brings up phone line with no network activity. I'm tried to
> recognize this but I can't do it with tcpdump - open connection longs too
> small amount of time. My modem keeps connection alive for 3 minutes (idle
> 180) and this is not good. I suppose this happens because of DNS updates. I'm
> trying to start pppd with option:
>
> active-filter 'not (src port 53)'
>
> to disable dns demand dialing, but starting pppd causing error message:
>
> pppd[2073]: Couldn't set active-filter in kernel: Inappropriate ioctl for
> device
>
> What does it mean? How can i set pppd active-filter?
>
Did you enable PPP_FILTER option in your kernel? Also note following from
the pppd(8) manual page:
active-filter filter-expression
This option only available if both the kernel and pppd were compiled
with PPP_FILTER defined.
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