This does not work.. sadly... 

[root@tower /root]# /sbin/ipfwadm -O -a deny -W ppp0 -P udp 138 139
/sbin/ipfwadm: unknown arguments found on commandline
Try `/sbin/ipfwadm -h' for more information.
[root@tower /root]#
 
[root@tower /root]# rpm -q ipfwadm
ipfwadm-2.3.0-6
[root@tower /root]#

I am looking into getting this going.. I seem to have some badly behaved
machines on the lan.. and I am seeing LONG up times with the 139 UDP
behavoir

thanks for the pointer... will see if there is anything on the net about
the syntaxt..

A



On Thu, 8 Oct 1998, brian beuning wrote:

> Date: Thu, 08 Oct 1998 21:44:16 -0400
> From: brian beuning <[EMAIL PROTECTED]>
> To: Ashley Drees <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED]
> Subject: Re: Blocking Netbios packets
> 
> Another approach is to use ipfwadm.  Something like this should do the trick
> 
>     ipfwadm -O -a deny -W ppp0 -P udp 138 139
> 
> This will actually keep linux from "outputting" any packets to the ppp0 interface
> for UDP ports 138 & 139.  I think the diald solutions will keep diald from
> bringing up the link for netbios traffic.  But if the link is already up, diald will 
>still
> forward the packets out to your ISP.
> 
> Brian Beuning
> 
> Ashley Drees wrote:
> 
> > I have a running diald, and it is working well, I need to now stop net bios 
>packets from bringing
> > up the link.
> >
> > I am at home now, but I think that the packets are UDP at 138 or 139, whenever a 
>win95 machine
> > logs into the ntserver that is on the LAN... diald calls the ISP.. not what I 
>want...
> >
> > I know this should be added to the filters, but so far I have not been able to 
>find the
> > correct way to get my filter line to work (I guess I am stupid  :-(  )
> >
> > if anyone can give me a pointer..
> >
> > Thanks..
> >
> > --
> >
> > Ash
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-diald" in
> > the body of a message to [EMAIL PROTECTED]
> 
> 
> 


Ash

Tel:     44 (0)181 968 3556
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