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Message-Id: <20120705.030027.655926012207641451.davem@davemloft.net> Date: Thu, 05 Jul 2012 03:00:27 -0700 (PDT) From: David Miller <davem@...emloft.net> To: bcrl@...ck.org Cc: netdev@...r.kernel.org, linux-ppp@...r.kernel.org Subject: Re: [PATCH next-next] ppp: change default for incoming protocol filter to NPMODE_DROP From: Benjamin LaHaise <bcrl@...ck.org> Date: Tue, 3 Jul 2012 21:32:58 -0400 > By default, the ppp_generic code initializes the npmode array that filters > incoming packet to accept packets for all protocols. This behaviour is > incorrect, as it results in packets for protocols that an older version > of a PPP implementation may not be aware of to be incorrectly accepted. > This behaviour is visible, for example, when sending IPv6 packets across a > ppp link where pppd has only been configured to use IPv4. > > This change should be safe since pppd will correctly set the protocols it > negotiates to NPMODE_PASS as the appropriate protocols transition to an Up > state. > > Signed-off-by: Benjamin LaHaise <bcrl@...ck.org> As far as I can tell, this has been this way for a very long time. Therefore it is the applications responsibility to adjust the filters to suit their needs and we really can't make such adjustments to this behavior. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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