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On Mon, Jul 23, 2012 at 03:48:18PM +0900, Simon Horman wrote:
> On Thu, Jul 12, 2012 at 10:43:22PM +0300, Julian Anastasov wrote:
> >
> > Hello,
> >
> > On Thu, 12 Jul 2012, Pablo Neira Ayuso wrote:
> >
> > > On Wed, Jul 11, 2012 at 09:25:26AM +0900, Simon Horman wrote:
> > > > From: Julian Anastasov <ja@xxxxxx>
> > > >
> > > > The FTP application indirectly depends on the
> > > > nf_conntrack_ftp helper for proper NAT support. If the
> > > > module is not loaded, IPVS can resize the packets for the
> > > > command connection, eg. PASV response but the SEQ adjustment
> > > > logic in ipv4_confirm is not called without helper.
> > > >
> > > > Signed-off-by: Julian Anastasov <ja@xxxxxx>
> > > > Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
> > > > ---
> > > > net/netfilter/ipvs/Kconfig | 3 ++-
> > > > 1 file changed, 2 insertions(+), 1 deletion(-)
> > > >
> > > > diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig
> > > > index f987138..8b2cffd 100644
> > > > --- a/net/netfilter/ipvs/Kconfig
> > > > +++ b/net/netfilter/ipvs/Kconfig
> > > > @@ -250,7 +250,8 @@ comment 'IPVS application helper'
> > > >
> > > > config IP_VS_FTP
> > > > tristate "FTP protocol helper"
> > > > - depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT
> > > > + depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT && \
> > > > + NF_CONNTRACK_FTP
> > >
> > > If you require FTP NAT support, then this depends on NF_NAT_FTP
> > > instead of NF_CONNTRACK_FTP.
> >
> > No, I just checked again, it works without nf_nat_ftp,
> > only nf_nat, nf_conntrack_ftp and iptable_nat are needed.
> > We use packet mangling part from nf_nat (nf_nat_mangle_tcp_packet).
>
> Is there a consensus on this?
Fine with me, just wanted to make sure this what you wanted. Thanks
Simon.
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