On Tuesday 02 March 2004 02:31 am, Erich Titl wrote:

> >
> >The 2.6 kernel implementation of IPSEC threw out the baby with the
> >bath water.
>
> Are you referring to the native 2.6 IPSEC implementation?

Yes.

>
> >- Netfilter is totally broken with respect to IPSEC.
> >- While it makes OE work reasonably, it makes IPSEC tunneling totally
> >different from any other Linux-based tunnel.
>
> Even when OE is disabled? I never considered it to be _that_ important.
> Possibly because it is difficult to get a FQDN in Europe nowadays.

The 2.6 native implementation does away with the 'ipsecN' devices. So all 
VPN/tunnel types *except* IPSEC use a separate device for tunneling; once the 
changes to netfilter to *really* support this implementation are in place, 
IPSEC will pass each tunneled packet through the tables twice -- once for the 
unencrypted copy of the packet and once for the encrypted packet.

>
> >While there is work going on in the Netfilter project to correct the first
> >problem, the second seems to be here to stay.
> >
> >As things currently stand, Shorewall will have minimal support for IPSEC
> >tunnels under the 2.6 kernels.
>
> Considering the current 2.4 LEAF distribution (which I doubt will move to
> 2.6 in a short timeframe) would it be most reasonable to go with openswan
> 1.0?
>

I've not personally tried it, Erich -- there was one user on one of the lists 
who was seeing traffic in one direction (inbound IIRC) bypassing the ipsec0 
device but I never heard if that was a problem with his tunnel setup or a 
feature of openswan...

-Tom
-- 
Tom Eastep    \ Nothing is foolproof to a sufficiently talented fool
Shoreline,     \ http://shorewall.net
Washington USA  \ [EMAIL PROTECTED]




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