[Openswan Users] How to combine two VPN tunnels

[Curu Wong]

I found that the book<<*Building and Integrating Virtual Private Networks
with Openswan>> *,page 91, said that we can use a host name in left= ... and
right=.... however,Even after I set USE_DYNAMICDNS?=true in Makefile.inc and
compile openswan again,When I add a connection with left=somehost.dyndns.org,it
still failed,saying that :

022 connection must specify host IP address for our side
037 attempt to load incomplete connection


2009/4/13 Marcus Carlson <marcus at mejlamej.nu>

> Hi,
>
> If I'm correct then OpenVPN would allow you to do this. But of course
> the roadwarriors have to use a different client then.
>
> Marcus
>
> Curu Wong skrev:
> > Got! Thanks.
> > then,is there a way for roadwarrior to connect to subnetB ? Should I
> > use dynamic dns or something like that?
> >
> > 2009/4/13 Paul Wouters <paul at xelerance.com <mailto:paul at xelerance.com>>
> >
> >     On Mon, 13 Apr 2009, Curu Wong wrote:
> >
> >           I am in such a situation of VPN configuration:
> >          gateway gwA with a fixed public IP,And there is a subnet
> >         192.168.9.0/24 <http://192.168.9.0/24> behind it.
> >          gateway gwB,which obtains its IP from ISP using pppoe,And
> >         there is
> >         a subnet 192.168.30.0/24 <http://192.168.30.0/24> behind it.
> >          There is a tunnel between the two subnets via gwA and gwB.And
> >         there
> >         is a tunnel for road warrior to connect subnet 192.168.9.0/24
> >         <http://192.168.9.0/24> via gwA.
> >          What I want is to connect to both subnets
> >         (192.168.30.0/24,192.168.9.0/24
> >         <http://192.168.30.0/24,192.168.9.0/24>) as a road warrior via
> >         gwA, Is this
> >         possible?
> >           By the way,I don't want to use l2tp.
> >
> >
> >     You cannot, since subnetB or gwB would need to "know" where the
> >     roadwarrior is to ensure its packets for subnetB would get send
> >     via the tunnel to gwA. But since roadwarrior is on a dynamic IP,
> >     you cannot know.
> >
> >     Unless you route all non-local traffic for subnetB via a tunnel
> >     to gwA.
> >
> >     Paul
> >
> >
> > ------------------------------------------------------------------------
> >
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> > Building and Integrating Virtual Private Networks with Openswan:
> > http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155
> >
>
> _______________________________________________
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> Building and Integrating Virtual Private Networks with Openswan:
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>
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