Re: Binding to no particular address/INADDR_ANY?

[Toralf Lund <toralf lund pgs com>]

Toralf Lund wrote:
> Frank Rehberger wrote:
>   
> >  On 16.09.2010 13:54, Toralf Lund wrote:
> >   
> >     
> > > When setting up a TCP/IP based server ORB, I can specify the IP
> > > host-name to bind to *via option -ORBIIOPIPName=..., or use an
> > > internal default, which is influenced by the value of -ORBNetId. But
> > > it does not seem like I can choose not to bind to an address at all,
> > > as in set up the server to listen for connections on ANY interface the
> > > machine may have. Why is that? Or is there some way I can do this?
> > > I've **-ORBIIOPIPName=0.0.0.0 based on the theory that this would be
> > > like specifying INADDR_ANY in a socket address structure, but it
> > > didn't seem to work...
> > >     
> > >       
> > ORBit2 has not been designed for this case. Nonetheless, it would be
> > possible to add this INADDR_ANY  feature.
> >
> > Listening to all interfaces, would require to encode all endpoints into
> > each object reference, which could be implemented quite easily, but
> > blowing up the IORs extremely. Moreover, using this strategy for
> > clients  it becomes unclear which of the encoded endpointsin IOR is
> > reachable/routable, which may cause timely connection-trials.
> >   
> >     
> I don't understand what you are talking about here, I'm afraid.
Actually, I think I do understand what you mean about the IOR strings 
now that I think about it. It's just that

  1. I haven't really thought a lot about support for multiple network
     interfaces. However, life would be *a lot* easier if I could only
     set up the ORB so that it would allow connections via
     localhost/loopback (i.e. a 127... address) in addition to a real
     IP address.
  2. I don't really care about IOR strings anyway. I'd be happy with a
     setup where a lookup of one of those only tried one of the
     available addresses, as long as corbaloc: would also work for the
     others.


- Toralf



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