Re: RFE: Connection Sharing

[Dan Williams <dcbw redhat com>]

On Sun, 2006-08-27 at 07:51 -0400, Saikat Guha wrote:
> Would NM be the appropriate place to have "connection sharing" that just
> works?

Quite appropriate.  This has been planned for a while, and blocks on
multiple active devices, which in turn blocks on getting the last little
bits of routing magic done in libnl, which Thomas Graf more or less
promised to do last week.

NetworkManager isn't in the business of doing firewall configuration
though, and the best direction here is to get something like Firestarter
D-Bus enabled so that anything that needs to modify firewall rules can
request such modifications.  Requests would be subject to standard D-Bus
security restrictions and verification of course.

David Zeuthen has written about this a lot in a couple of blog entries,
which are somewhere here:  http://davidz.fubar.dk .

Dan

> Provide bridging or NAT'ing to the interface connected.
> 
> wi-fi to wired bridging: allow laptop connected to the net over wireless
> to provide internet access to another laptop (or lan) connected through
> a crossover cable (or wired switch).
> 
> wired to wi-fi bridging: allow laptop connected to the net over a wired
> network to act as an access-point for other wireless devices (either
> ad-hoc mode or access-point mode depending on wireless driver support).
> 
> NM would start a DHCP server on the subordinate interface, enable ip
> forwarding, punch firewall rules to allow forwarded packets through, and
> cleanup the above when sharing is stopped.
> 
> thoughts?
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