This is another drawback : all outgoing traffic (to
Internet) has to go
through one of our gateways, and can not be forwareded to Internet
directly by an endpoint via its local (NATted) ISP.
Yes of course. In our case that is not very important because our gateway is in
a datacenter in Amsterdam, where most of the internet traffic passes anyway, and
the ping time to typical internet hosts nearby is like 2ms. I have a 5.5ms
ping time to our gateway via my VDSL connection, and ~9ms via the radio links.
That isn't an issue.
In Germany it should not really be a problem to do it like this, they could have
several datacenters across the country too. The trick is of course to find
something that is inexpensive enough to pay it out of someone's pocket, as
setting up a donation or contribution system is quite difficult, especially
in the amateur radio community.
(in Dutch a Ham is called "zendamateur" which is often written as
"centamateur"
in situations concerning financing community projects. it is funny that many
amateurs have no problem paying like 2000-4000 euro for a transceiver, but won't
consider paying 20 euro/year to sponsor a community project)
Rob