The best for now is to give up, and use some Linux
device (like
Raspberry Pi) to set 44networking.
We've been telling him that for weeks now...
Of course, now he has a MikroTik router which is much more flexible than the average
router.
These things (as tiny as they are) can run a virtual machine! (the feature called
Metarouter)
It may be possible to run a small virtual machine with Linux on it, that either does the
tunnel and RIP processing, or is running the script to re-configure the main router all
the
time to add/remove the tunnels.
That way it may be possible to get it working even on this low-end router, with the
advantage
that it has multiple ethernet ports and even WiFi.
It would actually be nice to have a solution for the appliance operator to get an IPIP
tunnel,
although there of course are many challenges to overcome.
I should find time to play with the Metarouter running plain Linux...
Rob