I am also interested in implementing some sort of openVPN tunnel with RIP listener on a OpenWRT platform. It's been ages since we had any wormhole connectivity here in Wisconsin (Wigate/KB9BYQ days). And back then it really wasn't implemented correctly in my opinion. As many know, a few of us here in Green Bay, Wisconsin have been experimenting with non-traditional alternatives to AX.25. More recently the 420 MHz 802.11 options. What I really am waiting for is someone to design some amplifiers for these things. We have been using 900 MHz 802.11 with a 5 MHz channel width for some point to multipoint links. In our mobile tests on 900 MHz, the throughput suffers with the multipath from being in motion, etc. So be aware of that, 56 k will quickly be come 10k or worse. At 5 watts on 900 MHz, we manage to pull off 5 mile non-line of site omni-to-omni links with strong signals. A configuration conducive to a Mesh Network. On 900 MHz noise is a problem though, which also results in reduced throughput. So I'd like to be doing 5 watts on 420 MHz. The RFM12BP looks like a way to pull of 19 to 24 kbps on 70cm cheap. Amplifiers for this should be much easier. Steve, KB9MWR