I am not an expert on the DMR network, but I think it works with a "master" server that everyone connects his repeater to. We are running the BrandMeister master server. It is not the MARC network, it is an open network. (a 3rd network exists, it is called DMR+ ) Our new master server (currently being setup) is dual-homed, it has both an AMPR and a normal IP address. However that does not really matter as our AMPR addresses are BGP routed on internet as well. you can read it herehttp://communications.support/threads/4798-IP-link-Quantar-V-24-systems-using-Cisco-routers Ok, it apparently has a serial port and the Cisco routers are used to tunnel that over IP. Nice when you already have them, if not I would go for a Raspberry Pi and a USB Serial cable. Much cheaper, much more power efficient. A 2600 or 2800 can do more useful things than working as a serial server, but of course it can do this and routing in parallel. The DMR and D-Star repeaters have an ethernet connection so they are easier to integrate with the network. We also have some Yaesu System Fusion repeaters (they are cheap), but this is crap. No network interface. They require a separate box to interface to the outside world. This still has no network interface, it has USB. Then you need a computer with USB and network to connect it. But this computer has to run Windows :-( Not good for a repeater site... And the whole thing is far, far from finished. Updates to implement even basic functionality are being promised and then being postponed all the time. I think it will not be usable before some amateurs roll up their sleeves and re-do the entire software, much like DMR+ and BrandMeister. Please understand that (also written by Brian in the meantime) that your router will never be able to perform this task standalone, you will need to have a second computer that is reconfiguring the router all the time, for every change in IP address of a gateway or other change in the gateway list you will need to make a config change. A good script can do that automatically, but you will need something like a Raspberry Pi to run it on. And the Raspberry Pi can do a better job itself, because it can track the AMPR RIP packets and does not need to download the encap file all the time. Reliability will not be a problem (unless you have a bad SD card or bad powersupply). The only thing to worry about is if you can sysop the system on the long run. I.e. install updates sometimes, configure firewall rules as needed, etc. This will require some study but it is part of the fun, I think. Yes I am the same person, see mail address. I was not active with JNOS but I maintained a version of KA9Q NET that was used on many hybrid IP / NET/ROM nodes and BBS systems. I still run that program on the hosted Raspberry Pi that is also my gateway. Rob