On 28 Dec 2012, at 16:03, Johnny Billquist <bqt at softjar.se> wrote: I didn't ask what host you are running your simulator on, I asked what OS you are running the thing that talks DECnet. But I now suspect you are playing with VMS. Afraid I can't help much with that one. In theory there shouldn't be any problems, but exactly why are getting the errors I can only guess. And my first guess would be that the CSR is wrong. My second guess would be that something is broken in simh, or VMS, if I look at the error message, since it seems to complain about the MAC address. VMS should be fine with this, however, if it does some verification of the MAC address before trying to change it, then you might have a problem. (Naturally, no two interfaces should ever have the same default MAC address.) Actually they might due to the bridging. I'll go generate a random MAC and see if that helps any. Johnny On 2012-12-28 21:57, Cory Smelosky wrote: On 28 Dec 2012, at 15:56, Johnny Billquist <bqt at softjar.se> wrote: On 2012-12-28 21:00, Cory Smelosky wrote: Hello! %NCP-W-OPEFAI, Operation failure %SYSTEM-F-IVADDR, invalid media address %NCP-W-UNRCMP, Unrecognized component , Circuit Circuit = QNA-1 However: XQ, address=20001920-2000192F*, vector=250, MAC=AA:00:04:00:15:24, type=DELQA-T, poll=100, attached to em0 XQB, address=20001930-2000193F*, vector=2E0, MAC=AA:00:04:00:15:24, type=DELQA-T, poll=100, attached to tap0 QNA-0 comes up fine. Anything special I need to do? I NEED to be using two NICs and two circuits for this. It probably helps if you tell which OS, and what kind of DECnet you have configured. :-) FreeBSD. I'm trying to route DECnet packets coming on XQB to a Multinet tunnel established via XQA. It needs to route area 9. I /might/ have just found a workaround that's a little bit crazy. ;) Johnny -- Cory Smelosky http://gewt.net/ Personal stuff! http://gimme-sympathy.org/ My permanently-a-work-in-progress pet project. -- Cory Smelosky http://gewt.net/ Personal stuff! http://gimme-sympathy.org/ My permanently-a-work-in-progress pet project.