[HECnet] SIMH + Multiple interfaces + DECnet

[Johnny Billquist]

On 2012-12-28 22:04, Cory Smelosky wrote:

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.

VMS don't know about bridging, so from VMS view of the world, no two interfaces should ever have the same default address.
Note that VMS will change the address as a part of the initialization, and of course you will have the same address on the two interfaces after that.
The problem is that simh might not properly handle a changed MAC address on an interface, which is why you are recommended to set it to the "right" value already before booting VMS.

Anyway, I'm really making lots of guesses here right now, so don't take what I write as any absolute truths. Good luck.

	Johnny



	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.