Bob Armstrong wrote:
http://www.avanthar.com:8080/nodes/ seems to not be working to list currently active HECnet nodes.
Assuming you have a VMS, RSX or RSTS system AND your node is a routing
node (and your local node database is up to date), you can do NCP SHOW ACTIVE NODES
to see the nodes that are adjacent to you. You can also do
Technically speaking, that will list active nodes, which isn't exactly the same as adjacent nodes.
In RSX (atleast), you can also do
NCP SHOW ADJACENT NODES
to show which nodes are adjacent.
And don't forget TOPS-20. :-)
NCP SHOW KNOWN NODES
to see the up/down (reachable or unreachable) status of every node.
Well, not exactly. For nodes not in your own area, it will show which the routing node is, but if the final destination is up or down is not discernible. You'll have to ask the routine node next, to get more information on the actual destination.
Unfortunately if your node is NOT a routing node then this won't tell you
anything useful. BUT, don't despair - in that case you can ask your
favorite routing node to tell you. On your machine you can say -
NCP TELL LEGATO SHOW KNOWN NODES
and this will actually send the command from your node to NML ("Network
Management Listener") on LEGATO to be executed. You'll see the nodes that
LEGATO thinks are currently up. This will work on any target node where the
owner has been kind enough to enable the default DECnet account, e.g. MIM,
and probably most others too.
And to nit pick a bit more. Atleast in RSX, this is not related to the default DECnet account. In fact, in RSX there is no such thing as a default DECnet account.
In RSX atleast, this is an attribute called "verification" that you control on the object. #19 (NIC$$$) in this case.
Johnny
Angela Kahealani wrote:
On Wed, 2008-08-20 08:16:57 Johnny Billquist wrote:
Hmm. Is this the same machine as is running the bridge?
Johnny
Yes, is that a problem?
Could very well be. The problem is that the bridge program cannot exactly feed the ethernet input on the same machine as it is running, nor hear data sent out on the ethernet port of the same machine. That is, unless the hardware will do this for you. Some hardware do, but most don't. So you don't see your own data, which makes it impossible for my bridge program to handle the machine it itself is running on.
Johnny
I think I separated the bridge and linuxDECnet dnetd onto separate NICs so they can see each other...
dnetinfo shows:
The next hop to the nearest area router is node 0.0
Node Cost Hops Next hop to node
1.10 4 1 if0 -> 1.266
1.500 kahea 0 0 lo -> 1.500 kahea
but I don't seem to see any neighbors, so maybe still not right.
That table looks so wrong that it's horrible. :-)
I don't even dare guessing exactly what is wrong at your end...
Johnny
Angela Kahealani wrote:
On Wed, 2008-08-20 08:16:57 Johnny Billquist wrote:
Angela Kahealani wrote:
On Wed, 2008-08-20 08:00:35 Johnny Billquist wrote:
Angela Kahealani wrote:
So, obviously my iptables ain't blocking DECnet,
so it's a mystery why I can only see:
pc:/etc# cat /proc/net/decnet_neigh
Addr Flags State Use Blksize Dev
1.500 --- 40 01 0001498 eth0
1.10 --- 40 01 0016434 lo
Aloha, Angela
Hmm. Is this the same machine as is running the bridge?
Johnny
Yes, is that a problem?
Could very well be. The problem is that the bridge program cannot exactly feed the ethernet input on the same machine as it is running, nor hear data sent out on the ethernet port of the same machine. That is, unless the hardware will do this for you. Some hardware do, but most don't. So you don't see your own data, which makes it impossible for my bridge program to handle the machine it itself is running on.
Johnny
I have a router on the LAN, so could it all be configured to use that to bounce packets right back?
I take it most internet routers aren't going to route UDP/700?
which is why the bridge program vs sending raw DECNET UCP/700?
I doubt that your router is DECnet aware, so how would you do it? Bounce back *all* ethernet packets you see? I don't think that's a good idea.
Also, it is very important that the source and destination MAC addresses are left untouched for DECnet to be happy. So that needs to be insured as well.
The last question confused me. What do you mean? Of course internet is routing UDP traffic, no matter what port is used.
DECnet itself isn't an IP protocol, which is why it isn't routed by an internet router. There is no UDP or TCP in DECnet. DECnet is something totally different. What multinet do is pack the DECnet packet inside an UDP/IP packet for transport to the other multinet machine, over the internet.
Johnny
gerry77 at mail.com wrote:
On Mon, 18 Aug 2008 16:28:20 -0400 (EDT), you wrote:
After a bit of communication with a list member off-list, it seems that my dynamic IP address scenario is going to throw a wrench into the works regarding getting on to HECNet. Would someone know of a dynamic-address friendly method?
What about http://decnet.ipv7.net/files/decnet-bridge_0.7-4.tar.gz ? :-P
See our source,
G. :-)
That's one option, definitely.
A few things should perhaps be pointed out. The config file is not compatible with my bridge program, so people who change need to be aware that they have to modify that.
Also, name lookups can take time, and meanwhile the bridge is stopped. If someone have a seriously bad setup dns, this could means hanging the bridge for half a minute per such host (or more). It also increases the possibilities of cracking. (If someone really is worried about that :-) .
But it do increase the usability if you have dynamic addressed, as well as making it a bit more convenient. :-)
Johnny
Bob Armstrong wrote:
Here s an updated node listing with some of the recent additions. If any
are missing or incorrect, let me know the details and I ll update the list.
http://www.sparetimegizmos.com/Downloads/DCN%20Node%20List.pdf
Can you add 3.34 ROOSTA (simh VAX/VMS 7.2) to that please ? I'll make
that my backup router (and possibly) multinet node.
Thanks,
Chrissie
On Wed, Aug 20, 2008 at 11:46 PM, Bob Armstrong <bob at jfcl.com> wrote:
I'm not sure if my IP address changes or not, but if you're willing we
can try setting it up and see if things work :)
Your IP address is between you and your ISP (and whatever other routers and networking hardware you have at your site). Multinet has to be configured to play correctly with all of that, but that's all up to you.
Have you tested your Multinet installation to be sure it's working ? I.e. can you ping google.com?
And have you configured your DECnet already? What did you use for a node name and address?
Bob
I have tested Multinet and can ping google. According to my roommate,
our IP hasn't changed in months; it may change when we move in a
couple weeks but it'll probably stay the same afterward.
I have not set up DECnet yet, since I figured there would be some
coordination necessary. My node name is/will be LOKI (that's already
the machine name) but I don't have an address yet.
John
--
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn
I'm not sure if my IP address changes or not, but if you're willing we
can try setting it up and see if things work :)
Your IP address is between you and your ISP (and whatever other routers and networking hardware you have at your site). Multinet has to be configured to play correctly with all of that, but that's all up to you.
Have you tested your Multinet installation to be sure it's working ? I.e. can you ping google.com?
And have you configured your DECnet already? What did you use for a node name and address?
Bob
On Wed, Aug 20, 2008 at 7:52 PM, Bob Armstrong <bob at jfcl.com> wrote:
John Floren [slawmaster at gmail.com] wrote:
I'd be interested in connecting my Alphastation with Multinet, if
possible. I've got cable internet and all my machines are behind a
router... pointers and directions would be appreciated!
We don't have a guide to doing this; perhaps if I talk you thru it you'll write one for us.
The first step is to download and install Multinet -
http://www.process.com/openvms/hobbyist.html
Bob
Multinet downloaded and installed, Captain!
I'm not sure if my IP address changes or not, but if you're willing we
can try setting it up and see if things work :)
John
--
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn
http://www.avanthar.com:8080/nodes/
seems to not be working to list currently active HECnet nodes.
Assuming you have a VMS, RSX or RSTS system AND your node is a routing
node (and your local node database is up to date), you can do
NCP SHOW ACTIVE NODES
to see the nodes that are adjacent to you. You can also do
NCP SHOW KNOWN NODES
to see the up/down (reachable or unreachable) status of every node.
Unfortunately if your node is NOT a routing node then this won't tell you
anything useful. BUT, don't despair - in that case you can ask your
favorite routing node to tell you. On your machine you can say -
NCP TELL LEGATO SHOW KNOWN NODES
and this will actually send the command from your node to NML ("Network
Management Listener") on LEGATO to be executed. You'll see the nodes that
LEGATO thinks are currently up. This will work on any target node where the
owner has been kind enough to enable the default DECnet account, e.g. MIM,
and probably most others too.
Bob
