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promiscuous mode, was Re: [HECnet] Multinet Tunnel Connections to SG1::

by bqt＠softjar.se

On 2012-06-08 01:13, Dave McGuire wrote: On 06/07/2012 08:16 AM, Johnny Billquist wrote: Any program that needs access to raw ethernet packets needs to run as root. Promiscuous mode or not. Promiscuous mode itself has little to do with this. So if you want to run anything like a bridge or a router, you will need to run it as root. Promiscuous mode is basically just allowing you to share the same interface as the system is otherwise using, instead of having to dedicate a separate ethernet interface for this. Maybe you're just putting this another way, but promiscuous mode is correctly defined a bit differently than this. When an Ethernet controller is placed into promiscuous mode, its on-chip MAC address filters, which normally either select or ignore inbound packets based on their MAC address, are disabled. ALL packets are received by the hardware and passed to the Ethernet driver in the OS, rather than only the ones destined for that specific interface as defined by its MAC address. I'm reasonably certain that you know this but were just explaining it in a more abstract way...? Yes. Well, actually I wasn't describing it in a more abstract way, but in a way more in terms of why you need promiscuous mode instead of what it actually does on the interface. But reading it through now, I see that there was one implicit assumption in my text which I could have pointed out. If you need to share the device with the system, while using a different MAC address, you need to place the device in promiscuous mode. And such is the case if we talk DECnet, since DECnet requires that you use a specific MAC address which is not the same as the default MAC address of a device. And to make a correction to your text, when not in promiscuous mode, your ethernet controller will filter out packets that do not have your MAC address, and packets that don't have the multicast bit set (possibly you can also get it to filter more specific on multicast ethernet packets, but multicast is a separate story from unicast packets on ethernet controllers anyway). Johnny

13 years, 4 months

netowrk flapping....

by roll＠Stupi.SE

NCP> %%%%%%%%%%% OPCOM 8-JUN-2012 07:07:16.01 %%%%%%%%%%% Message from user DECNET on STUPI DECnet event 4.18, adjacency down

13 years, 4 months

Introducing myself... and my little network

by roll＠Stupi.SE

I will set it aside if I find it, and make sure to image it. Image all your TK50's with distribution stuff on drop Al K a copy. -P

13 years, 4 months

Multinet Tunnel Connections to SG1::

by roll＠Stupi.SE

On 06/07/2012 02:26 AM, Mark Benson wrote: It's a good idea, but I'm not sure it can be done. We need to change the MAC address on the interface...can that be done outside the kernel? This should be possible, OSI-IP requred this function to, but in addition to that you need to get the MAC-level multicast packets in both directions. -P

13 years, 4 months

Reaching SOL::, was Re: [HECnet] Multinet Tunnel Connections to SG1::

by roll＠Stupi.SE

On 06/07/2012 02:14 AM, Peter Lothberg wrote: Can you talk to sol:: I can't seem to get to it from my Linux desktop machine, no, but I can SET HOST to it from my Alpha running VMS. (which I'm reaching from the aforementioned Linux machine!) It seems that off-net DECnet routing isn't happening from the Linux machine..? What's up with this, does anyone know? Is it connetivity (routing), or the fact that the linux implementation only speaks VMSnet? Does the linux box talk to stupi:: -P

13 years, 4 months

lunchbox VAXen, was Re: [HECnet] Introducing myself... and my little network

by mcguire＠neurotica.com

On 06/08/2012 12:13 AM, Boyanich, Alastair wrote: @DaveMc: *Snip!* .. here we called the VS2000's "wine casks" or "goon vax" because cask wine is oft called "goon" over here. I like it! -----Original Message----- I think someone even wrote a driver for VMS to use disks on that controller. I have several of those machines; I really should look into that. Does anyone have any further information on, or actual copies of, those boot ROMs and/or the VMS device driver? Reinhard Heuberger I think? Might've been a controller out of a rainbow in an 11/23 http://www.pdp11gy.com/indexE.html No, the SCSI host adapter in question is actually integrated onto the MicroVAX-2000 and VAXstation-2000 main board. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

13 years, 4 months

lunchbox VAXen, was Re: [HECnet] Introducing myself... and my little network

by Alastair.Boyanich＠au.fujitsu.com

@DaveMc: *Snip!* .. here we called the VS2000's "wine casks" or "goon vax" because cask wine is oft called "goon" over here. -----Original Message----- I think someone even wrote a driver for VMS to use disks on that controller. I have several of those machines; I really should look into that. Does anyone have any further information on, or actual copies of, those boot ROMs and/or the VMS device driver? Reinhard Heuberger I think? Might've been a controller out of a rainbow in an 11/23 http://www.pdp11gy.com/indexE.html

13 years, 4 months

Introducing myself... and my little network

by gregg.drwho8＠gmail.com

On Thu, Jun 7, 2012 at 11:37 PM, Boyanich, Alastair <Alastair.Boyanich at au.fujitsu.com> wrote: @Sampsa: There was wordperfect on VMS? Wow. I used to use the shared version of it on SCO in the early 90's. I didn't know there was a VMS version. That'd be interesting to see. Al. -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Sampsa Laine Sent: Thursday, 7 June 2012 8:50 PM To: hecnet at Update.UU.SE Subject: Re: [HECnet] Introducing myself... and my little network Speaking of old software, does anybody happen to have WordPerfect for VMS lying around? Would love to play with that.. Sampsa On 7 Jun 2012, at 11:48, Jordi Guillaumes i Pons wrote: Al 07/06/12 12:11, En/na hvlems at zonnet.nl ha escrit: Jordi, You wrote that the NIC on the 4000-90 was broken. Did you try an external transceiver on the AUI connector (there's a switch on the back). An Alllied Telesys or DEC transceiver might solve the issue. The logic that drives the BNC connector is on a separate module IIRC. I didn't. Actually, I thought you needed a thickwire segment to use a transceiver and a drop cable. I should have researched it better. Any idea of the DEC name for that thinwire transceiver? (Or a compabtible one). Anyways, I think I canibalized that machine a little bit, so I'm not sure what is actually inside of the inclosure. It looks like a nice summer vacation project :) If you need software kits for the VAX, post your needs. If I have the kit(s) I'll burn them on a CD. Hans Oh, thanks. As I said, I've plenty of "modern" stuff, but I miss some of the older software I used back in those days (pre-5.0), a (call it nostalgia) I'm quite trying to reproduce that first environment I worked on. Right now, I miss: - FMS - TDMS - VAX BASIC - LSE That's pretty all. I also used AI1 (the dreaded office package) but I'm not sure I'll want to fight that monster again ;). No need to burn a CD, we could arrange the transfer by network (HECnet or regular internet). I understand the use of that stuff is covered by the hobbyist license (not sure about TDMS though), so we would not do anything out of the law. Hello! I'm not Sampsa, he's busy at the moment.... But yes there was indeed a version of WP for VMS. It was better supported for the VAX, then the one for SCO. As it happens I found out about it when I participated in a discussion with the fellow who sold it for SCO. Sadly the SCO one dropped out of site when that company started to crater. Strangely enough it happened well before the history of VMS started to get interesting. The VMS one was very popular at an agency I had, well an interest in. However the secretaries all typed poorly using it and worse for the PC release..... But yes it was there. ----- Gregg C Levine gregg.drwho8 at gmail.com "This signature fought the Time Wars, time and again."

13 years, 4 months

Introducing myself... and my little network

by mcguire＠neurotica.com

On 06/07/2012 11:41 PM, Boyanich, Alastair wrote: Dave: I have I have enough of a 4000-m60 laying around and could try it if there's support for Mariah in there. 4000-VLC also. Doesn't look like there was support for that stuff until at least 5.5, according to another list member's research. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

13 years, 4 months

Introducing myself... and my little network

by Alastair.Boyanich＠au.fujitsu.com

Dave: I have I have enough of a 4000-m60 laying around and could try it if there's support for Mariah in there. 4000-VLC also. -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Dave McGuire Sent: Thursday, 7 June 2012 9:15 PM To: hecnet at Update.UU.SE Subject: Re: [HECnet] Introducing myself... and my little network On 06/07/2012 07:10 AM, Jordi Guillaumes i Pons wrote: Will pre-5.0 VMS run on a 4000-90? I don't recall when NVAX CPU support was added to VMS. I don't think so. I've built a 4.7 system running in a 11-780 SIMH emulator :) I doubt 4.7 would run even in my 3300 (my oldest real machine). I was still running 4.7 on one machine (11/750) when I installed my first 3100. I'm pretty sure I installed 5.0 on the 3100 though. I was already running 5.0 on a pair of MicroVAX-3600s, and then 5.1 came out very shortly thereafter. BTW, 4.7 boots so fast under SIMH than at first I thought it had somehow crashed or hung. When I got the "username:" prompt after pressing return I was amazed :) Nice. :-) I bet 4.7 would absolutely scream on a 4000-90 if it had CPU support. The difference between 4.7 and 5.0 on a 2.8VUP MicroVAX-III is like night and day...I can only imagine it on a 4000-90, more than ten times faster! -Dave -- Dave McGuire, AK4HZ New Kensington, PA

13 years, 4 months

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