Hi folks, I'm doing a small presentation on TELEBAHN and other retronetwork things this Thursday, and if you have any gear that you could run between 16:00h and 20:00h UTC, that would be great. If you bring something up, please also let me know the NUA. Thanks! Hans

Does anyone have any recommendations about starter gear to start learning about X.25? Is there a particularly cheap model of Cisco that's available for XOT? What version of IOS is best?

Hello, Here is an ISO of SunLink x.25 8.0.2 http://iommu.com/sun/sunlink-x.25-8.0.2.iso I am wondering if others have SunLink or Solstace products to exchange. Regards, Kevin

Hello everyone, I'd like to connect my old Sparcstation 1 to Telebahn. I've got a Cisco 1841 with a WIC-2T, can I use a CAB-SS-530MT cable to connect the WIC-2T directly to the serial port on the Sparcstation? And then run Sunlink on the Sparc to connect to Telebahn? Btw my dad worked for Telenet back in the 80's and when I told him about this project, he said "why would anybody want to do that?" 😆

If anyone happens to have the Sangoma S503 x.25 drivers for DOS, please let me know! Regards, Phil

Hi folks, sorry for the late notice: This Saturday is another TELEBAHN Saturday, and I'll be carrying my X.25 gear to the Classic Computing Festival which takes place on the weekend in Dietzenbach. If you have the chance, I'd appreciate it if you could bring up some of your TELEBAHN gear so that visitors have a chance to feel the lag. :) As a reminder, my systems are: 23000100 cisco 23000200 VAX 4000/105A running VMS 5.5 23000300 SPARCstation IPC running SunOS 4.1.4 Cheers, Hans

Years ago, the MajorBBS (and later Worldgroup) supported x.25 with the PC XNet card from OST. Does anyone have any experience with this combination or an interest to see it revived? I’ve not found an example of the ISA card, but what I do have is the headers for the DOS device driver and the MajorBBS kernel with x.25 support. I’ve been working to implement the DOS device driver in a fork of DosBox-staging with the intention to implement a thread to accept XOT connections and translate them to relevant API call results. So far, I do have MajorBBS believing it has found the card, and trying to poll it for packets. Anyways, if this is interesting to anyone and/or if anyone has interest to hack on this too, let me know! —phil

Hi, just so you know: I'm switching off my TELEBAHN gear for three weeks while I am traveling abroad. Things will be back online in late August, probably on a schedule. Cheers, Hans

Hi Folks, Andrew (ajk) and myself have been thinking that it would be nice to have a recurring time where we bring our systems up and play around with some of the other X.25 nodes. Maybe some of you are interested in joining us? I would propose that we declare the last Saturday of a month to be "TELEBAHN Saturday" - My machines will be running all day, and Andrew said he'll run his around midday US Central time. I've set up my VAX so that you can create yourself an account and then use the SEND command to chat - Connect to 23000200 using xotpad or your node's native PAD and set yourself up for Saturday. Hope to meet some of you and some of your machines on Saturday! Hans

Hi folks, my SPARCstation IPX decided to give up the ghost today. I'll see if I can fix it, but for now, I only have the VAX (23000200) and the cisco (23000100) online. Cheers, Hans

Hi, I finally have my VAX and my Sun all wired and hooked up to Telebahn - They should be reachable at 230.002.00 and 230.003.00 respectively. I could connect from the outside using xotpad, but I have not yet been able to reach anything else through xot. Are any of your machines up at this point? Thanks, Hans

Added these entries to DNS because they were new in the Google doc: 471 - Mantas Mikulėnas - x25.nullroute.lt 737 - Andrew Kay - xot.trysteropac.net I also added a note to send a message to this list, because I keep looking there and seeing new entries! I wonder how many people have bounced off because activation was not quick ... :\ Cheers! -- æstrid smith (she/her) =<[ c y b e r ]>= antique telephone collectors association member #4870

I'm still waiting for my hardware to arrive, but in the meantime, I have set up my virtual Cisco C7206VXR so that it routes some incoming X.25 calls to emulated systems that I've set up. Using Andrew Kay's xotpad, it is now possible to connect to one of those hosts from your local machine using XOT (but the pad command on Ciscos certainly works as well). $ xotpad -g x25.netmbx.org 23000101 _____ _____ _______ _____ ________ __ ___ ___ | __ \ / ____|__ __/ ____| / / ____| /_ |/ _ \ / _ \ | |__) | (___ | | | (___ / /| |__ | | | | | | | | | _ / \___ \ | | \___ \ / / | __| | | | | | | | | | | \ \ ____) | | | ____) / / | |____ | | |_| | |_| | |_| \_\_____/ |_| |_____/_/ |______| |_|\___(_)___/ Running on an emulated PDP-11/73 Please use PPN 2,1 to log in as guest! RSTS V10.0-L 18-Apr-23 05:40 AM User: I've tried connecting to the same host from Manta's router, but there seems to be some dramatic packet loss somewhere so it does not work well. Something to debug. Cheers, Hans

hi everyone! i added Hans Hübner's record for network 230! i didn't add Mantas Mikulėnas's record for network 147 because it starts with a 1. pick a different number maybe? also sorry about not responding on the list to the earlier discussions, i'm currently moving house and it's taking up almost all my time. my net 752 will be offline for quite a while, months at least. i look forward to having a home lab again someday. for now, i'll be using the shadytel tdm lab (network 801), whenever i manage to have time to setup/unfuck its X.25 situation. :) [it's v6 only at the moment, which is awkward because cisco IOS XOT doesn't do v6 at all, hahaha...] -- æstrid smith (she/her) =<[ c y b e r ]>=

Hi all, Other than a Cisco 2800 series router, is there a list of routers (software dependent of course) that would make good candidates for usage on telebahn? I have a line on some 1841's (free for pickup) and wanted to be sure these could be used before making the trip (not far, but also not close either with current fuel prices). Thanks Fred

So, like the other Dave, I've run into some unfortunate side effects of using a Cisco 26xx router. I'm running IOS c2600-ipvoice-mz 12.3(9) so thankfully I've got support for the x25 route (...)(...).. xot dns \2.\1.x25.org line in the config and my router is able to lookup other hosts. I did have to configure the access-list to allow all IPs, otherwise it was rejecting all XOT traffic incoming and outgoing. I have managed to set up a config where analog calls to WIC-2AM modems get presented a hidden menu that resembles the prompt you would get when connecting to TELENET/DATAPAC/TYMNET. This allows you to connect to a short list of up to 17 predefined hosts (18 menu entries max, including the exit command). Where I've hit a stumbling block is having a way to map incoming x25 calls to give remote access to my analog modems. It would appear that "interface Async<x>" doesn't support "encapsulation x25" on the c2620 which as I understand would be needed for it to work how I want. For now I guess I can use the cisco for outbound calls to a limited subset of TELEBAHN hosts. I'll have to figure out how to get inbound x25 calls routed to a modem bank hanging off another box eventually. I'm sure someone has a better idea for this, and I'll probably replace the hidden menu on the c2620 with routing through something running on a linux box eventually. -DK relevant lines for the dial-in menu: ! modemcap entry AUTOANSWER:MSC=S0=1:TPL=default modemcap entry NOANSWER:MSC=S0=0:TPL=default ! alias exec tpcbbs pad 78398001 ! menu tpcnet prompt '@' menu tpcnet command 783980 tpcbbs menu tpcnet command tpcbbs tpcbbs menu tpcnet command exit exit menu tpcnet default exit menu tpcnet line-mode menu tpcnet single-space ! banner motd ' TPCNET 783 235 0$(line)A ' ! line con 0 no motd-banner ! line 1 4 exec-timeout 0 0 x25 subaddress line vacant-message '' modem Dialin modem autoconfigure type AUTOANSWER autocommand menu tpcnet no activation-character length 0 transport output pad telnet autoselect timeout 1 autohangup stopbits 1 speed 115200 flowcontrol hardware !

Howdy y'all: I was browsing some SGI documentation, and I was flabbergasted to see SGI had an X.25 product. I may be a bit biased because I'm an SGI fanboy, but I really like their documentation. It's a little easier to digest and get things going. I think I'm going to try and source a dremel so I can get this motherboard out of my Challenge S and make that an X.25 node! :D http://www.irix7.com/techpubs/007-2179-003.pdf - SGI SX.25 Administration Guide

X252611#sho ver Cisco Internetwork Operating System Software IOS (tm) C2600 Software (C2600-IS-M), Version 12.2(8)T5, RELEASE SOFTWARE (fc1) TAC Support: http://www.cisco.com/tac Copyright (c) 1986-2002 by cisco Systems, Inc. Compiled Fri 21-Jun-02 13:48 by ccai Image text-base: 0x80008074, data-base: 0x8140878C ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1) X252611 uptime is 18 hours, 16 minutes System returned to ROM by power-on System restarted at 16:20:22 DST Fri Jul 1 2022 System image file is "flash:c2600-is-mz.122-8.t5.bin" cisco 2611 (MPC860) processor (revision 0x203) with 59392K/6144K bytes of memory. Processor board ID JAD05030CPT (694590607) M860 processor: part number 0, mask 49 Bridging software. X.25 software, Version 3.0.0. 2 Ethernet/IEEE 802.3 interface(s) 1 Serial network interface(s) 16 terminal line(s) 32K bytes of non-volatile configuration memory. 16384K bytes of processor board System flash (Read/Write) Configuration register is 0x2102 X252611#sho run Building configuration... Current configuration : 2621 bytes ! ! Last configuration change at 01:10:49 DST Sat Jul 2 2022 by cisco ! NVRAM config last updated at 18:00:29 DST Fri Jul 1 2022 by cisco ! version 12.2 service pad to-xot service pad from-xot service tcp-keepalives-in service tcp-keepalives-out service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname X252611 ! logging buffered 100000 debugging username x25 privilege 2 password 7 11114B50 memory-size iomem 10 clock timezone EST -5 clock summer-time DST recurring ip subnet-zero ip cef ! ! ip host 111.687.x25.org 1.1.1.1 ip host X252611 1.1.1.1 ip name-server 8.8.8.8 ! ! x25 profile TELEBAHN dxe x25 version 1988 x25 modulo 128 x25 address 687111 x25 win 10 x25 wout 10 x25 ips 1024 x25 ops 1024 x25 routing ! xot access-group 10 profile TELEBAHN ! ! ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface Ethernet0/0 ip address 192.168.0.100 255.255.255.0 full-duplex no cdp enable ! interface Serial0/0 no ip address encapsulation x25 x25 address 2611 no cdp enable ! ip classless ip route 0.0.0.0 0.0.0.0 192.168.0.1 no ip http server ! access-list 10 permit any ! x25 route (...)(...).. xot dns \2.\1.x25.org x25 host X252611 687111 ! ! banner login ^CC Welcome to JJ's X.25 Host on the TeleBahn X25 network. You can login with user x25 password x25 Sorry there isn't anything more interesting than a Cisco router to log in to. Once you log in, you will auto-connect to the Cisco X28 PAD ^C privilege configure level 14 enable privilege exec level 14 configure ! line con 0 line 33 no exec transport input all line 34 38 line 39 session-timeout 5 exec-timeout 60 0 absolute-timeout 30 session-disconnect-warning 180 message Inactivity Warning ! Disconnect to 2 minutes x25 subaddress 89 login local autocommand x28 line 40 session-timeout 360 session-disconnect-warning 240 message WARNING. Your Session will terminate in 2 minutes rotary 99 no exec transport input all line 41 48 line aux 0 modem InOut autocommand x28 no exec line vty 0 4 exec-timeout 240 0 login local transport input pad v120 telnet rlogin udptn ! ntp clock-period 17180322 ntp server 185.216.231.84 ! end From: x25@groups.io <x25@groups.io> On Behalf Of john jones via groups.io Sent: Saturday, July 2, 2022 9:40 AM To: x25@groups.io Subject: Re: [X.25] Cisco 2620 as PAD for a modem bank Use the rotary command on the async port that will be your destination. I.E. rotary 99. This represents the last two positions in your 8 digit X25 address. Then use ip host and/or x25 host commands to express the first 6 digits. I can post an example later on. John On Saturday, July 2, 2022, 1:51 AM, David Kuder <dkgrizzly@...> wrote: So, like the other Dave, I've run into some unfortunate side effects of using a Cisco 26xx router. I'm running IOS c2600-ipvoice-mz 12.3(9) so thankfully I've got support for the x25 route (...)(...).. xot dns \2.\1.x25.org line in the config and my router is able to lookup other hosts. I did have to configure the access-list to allow all I