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hello nerd(s?) 4

hah it's just you and me in here i guess anyway i added my config snippet to the doco https://docs.google.com/document/d/1jB-yheBf5b0_NSjXJPaOiZ8WwdlgkCjUvM1iQy-c3VM/edit# let me know when you want to try linking up :D i'm in pacific time and evenings are best for me. i generally have my equipment powered down because of noise but all the configs are saved so it comes up quickly enough. -- ?strid smith (she/her) =<[ c y b e r ]>=

Started by ?strid smith @ · Most recent @

I finally have an operational router. 2

The 7204VXR is finally set-up, and I've configured my CPE to forward TCP port 1998 to it. When scanned it from another host on the LAN, it seems to be listening on that port, after I configured X.25 as Astrid documented. Please contact me directly for my static IP. -Meghan

Started by meghan137 @ · Most recent @

Joining the network 3

All, Trying to get my Cisco 2600 working. I put in some X.25 routing rules as: x25 routing x25 route 752 xot 24.22.130.236 (my Cisco does not understand x25 route ... dns) x25 route 242 xot 216.239.32.21 If I then do: x28 call 75241001 It sends packets but gets no response. I see in Packet capture: 14:51:24.542896 IP 104.58.86.73.11021 > 24.22.130.236.1998: Flags [S], seq 599537706, win 4128, options [mss 536], length 0 14:51:26.541877 IP 104.58.86.73.11021 > 24.22.130.236.1998: Flags [S], seq 599537706, win 4128, options [mss 536], length 0 DNS notes: Lab-Router(config)#x25 route (...)(...).. xot ? A.B.C.D Address of remote XOT host However reversing the logic gives me: Non-authoritative answer: 410.752.x25.org canonical name = 5fc5.ddns.net. Name: 5fc5.ddns.net Address: 24.22.130.236 So I assume I am right and its trying to connect, but per the notes this might be down. I will try to get a gateway external accessible once I have figured out how to make X.25 work in RSX11M.

Started by Dave Brown @ · Most recent @

JJ X25 network concept ver 1.0

So this is what I’m going to build initially for some testing on my part. Just in case anybody cares ? John

Started by john jones @

[VoIP] X.25 + C*NET 4

sorry if this topic feels offtopic for the c*net list, everyone. :) true fact: i started looking into x.25 because i was curious about temporary signalling connections and how they work on the Definity. i wondered whether it would be possible to bolt on a data network next to the existing c*net voice network to facilitate transparent isdn interworking. sort of like how the PSTN was slowly transitioned from vf-only to a dual vf/packet network with ss6 and later ss7. my thinking went: if things can be made to work that way, two c*net-connected pbxes, each with local pri's homing on router that splits/recombines all the datastreams properly, might could think they're speaking end-to-end isdn, not even noticing anything unusual! that would be neat. so i started gathering equipment and learning how it all fits together. got a bit sidetracked though, haven't yet gotten around to answering that first question one way or the other. it does seem that you can statically configure a set of Definity pbx's into a larger network in a non-isdn environment, using regular vf telephone trunks and sending the signalling traffic over X.25. haven't gotten that to work properly yet either but i'm pretty close. -- ?strid smith (she/her) =<[ c y b e r ]>= antique telephone collectors association member #4870

Started by ?strid smith @ · Most recent @

First x25 call attempt 5

So I have my side mostly set up. I believe Astrid's PAD is normally off-line but I'm not sure this is cause of this debug output 2611_1#debug x25 ? all Show all X.25 traffic (default) annexg X.25 over Frame-Relay (Annex-G) Events aodi Always On/Direct ISDN (PPP over X.25) events cmns Show only CMNS traffic events Show X.25 traffic without normal Data and RR packets interface Show X.25 or CMNS traffic on one interface only Show only X.25 traffic vc X.25 traffic across a specific virtual circuit xot Show only XOT (X.25-Over-TCP) traffic <cr> 2611_1#debug x25 all X.25 packet debugging is on 2611_1# 2611_1# 2611_1#pad 75241001 Trying 75241001... % Destination unreachable; gateway or host down 2611_1# *Mar 1 01:19:02.043: X.25 host name sent for DNS lookup is "410.752.x25.org" *Mar 1 01:19:02.079: DNS got X.25 host mapping for "410.752.x25.org" via network *Mar 1 01:19:02.079: XOT: access is not permitted for ip address 24.XXX.XXX.XX6 ? obscured by JJ 2611_1# I'll leave my side up so maybe someone can try calling 68711101 . I'm not completely done so don't spend much time !! John

Started by john jones @ · Most recent @

Linux and X.25 13

Hi, Does anyone have any experience with X.25 on Linux? I'm doing a lot of reading about X.25 on Linux, particularly X.25 via LAPB over Ethernet and X.25 over asynchronous serial. This is involving a lot of archeology and really old archives of things form the late '90s / early '00s. I wondering if / hoping I can establish an XOT connection with ?strid's Telebahn and then switch (term?) to multiple things local to my LAN. -- Grant. . . . unix || die

Started by Grant Taylor @ · Most recent @

Hello and is anything always on in the Telebahn 3

My first email on this, new to me group. I’m John, a retired network architect from Siemens Healthineers with a minor obsession in telephone switching system. Back in the early 1980’s, I was a technical instructor for a third party computer maintenance company (Sorbus) when we got a contract with GTE to perform installation and trouble resolution services for their Telenet X.25 network. Most of the work expected by our technician would include installing modems or 56K DSU’s at the GTE hub sites that contained the TP4000 X.25 backbone network switch, installing PAD’s at GTE customer locations, and being smart hands ( the term certainly didn’t exist back then !!! ) when repairs on the TP4000’s were required. Now Sorbus had zero experience in telecommunication or networking so the class I taught had to go from punching down wires on 66 blocks, to what a modem was and naturally, we wanted to provide an overview of what X.25 and what Telenet were. I went to McLean VA for I think 6 weeks to sit through two of their 2-week courses with 2 weeks of mostly one-on-one time with GTE’s inhouse instructors. I bought a book on X.25 before the visit to VA and was fascinated. The network bug bit me and bit me hard and I enjoyed decades working in networking. I don’t believe I ever used any X.25 network except for lab systems in those two classes in VA so I have zero practical or end-user experience but I’m confident I can get the networking part going pretty easily and figure out the rest while on the ride. I do have a question. Are there any devices that are always on on the x25.org network that I can make connections to? If so, please provide numbers. Thanks! John

Started by john jones @ · Most recent @

JJ 2611 config WAS: RE: [X.25] Cisco 2620 as PAD for a modem bank 6

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: [email protected] <[email protected]> On Behalf Of john jones via groups.io Sent: Saturday, July 2, 2022 9:40 AM To: [email protected] 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

Started by john jones @ · Most recent @

Silicon Graphics SX.25

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

Started by Wes Fisher @

Cisco 2620 as PAD for a modem bank 5

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 !

Started by David Kuder @ · Most recent @

Router list 6

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

Started by Fred @ · Most recent @

dns updated, also hello new people! 2

hi everyone! i added Hans Hübner's record for network 230! i didn't add Mantas Mikul?nas'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...] -- ?strid smith (she/her) =<[ c y b e r ]>=

Started by ?strid smith @ · Most recent @

TELEBAHN still there 14

Hi, laforge kindly referred me to this list as we chatted about my interest in X.25. To get started, I have set up a virtual Cisco router using dynamips and configured it for xot according to the Telebahn notes document. I also added myself there. I tried connecting to the systems that are listed there, but none of them responded to X.25 connection requests. None of the gateway TCP ports (1998) in the list responded either. Maybe I'm doing something wrong, but is any of you still interested in this? My longer-term plan is to get my VAX 4000-600 running VMS 5.5-2H4 and VAX P.S.I. connected to the network. Thanks, Hans