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Re: TELEBAHN still there

 

Am Fr., 7. Apr. 2023 um 07:36?Uhr schrieb Mantas Mikul?nas <grawity@...>:
I finally decided to add mine, just a pile of old Cisco routers to poke around (though at the moment I'm not sure if the telebahn x.25 profile is set up right, as so far I've been only playing with serial links between identical systems)

Thank you for setting that up!? I could successfully connect to?14704100 after I had tweaked my configuration.? ?Would you be willing to share your configuration?? I could not quite figure out how to enable inbound X.29 connections to the router itself.


Re: TELEBAHN still there

 

Thanks for getting back, folks. I'll be poking around again tomorrow,? would be nice to get a connection up from my virtual Cisco 7200. Getting the VAX online will take a little longer.

Cheers,?
Hans


Re: TELEBAHN still there

 

Hello Hans,

I've had my X.25 router at th1cc.net shut down for a while, but I'll probably have time to put it back on the net this weekend.

Meghan


------- Original Message -------
On Wednesday, April 5th, 2023 at 11:27 PM, hans.huebner@... <hans.huebner@...> wrote:

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 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


Re: TELEBAHN still there

 

I finally decided to add mine, just a pile of old Cisco routers to poke around (though at the moment I'm not sure if the telebahn x.25 profile is set up right, as so far I've been only playing with serial links between identical systems).


On Fri, Apr 7, 2023 at 6:26?AM <hans.huebner@...> wrote:
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 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



--
Mantas Mikul?nas


Re: TELEBAHN still there

john jones
 

开云体育

Hi Hans,

?

My system is listed but I no longer have the node turned on.

?

I guess there just isn’t quite the critical mass yet.

?

John

?

From: [email protected] <[email protected]> On Behalf Of hans.huebner@...
Sent: Thursday, April 6, 2023 2:28 AM
To: [email protected]
Subject: [X.25] TELEBAHN still there

?

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 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


TELEBAHN still there

 

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 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


Re: Router list

 

line vty 6
rotary 66
autocommand telnet <hostname or ip address>
no exec
transport input pad
I've found out that the line-processing on the router can make things difficult, to say the least.? I've been experimenting with the options to avoid the router line buffering which can cause problems with some types of remote hosts, such as BBSes that expect single-character commands.? At VCFSE last month, I had opportunities to use my 2620 as a dial-up modem bank with various client devices and found all sorts of issues when using it to telnet out to Telehack (control keys are buffered until <CR> so pong, 2048, and other games aren't playable), TheOldNet & RetroCampus have single-character menus, and my own BBS had issues with line editing being performed by the router.? raw mostly works, but can have other issues talking to hosts expecting an unbuffered telnet session.? I've since moved to having the router make raw tcp connections to a linux host that can provide both the TELENET style connection prompt, manage known host aliases, and provide host specific connection commands.? I'll try to clean up what I've got and publish something in the days ahead.

I've got my endpoint offline at the moment while I rebuild my rack (I'm hoping next year to just haul my half-rack to our VCF show, and not spend as much time carrying & connecting gear)

-DK


Re: Router list

 

On 7/26/22 1:35 PM, Fred wrote:
In this particular case it is probably worth the drive, as it's going to be more than one router given to me and it will only cost some Donato's pizza.? Depending on what WICS are included or I can find on fleabay I can probably also extend it to other purposes as well (integrate it in my telephone side of the house, etc)
Nice!

Can I ask for details and / or pictures when convenient?

You know, computer / router / network pr0n and living vicariously through others. }:-)



--
Grant. . . .
unix || die


Re: Router list

 

Thanks all - that helps.

In this particular case it is probably worth the drive, as it's going to be more than one router given to me and it will only cost some Donato's pizza.? Depending on what WICS are included or I can find on fleabay I can probably also extend it to other purposes as well (integrate it in my telephone side of the house, etc)

Fred


Re: Router list

 

What I've been doing in lieu of getting more async lines is creating
virtual lines with autocommand telnet. Like this:

line vty 6
rotary 66
autocommand telnet <hostname or ip address>
no exec
transport input pad

There is a little bit of lag, and it is sort of cheating, but it works.

I'm currently working on segmenting my network, once I'm done I should
have some x.25 services up semi-permanently

On Mon, Jul 25, 2022 at 2:12 PM john jones via groups.io
<jjones3601@...> wrote:

Hi Fred.



As usual, it depends on what you want to do.



The Cisco 1841 has separate AUX and CONSOLE ports so you can have a single X.25 “host” at your end. It also has 2 WIC slots so you can probably put a analog modem cards or low density async card in there.



I’m not 100% sure about this but I think almost every Cisco router I’ve looked at will support X.25 although the specific image sometimes matters.



I’d guess that you have a greater than 90% chance of it working out of the box (assuming the router is good).



If you want a higher density of serial hosts, you’d probably want something that has a NM (network module) slot so you could plug in an NM-16A or NM-32A.



John



From: [email protected] <[email protected]> On Behalf Of Fred
Sent: Monday, July 25, 2022 1:53 PM
To: [email protected]
Subject: [X.25] Router list



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


Re: Router list

john jones
 

开云体育

Hi Fred.

?

As usual, it depends on what you want to do.

?

The Cisco 1841 has separate AUX and CONSOLE ports so you can have a single X.25 “host” at your end.? It also has 2 WIC slots so you can probably put a analog modem cards or low density async card in there.

?

I’m not 100% sure about this but I think almost every Cisco router I’ve looked at will support X.25 although the specific image sometimes matters.

?

I’d guess that you have a greater than 90% chance of it working out of the box (assuming the router is good).

?

If you want a higher density of serial hosts, you’d probably want something that has a NM (network module) slot so you could plug in an NM-16A or NM-32A.

?

John

?

From: [email protected] <[email protected]> On Behalf Of Fred
Sent: Monday, July 25, 2022 1:53 PM
To: [email protected]
Subject: [X.25] Router list

?

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


Router list

 

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


Re: Cisco 2620 as PAD for a modem bank

john jones
 

开云体育

Thanks David !

?

John

?

From: [email protected] <[email protected]> On Behalf Of David Kuder
Sent: Sunday, July 3, 2022 2:22 AM
To: [email protected]
Subject: Re: [X.25] Cisco 2620 as PAD for a modem bank

?

This is what it has currently grown to. The menu 'tpcnet' is what is presented to dial-up modem clients, so there is no menu text, just an @ prompt, as you would get from the likes of TELENET/DATAPAC/TYMNET services back when those were operating still. You had to know the host address you were connecting to, or its mnemonic for well known services. One difference is due to the limited nature of the cisco menus, I've left out the "C " at the beginning. Maybe I'll make an actual shell at some point and offload the menu system to a linux box.
I also added two other x25 routes to handle single digit subaddresses, as well as a default subaddress of 99 since that seems to be the de-facto rotary everyone is using as their main entry point.

I do have a rotary working now to the modems.
78323589 -> modem pool, currently the PBX is offline, so no dialtone. with the PBX online (and all the cables plugged in) you would be able to dial numbers in the 980-xxxx exchange and connect to other modems hanging off the PBX.

The full config minus sensitive bits and voip stuff (my C2620 is really a VG200 that has had the boot rom swapped out to unlock its full capabilities):

!

version 12.3

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 x25-vhsvr-com

!

boot-start-marker

boot-end-marker

!

logging buffered 100000 debugging

! enable secret ...

! enable password ...

!

username x25 password 0 x25

username x25 autocommand menu x25in

memory-size iomem 10

clock timezone Eastern -4

!

no aaa new-model

ip subnet-zero

ip cef

!

!

! ip domain name vhsvr.com

! ip host tpcbbs ...

! ip name-server ...

no ftp-server write-enable

!

modemcap entry AUTOANSWER:MSC=S0=1:TPL=default

modemcap entry NOANSWER:MSC=S0=0:TPL=default

!

x25 profile TELEBAHN dxe

?x25 version 1988

?x25 modulo 128

?x25 address 783235

?x25 win 4

?x25 wout 4

?x25 ips 1024

?x25 ops 1024

?x25 facility windowsize 10 10

?x25 facility packetsize 1024 1024

?x25 subscribe packetsize permit 32 1024 target 512 1024

?x25 subscribe windowsize permit 1 16 target 2 10

x25 routing

!

!

xot access-group 10 profile TELEBAHN

!

!

interface FastEthernet0/0

?ip address 192.168.1.2 255.255.255.0

?duplex auto

?speed auto

?no keepalive

?no mop enabled

!

!

ip classless

ip route 0.0.0.0 0.0.0.0 192.168.1.1

no ip http server

!

access-list 10 permit any

!

menu offline title '

Sorry. That host is currently offline.'

menu offline prompt 'Press RETURN to continue.'

menu offline command q menu-exit

menu offline default q

menu offline single-space

!

menu tpcnet prompt '@'

menu tpcnet command 783227 tpcbbs

menu tpcnet command tpcbbs tpcbbs

menu tpcnet command 687111 jjspad

menu tpcnet command jj jjspad

menu tpcnet command exit exit

menu tpcnet command 78323594 multiz

menu tpcnet command multiz multiz

menu tpcnet default exit

menu tpcnet line-mode

menu tpcnet single-space

!

menu x25in title '

?

?

***

?

? ? ? Welcome to The Phone Company X.25 Gateway

?

? ? ? ? ? Type a number to select an option.

? ? ? ? ? ? ? ?Type Q to disconnect.

?

'

menu x25in prompt '>'

menu x25in text 1 The Phone Company BBS

menu x25in command 1 tpcbbs

menu x25in text 2 Star Wars

menu x25in command 2 starwars

menu x25in text 3 telehack.com

menu x25in command 3 telehack

menu x25in text 4 Multiplayer Zork

menu x25in command 4 multiz

menu x25in text 8 JJ's X.25 Host

menu x25in command 8 jjspad

menu x25in text 9 TPC Official Time

menu x25in command 9 sho clock

menu x25in command Q exit

menu x25in default Q

menu x25in single-space

!

x25 route (...)(...).. xot dns \2.\1.x25.org

x25 route (...)(...). xot dns \2.\1.x25.org

x25 route (...)(...) substitute-dest \1\299 xot dns \2.\1.x25.org

x25 host x25-vhsvr-com 783235

!

!

banner login '

You can login with username/password x25'

banner motd '

?

TPCNET

783 0$(line)A

'

alias exec jjspad pad 687111

alias exec tpcbbs menu offline

alias exec starwars telnet towel.blinkenlights.nl /quiet

alias exec telehack telnet telehack.com /quiet

alias exec multiz telnet tpcbbs 12000 /quiet

!

line con 0

?no motd-banner

?x25 subaddress 0

?length 0

?flowcontrol software

line 1 4

?exec-timeout 0 0

?x25 subaddress line

?vacant-message ''

?modem InOut

?modem autoconfigure type AUTOANSWER

?rotary 89

?autocommand? menu tpcnet

?no activation-character

?length 0

?transport input pad telnet

?transport output pad telnet

?autoselect timeout 1

?autohangup

?stopbits 1

?speed 115200

?flowcontrol hardware

line aux 0

line vty 0 4

?x25 subaddress line

?login local

?transport input telnet

?transport output all

!
! global parameters for all PAD connected lines

line vty 5 63

?exec-timeout 0 0

?vacant-message ''

?no login

?no activation-character

?transport input pad

?autohangup
!
! rotary group specific parameters follow

line vty 5 7

?no motd-banner

?rotary 90

?autocommand? show clock

line vty 8 31

?rotary 99

?login local

?autocommand? menu offline
! The x25 user profile overrides this line with menu x25in, I'm setting this so?all other users will get booted with host offline message if there isn't an override specified for them too.

!
! The rest of the incoming rotary groups are unauthenticated and bounce directly to other hosts

line vty 32 39

?rotary 91

?autocommand? tpcbbs

line vty 40 48

?rotary 92

?autocommand? starwars

line vty 49 55

?rotary 93

?autocommand? telehack

line vty 56 63

?rotary 94

?autocommand? multiz

!

!

end

?


Re: Cisco 2620 as PAD for a modem bank

 

This is what it has currently grown to. The menu 'tpcnet' is what is presented to dial-up modem clients, so there is no menu text, just an @ prompt, as you would get from the likes of TELENET/DATAPAC/TYMNET services back when those were operating still. You had to know the host address you were connecting to, or its mnemonic for well known services. One difference is due to the limited nature of the cisco menus, I've left out the "C " at the beginning. Maybe I'll make an actual shell at some point and offload the menu system to a linux box.
I also added two other x25 routes to handle single digit subaddresses, as well as a default subaddress of 99 since that seems to be the de-facto rotary everyone is using as their main entry point.

I do have a rotary working now to the modems.
78323589 -> modem pool, currently the PBX is offline, so no dialtone. with the PBX online (and all the cables plugged in) you would be able to dial numbers in the 980-xxxx exchange and connect to other modems hanging off the PBX.

The full config minus sensitive bits and voip stuff (my C2620 is really a VG200 that has had the boot rom swapped out to unlock its full capabilities):

!
version 12.3
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 x25-vhsvr-com
!
boot-start-marker
boot-end-marker
!
logging buffered 100000 debugging
! enable secret ...
! enable password ...
!
username x25 password 0 x25
username x25 autocommand menu x25in
memory-size iomem 10
clock timezone Eastern -4
!
no aaa new-model
ip subnet-zero
ip cef
!
!
! ip domain name vhsvr.com
! ip host tpcbbs ...
! ip name-server ...
no ftp-server write-enable
!
modemcap entry AUTOANSWER:MSC=S0=1:TPL=default
modemcap entry NOANSWER:MSC=S0=0:TPL=default
!
x25 profile TELEBAHN dxe
?x25 version 1988
?x25 modulo 128
?x25 address 783235
?x25 win 4
?x25 wout 4
?x25 ips 1024
?x25 ops 1024
?x25 facility windowsize 10 10
?x25 facility packetsize 1024 1024
?x25 subscribe packetsize permit 32 1024 target 512 1024
?x25 subscribe windowsize permit 1 16 target 2 10
x25 routing
!
!
xot access-group 10 profile TELEBAHN
!
!
interface FastEthernet0/0
?ip address 192.168.1.2 255.255.255.0
?duplex auto
?speed auto
?no keepalive
?no mop enabled
!
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.1.1
no ip http server
!
access-list 10 permit any
!
menu offline title '
Sorry. That host is currently offline.'
menu offline prompt 'Press RETURN to continue.'
menu offline command q menu-exit
menu offline default q
menu offline single-space
!
menu tpcnet prompt '@'
menu tpcnet command 783227 tpcbbs
menu tpcnet command tpcbbs tpcbbs
menu tpcnet command 687111 jjspad
menu tpcnet command jj jjspad
menu tpcnet command exit exit
menu tpcnet command 78323594 multiz
menu tpcnet command multiz multiz
menu tpcnet default exit
menu tpcnet line-mode
menu tpcnet single-space
!
menu x25in title '
?
?
***
?
? ? ? Welcome to The Phone Company X.25 Gateway
?
? ? ? ? ? Type a number to select an option.
? ? ? ? ? ? ? ?Type Q to disconnect.
?
'
menu x25in prompt '>'
menu x25in text 1 The Phone Company BBS
menu x25in command 1 tpcbbs
menu x25in text 2 Star Wars
menu x25in command 2 starwars
menu x25in text 3 telehack.com
menu x25in command 3 telehack
menu x25in text 4 Multiplayer Zork
menu x25in command 4 multiz
menu x25in text 8 JJ's X.25 Host
menu x25in command 8 jjspad
menu x25in text 9 TPC Official Time
menu x25in command 9 sho clock
menu x25in command Q exit
menu x25in default Q
menu x25in single-space
!
x25 route (...)(...).. xot dns \2.\1.x25.org
x25 route (...)(...). xot dns \2.\1.x25.org
x25 route (...)(...) substitute-dest \1\299 xot dns \2.\1.x25.org
x25 host x25-vhsvr-com 783235
!
!
banner login '
You can login with username/password x25'
banner motd '
?
TPCNET
783 0$(line)A
'
alias exec jjspad pad 687111
alias exec tpcbbs menu offline
alias exec starwars telnet towel.blinkenlights.nl /quiet
alias exec telehack telnet telehack.com /quiet
alias exec multiz telnet tpcbbs 12000 /quiet
!
line con 0
?no motd-banner
?x25 subaddress 0
?length 0
?flowcontrol software
line 1 4
?exec-timeout 0 0
?x25 subaddress line
?vacant-message ''
?modem InOut
?modem autoconfigure type AUTOANSWER
?rotary 89
?autocommand? menu tpcnet
?no activation-character
?length 0
?transport input pad telnet
?transport output pad telnet
?autoselect timeout 1
?autohangup
?stopbits 1
?speed 115200
?flowcontrol hardware
line aux 0
line vty 0 4
?x25 subaddress line
?login local
?transport input telnet
?transport output all
!
! global parameters for all PAD connected lines
line vty 5 63
?exec-timeout 0 0
?vacant-message ''
?no login
?no activation-character
?transport input pad
?autohangup
!
! rotary group specific parameters follow
line vty 5 7
?no motd-banner
?rotary 90
?autocommand? show clock
line vty 8 31
?rotary 99
?login local
?autocommand? menu offline
! The x25 user profile overrides this line with menu x25in, I'm setting this so?all other users will get booted with host offline message if there isn't an override specified for them too.
!
! The rest of the incoming rotary groups are unauthenticated and bounce directly to other hosts
line vty 32 39
?rotary 91
?autocommand? tpcbbs
line vty 40 48
?rotary 92
?autocommand? starwars
line vty 49 55
?rotary 93
?autocommand? telehack
line vty 56 63
?rotary 94
?autocommand? multiz
!
!
end



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

- SGI SX.25
Administration Guide


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

john jones
 

开云体育

Sometimes, it is necessary to issue the command

?

clear line XXX

?

to get it back to order.

?

I added some session timeouts to address this.

?

John

?

From: [email protected] <[email protected]> On Behalf Of David Kuder
Sent: Saturday, July 2, 2022 8:59 PM
To: [email protected]
Subject: Re: JJ 2611 config WAS: RE: [X.25] Cisco 2620 as PAD for a modem bank

?

I was still able to connect just now without changing anything else on my side.
The secret sauce I found for bouncing connections to other hosts based on incoming connections is this:

!

line vty 60 63

?exec-timeout 0 0

?vacant-message ''

?no login

?rotary 91

?autocommand telnet actual.host.name port /quiet

?no activation-character

?transport input pad

?autohangup

!

rotary is the subaddress for that pool of lines.

no activation-character says don't wait for the user to send any characters before sending out the motd / login / running commands
vacant-message '' gets rid of any "press a key to activate this console" type messages

you can put other commands in autocommand instead of telnet, just be careful that whatever command you run doesn't dump out to a shell when done.
(menus using menu-exit will return to a shell instead of disconnecting. use exit to disconnect)

I've got show clock running on 78323590 which dumps the current date/time as synced from pool.ntp.org and then disconnects.
if you're using both direct mapping and menus, you may want to use alias exec to define the commands so you can easily change them one place for both.


!
! alias exec tpcbbs telnet tpcbbs.local /quiet
alias exec tpcbbs menu offline
alias exec starwars telnet towel.blinkenlights.nl /quiet

alias exec telehack telnet telehack.com /quiet

!

menu offline title '

Sorry. That host is currently offline.'

menu offline prompt 'Press RETURN to continue.'

menu offline command q menu-exit

menu offline default q

menu offline single-space

!

Now that I've sort of figured that much out, I can't seem to get the async lines to respond to telnet anymore, which I had working yesterday. They connect, but I never get anything back from the modems, and then the connection times out.
If I manage to get that working again, I can split the modem pool in half and call it a success.


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

 

I was still able to connect just now without changing anything else on my side.
The secret sauce I found for bouncing connections to other hosts based on incoming connections is this:

!
line vty 60 63
?exec-timeout 0 0
?vacant-message ''
?no login
?rotary 91
?autocommand telnet actual.host.name port /quiet
?no activation-character
?transport input pad
?autohangup
!

rotary is the subaddress for that pool of lines.
no activation-character says don't wait for the user to send any characters before sending out the motd / login / running commands
vacant-message '' gets rid of any "press a key to activate this console" type messages
you can put other commands in autocommand instead of telnet, just be careful that whatever command you run doesn't dump out to a shell when done.
(menus using menu-exit will return to a shell instead of disconnecting. use exit to disconnect)
I've got show clock running on 78323590 which dumps the current date/time as synced from pool.ntp.org and then disconnects.
if you're using both direct mapping and menus, you may want to use alias exec to define the commands so you can easily change them one place for both.

!
! alias exec tpcbbs telnet tpcbbs.local /quiet
alias exec tpcbbs menu offline
alias exec starwars telnet towel.blinkenlights.nl /quiet
alias exec telehack telnet telehack.com /quiet
!
menu offline title '
Sorry. That host is currently offline.'
menu offline prompt 'Press RETURN to continue.'
menu offline command q menu-exit
menu offline default q
menu offline single-space
!

Now that I've sort of figured that much out, I can't seem to get the async lines to respond to telnet anymore, which I had working yesterday. They connect, but I never get anything back from the modems, and then the connection times out.
If I manage to get that working again, I can split the modem pool in half and call it a success.


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

john jones
 

开云体育

And I just checked and the device David was connecting to on my side was still set at 10 so that may be why he needed to change his side to 10 also.?? I guess it is NOT a negotiated parameter.

?

I’ll change my win and wout back to 15 to see if that works for David.

?

John

?

From: [email protected] <[email protected]> On Behalf Of john jones via groups.io
Sent: Saturday, July 2, 2022 7:00 PM
To: [email protected]
Subject: Re: JJ 2611 config WAS: RE: [X.25] Cisco 2620 as PAD for a modem bank

?

Evan Stewart and I ran into that window size issue a few days ago and then I thought it went away.

?

I’ve been using a bunch of different IOS images on different platforms so that may be part of it but perhaps simply lower the window size is an easy enough fix.

?

John

?

From: [email protected] <[email protected]> On Behalf Of David Kuder
Sent: Saturday, July 2, 2022 5:02 PM
To: [email protected]
Subject: Re: JJ 2611 config WAS: RE: [X.25] Cisco 2620 as PAD for a modem bank

?

I had to add the following lines to get any pad connections to go through on the 2620:

x25 profile TELEBAHN dxe

?x25 facility windowsize 10 10

?x25 facility packetsize 1024 1024

?x25 subscribe packetsize permit 32 1024 target 512 1024

?x25 subscribe windowsize permit 1 16 target 2 10


with those lines applied I was finally able to connect to JJ's and I also managed to get an inbound PAD to VTYs setup

-DK


Re: Cisco 2620 as PAD for a modem bank

john jones
 

开云体育

Would you mind sharing your menu configuration section, obscuring anything that should be obscured?

?

Thanks!

?

John

?

From: [email protected] <[email protected]> On Behalf Of David Kuder
Sent: Friday, July 1, 2022 11:29 PM
To: [email protected]
Subject: [X.25] Cisco 2620 as PAD for a modem bank

?

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
!


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

john jones
 

开云体育

Evan Stewart and I ran into that window size issue a few days ago and then I thought it went away.

?

I’ve been using a bunch of different IOS images on different platforms so that may be part of it but perhaps simply lower the window size is an easy enough fix.

?

John

?

From: [email protected] <[email protected]> On Behalf Of David Kuder
Sent: Saturday, July 2, 2022 5:02 PM
To: [email protected]
Subject: Re: JJ 2611 config WAS: RE: [X.25] Cisco 2620 as PAD for a modem bank

?

I had to add the following lines to get any pad connections to go through on the 2620:

x25 profile TELEBAHN dxe

?x25 facility windowsize 10 10

?x25 facility packetsize 1024 1024

?x25 subscribe packetsize permit 32 1024 target 512 1024

?x25 subscribe windowsize permit 1 16 target 2 10


with those lines applied I was finally able to connect to JJ's and I also managed to get an inbound PAD to VTYs setup

-DK