For what it's worth, I've just been trying to figure out why it *didn't* work the last time – previously I had

?x25 win 7
?x25 wout 7
?x25 ips 1024
?x25 ops 1024
?x25 subscribe packetsize permit 128 1024
?x25 subscribe windowsize permit 2 15

for interop with Hans' SunLink (which refuses calls otherwise as it isn't configured to accept anything above 7), but right now I've reverted to the "original"

?x25 win 15
?x25 wout 15
?x25 ips 1024
?x25 ops 1024
? ! no 'x25 subscribe packetsize'
? ! no 'x25 subscribe windowsize'

It's really not clear to me how the facility negotiation works...

On 2023-12-16 21:40, Christopher Collet wrote:

That did the trick. Thanks! I just had to remove the X25 TELEBAHN profile and now it works fine

On Fri, Dec 15, 2023 at 5:30?PM Phillip Heller via <pheller=[email protected]> wrote:

I can check my Cisco config tomorrow morning, but I recall running into something similar.? Try to adjust your profile to window size of 2 (both directions) and modulo 8, or disassociate the profile entirely.

Also, Wireshark has a comprehensive dissector for XOT, so it may prove helpful in troubleshooting and comparing with what xotpad negotiates.

Regards,

? Phil

On Dec 15, 2023, at 2:55?PM, Christopher Collet <ccolletpdp11@...> wrote:

?

I configured my Cisco as per the sample?configuration on the x25 website but it seems that I'm still missing something. Looks like the error is " ?XOT Call Confirm packet, Bad value for facility, Window size is not within permitted range." I'm able to connect to 471041 just fine from xotpad

Router#pad 471041
Trying 471041...
% Connection refused by remote host

Router#
*Dec 15 20:32:23.522: [193.219.181.219,1998/,25515]: XOT O P2 Call (18) 128 lci 1
*Dec 15 20:32:23.522: ? From (0): ?To (6): 471041
*Dec 15 20:32:23.522: ? Facilities: (6)
*Dec 15 20:32:23.522: ? ? Packet sizes: 1024 1024
*Dec 15 20:32:23.522: ? ? Window sizes: 15 15
*Dec 15 20:32:23.522: ? Call User Data (4): 0x01000000 (pad)
*Dec 15 20:32:23.682: [193.219.181.219,1998/,25515]: XOT I P2 Call Confirm (11) 128 lci 1
*Dec 15 20:32:23.682: ? From (0): ?To (0):
*Dec 15 20:32:23.682: ? Facilities: (6)
*Dec 15 20:32:23.682: ? ? Packet sizes: 1024 1024
*Dec 15 20:32:23.686: ? ? Window sizes: 15 15
*Dec 15 20:32:23.686: XOT Call Confirm packet, Bad value for facility, Window size is not within permitted range
*Dec 15 20:32:23.686: [193.219.181.219,1998/,25515]: XOT O P2 Clear (5) 128 lci 1
*Dec 15 20:32:23.686: ? Cause 3, Diag 66 (Invalid facility request/Facility parameter not allowed)
*Dec 15 20:32:23.686: [193.219.181.219,1998/,25515]: XOT I P6 Data (5) Q 128 lci 1 PS 0 PR 0
*Dec 15 20:32:23.690: [193.219.181.219,1998/,25515]: XOT I P6 Data (107) 128 lci 1 PS 1 PR 0
*Dec 15 20:32:23.838: [193.219.181.219,1998/,25515]: XOT I P6 Clear Confirm (3) 128 lci 1

On Wed, Dec 13, 2023 at 12:27?PM Christopher Collet via <ccolletpdp11=[email protected]> wrote:

It doesn't look like the Sparcstation 1 has jumpers on the motherboard to set the serial ports to RS423... but I also have a Sparcstation 4 and a 10 so I guess I'll just use one of those instead. Thanks!

On Tue, Dec 12, 2023 at 8:12?PM Dave Brown <dave@...> wrote:

Assuming the SparcStation 1 supports RS530 differential serial.? RS530 defines the cable, and it uses EIA/RS-423 electrical signaling.

Some Sparc serial ports can be set to RS423. I think you might get lucky with the SparcStation 1; and further assuming it’s similar to the 4 or 5; they could. ?

On Dec 12, 2023, at 7:17?PM, Christopher Collet <ccolletpdp11@...> wrote:

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?"??