x.25 connection refused

[Jason Peng]

Hello, everyone,

I setup a x.25 card(J3526A) on my system. Hardware is claimed and 3 levels of x.25 link is operational from the results of x25stat -d /dev/x25_0p1|grep -i state
However, when I use the demo program under directory /var/x.25/netdemo to test connectivity, it returns the following code:

SIGURG handler called
Out-of-band:recv() returns 5 bytes
5 0 0 ffffffe8 0
Out-of-band: type=00 len=5
CLEAR Packet Received
Cause-code: 0
Diagnostic code: -24
connect call: Connection refused

As I notice, what is the meaning of diagnostics -24? what is the possible reason of this problem? How to solve it?

Thanks a lot!

Jason Peng
Jan 2,2003

[Chris Wilshaw]

The full exit condition from X25 is made of the Cause Code and Diagnostic Code (in this case 0 and 24.

According to a list of the errors that I have, a cause code of 0 means that it is "DTE originated", while a Diag code of 24 means "packet on unassigned LCN"

Unfortunately, I can't give a further explanation of this error, or suggest a solution, but hopefully this info may mean that someone else can.

[Jason Peng]

Hello,

After my research, diagnostic code should be 232(-24) instead of 24 which means:

Connection refused, Network Service problem ... NSAP unreachable.

What is the likely cause of the above error?

Thanks!

Jason Peng
Jan 2,2003

[Anthony deRito]

Not an X.25 expert but the likely cause is that address given by your X.25 provider to access the X.25 cloud is not compatible with your X.25 configuration parameters.