Actually I've successfully used JPOS (a Java based ISO8583 library) to connect to the BASE24-eps. Am just trying to work on a 'lightweight' iso8583 encoder/decoder in Perl (which I love so much).

When sending from JPOS the header info are stripped off, so I 'thought' there should be a way in Perl to either strip off the headers or send the headers in a way that the Base24-eps server will 'understand' the headers and strip them off without junking my message.

Look at it this way, when sending letters to my mum I always fold the paper in a special way and sign the envelope in such a way that my mum can trust the letter is actually from me.

While Wireshark successfully reconstructs my message, Base24-eps on the other hand is junking the same messaging. am not giving up, but I may as well continue with JPOS while trying to figure out what is NOT happening.