Trying to understand format of old FTP connection using EBCDIC

I'm trying to figure out the structure of some old SLIP FTP code. I have figured out a few things about it but would like some help if I can find anyone out there familiar with it. For one thing, it uses EBCDIC. Here are the first 2 records of the transaction. The first is the client and the next is the response.

C0 45 00 00 26 3B 38 00 00 FF 01 5C A3 20 E3 71 6F 20 61 71 48 08 00 EC C1 CC 02 00 00 0C 0F 69 4E DB DC D4 01 00 08 09 C0

C0 45 00 00 26 0A 98 00 00 40 01 4C 44 20 61 71 48 20 E3 71 6F 00 00 F4 C1 CC 02 00 00 0C 0F 69 4E DB DC D4 01 00 08 09 C0

In the first record, the client request, the starting "C0" and ending "C0" signify the start and stop of a SLIP packet. Bytes 13-16 are the IP address of the server. Bytes 17-20 are the Gateway IP address. So far, that is all I have figured out. If anyone has any documentation that breaks down the data structure of this, I would greatly appreciate it.

Terry