Differences

This shows you the differences between two versions of the page.

--- packet:protocols [2024/04/18 09:11] – [AXIP] Add diagram 2e0itb
+++ packet:protocols [2024/04/19 22:34] – [AXTCP] 2e0itb
@@ Line 5: / Line 5: @@
 Keep It Simple Silly
-Protocol used between a TNC and a computer.  See [[packet:packet_documents|Packet Documents]].
+Protocol used between a TNC and a computer.  See [[packet:kiss-protocol|The KISS TNC: A simple Host-to-TNC communications protocol]], and [[packet:packet_documents|Packet Documents]].
 ====== AXIP ======
@@ Line 13: / Line 13: @@
 Appears to be an AX.25 frame in an IP packet with the IPPROTO field set to 93.
-| IP | AX.25 Frame | CRC16 |
+| IP | AX.25 Frame | AX.25 CRC16 |
@@ Line 22: / Line 22: @@
 Appears to be an AX.25 frame in a UDP packet.  No common port number in usage.
-| IP | UDP | AX.25 Frame | CRC |
+| IP | UDP | AX.25 Frame | AX.25 CRC16 |
 ====== AXTCP ======
@@ Line 30: / Line 30: @@
 Appears to be two byte length (big endian), followed by an AX.25 packet.  No common port number in usage.
-| IP | TCP | 2 byte len (big endian) | AX.25 Packet | AX.25 CRC16 |
+| IP | TCP | 2 byte len (big endian) | AX.25 Frame | AX.25 CRC16 |
+For xrouter at least, the first packet needs to have your alias in the destination field, and your callsign in the source field, the control field can be anything, and the CRC must match.