jnos2/ax25.netrom.notes at main · DigitalHERMES/jnos2 · GitHub

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RIP (RIF)
---------

ax25

  src  : ac 8a 68 96 98 9a e6
  dest : ac 8a 64 a0 96 a8 69
  ctrl : 24
   pid : cf

netrom

  signature : ff

   nodecall    ac 8a 64 a0 96 a8 08
       hops    01
         tt    00 00

    field len  08
    field type 00
    field data 53 54 45 43 41 54      STECAT

    field len  07
    field type 01
    field data 2c 87 31 04 20

    end RIP ?? 00

    nodecall   82 8a 6a 8a 40 40 1c
        hops   03
         tt    00 6a

    field len  07
    field type 00
    field data 4d 4e 42 50 51         MNBPQ

    end RIP ?? 00

[snip]

    node call  8e 70 a0 b4 a8 40 00
         hops  03
          tt   00 20

    field len  08
    file type  00
    field data 4b 49 44 44 45 52      KIDDER

    field len  07
    field type 01
    field data 2c 83 5b f5 20

    end RIP ?? 00

ax25
----

   dest       AXALEN      ac 8a 64 a0 96 a8 e8

   source     AXALEN      ac 8a 68 96 98 9a 67

   optional digis

   ctrl       BYTE        c2

   pid        BYTE        cf

netrom (L3)
-----------

   source     AXALEN      ac 8a 68 96 98 9a 66

   dest       AXALEN      ac 8a 64 a0 96 a8 69

   ttl        BYTE        09

netrom (L4)
-----------

   header     NR4MINHDR   04 01 05 00 28

                          01

                          ac 8a 68 96 98 9a 60

                          ac 8a 68 96 98 9a 66

L3RTT is actually netrom (L3) with destination L3RTT-0
------------------------------------------------------

0010  src    ac 8a 64 a0 96 a8 08
      dst    98 66 a4 a8 a8 40 60
      ttl    02   (actually called opcode)

      dummy  00 00 00 00

      05 4c 33 52 54 54 3a 20 20 20 20 20 20  ....L3RTT:
0030  35 36 38 32 36 20 20 20 20 20 20 20 20 20 35 39  56826         59
0040  20 20 20 20 20 20 20 20 20 35 39 20 20 20 20 20           59
0050  20 33 31 35 38 34 20 53 54 45 43 41 54 20 4c 45   31584 STECAT LE
0060  56 45 4c 33 5f 56 32 2e 31 20 58 52 6f 75 74 65  VEL3_V2.1 XRoute
0070  72 31 38 37 66 20 24 4d 35 30 30 30 20 24 4e 0d  r187f $M5000 $N.