rx_socket = socket(PF_PACKET, SOCK_PACKET, htons(proto));

   tx_socket = socket(PF_AX25, SOCK_DGRAM, 0)


Where the 'proto' is either ETH_P_AX25  or ETH_P_ALL.


In the  'listen'  utility the proto is  ETH_P_AX25  unless '-a' option
is given, then it is ETH_P_ALL.  In  'aprsd' it is always ETH_P_ALL.


Given explanation is that ETH_P_AX25 sees only incoming packets, while
ETH_P_ALL sees also outgoing ones.   Presuming that I am only interested
in AX.25 packets but do want to know also outgoing frames, which one
I should use -- or is the commentary on this utilities sources wrong ?

  73 de Matti, OH2MQK
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