1 /* sorted */ 2 AX25_WINDOW 1 3 AX25_T1 2 4 AX25_N2 3 5 AX25_T3 4 6 AX25_T2 5 7 AX25_BACKOFF 6 8 AX25_EXTSEQ 7 9 AX25_PIDINCL 8 10 AX25_IDLE 9 11 AX25_PACLEN 10 12 AX25_IAMDIGI 12 13 14 /* 13, 25, or 16409, depending on arch */ 15 SO_BINDTODEVICE 16