DLT_SLIP          126 net/bpf.c      	case DLT_SLIP:
DLT_SLIP          230 net/if_sl.c    	bpfattach(&sc->sc_bpf, &sc->sc_if, DLT_SLIP, SLIP_HDRLEN);
DLT_SLIP          368 net/if_strip.c 		bpfattach(&sc->sc_bpf, &sc->sc_if, DLT_SLIP, SLIP_HDRLEN);