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lowpan6_opts.h File Reference
`#include "lwip/opt.h"`

## Macros

#define | LWIP_6LOWPAN_NUM_CONTEXTS 10
#define | LWIP_6LOWPAN_INFER_SHORT_ADDRESS 1
#define | LWIP_6LOWPAN_IPHC 1
#define | LWIP_6LOWPAN_802154_HW_CRC 0
#define | LWIP_6LOWPAN_CALC_CRC(buf, len)
#define | LWIP_LOWPAN6_DEBUG LWIP_DBG_OFF
#define | LWIP_LOWPAN6_802154_DEBUG LWIP_DBG_OFF
#define | LWIP_LOWPAN6_IP_COMPRESSED_DEBUG LWIP_DBG_OFF
#define | LWIP_LOWPAN6_DECOMPRESSION_DEBUG LWIP_DBG_OFF
#define | LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG LWIP_DBG_OFF
#define | LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS 1

## Detailed Description

6LowPAN options list

## Macro Definition Documentation

## LWIP_6LOWPAN_802154_HW_CRC

#define LWIP_6LOWPAN_802154_HW_CRC 0

Set this to 1 if your IEEE 802.15.4 interface can calculate and check the CRC in hardware. This means TX packets get 2 zero bytes added on transmission which are to be filled with the CRC.

## LWIP_6LOWPAN_CALC_CRC

#define LWIP_6LOWPAN_CALC_CRC | ( |  | buf,
|  |  | len )

Value:
lowpan6_calc_crc(buf, len)
lowpan6_calc_crc
u16_t lowpan6_calc_crc(const void *buf, u16_t len)
Definition lowpan6.c:262

If LWIP_6LOWPAN_802154_HW_CRC==0, this can override the default slow implementation of the CRC used for 6LoWPAN over IEEE 802.15.4 (which uses a shift register).

## LWIP_6LOWPAN_INFER_SHORT_ADDRESS

#define LWIP_6LOWPAN_INFER_SHORT_ADDRESS 1

LWIP_6LOWPAN_INFER_SHORT_ADDRESS: set this to 0 to disable creating short addresses for matching addresses (debug only)

## LWIP_6LOWPAN_IPHC

#define LWIP_6LOWPAN_IPHC 1

LWIP_6LOWPAN_IPHC: set this to 0 to disable IP header compression as per RFC 6282 (which is mandatory for BLE)

## LWIP_6LOWPAN_NUM_CONTEXTS

#define LWIP_6LOWPAN_NUM_CONTEXTS 10

LWIP_6LOWPAN_NUM_CONTEXTS: define the number of compression contexts per netif type

## LWIP_LOWPAN6_802154_DEBUG

#define LWIP_LOWPAN6_802154_DEBUG LWIP_DBG_OFF

Debug level for 6LoWPAN over IEEE 802.15.4

## LWIP_LOWPAN6_DEBUG

#define LWIP_LOWPAN6_DEBUG LWIP_DBG_OFF

Debug level for 6LoWPAN in general

## LWIP_LOWPAN6_DECOMPRESSION_DEBUG

#define LWIP_LOWPAN6_DECOMPRESSION_DEBUG LWIP_DBG_OFF

LWIP_LOWPAN6_DECOMPRESSION_DEBUG: enable decompression debug output

## LWIP_LOWPAN6_IP_COMPRESSED_DEBUG

#define LWIP_LOWPAN6_IP_COMPRESSED_DEBUG LWIP_DBG_OFF

LWIP_LOWPAN6_IP_COMPRESSED_DEBUG: enable compressed IP frame output debugging

## LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG

#define LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG LWIP_DBG_OFF

LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG: enable decompressed IP frame output debugging

## LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS

#define LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS 1

LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS: Currently, the linux kernel driver for 6lowpan sets/clears a bit in the address, depending on the BD address (either public or not). Might not be RFC7668 conform, so you may select to do that (=1) or not (=0)