| # Kconfig.ipv6 - IPv6 Options |
| |
| # |
| # Copyright (c) 2016 Intel Corporation. |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| |
| menuconfig NET_IPV6 |
| bool "IPv6" |
| default y |
| help |
| Enable IPv6 support. This should be selected by default as there |
| is limited set of network bearers provided that support IPv4. |
| |
| if NET_IPV6 |
| |
| config NET_IF_UNICAST_IPV6_ADDR_COUNT |
| int "Max number of unicast IPv6 addresses per network interface" |
| default 2 |
| |
| config NET_IF_MCAST_IPV6_ADDR_COUNT |
| int "Max number of multicast IPv6 addresses per network interface" |
| default 3 |
| |
| config NET_IF_IPV6_PREFIX_COUNT |
| int "Max number of IPv6 prefixes per network interface" |
| default 2 |
| |
| config NET_INITIAL_HOP_LIMIT |
| int "Initial hop limit for a connection" |
| default 64 |
| help |
| The value should be > 0 |
| |
| config NET_IPV6_MAX_NEIGHBORS |
| int "How many IPv6 neighbors are supported" |
| default 8 |
| range 1 254 |
| help |
| The value depends on your network needs. |
| |
| config NET_IPV6_FRAGMENT |
| bool "Support IPv6 fragmentation" |
| default n |
| help |
| IPv6 fragmentation is disabled by default. This saves memory and |
| should not cause issues normally as we support anyway the minimum |
| length IPv6 packets (1280 bytes). If you enable fragmentation |
| support, please increase amount of RX data buffers so that larger |
| than 1280 byte packets can be received. |
| |
| config NET_IPV6_FRAGMENT_MAX_COUNT |
| int "How many packets to reassemble at a time" |
| range 1 16 |
| default 1 |
| depends on NET_IPV6_FRAGMENT |
| help |
| How many fragmented IPv6 packets can be waiting reassembly |
| simultaneously. Each fragment count might use up to 1280 bytes |
| of memory so you need to plan this and increase the network buffer |
| count. |
| |
| config NET_IPV6_FRAGMENT_TIMEOUT |
| int "How long to wait the fragments to receive" |
| range 1 60 |
| default 5 |
| depends on NET_IPV6_FRAGMENT |
| help |
| How long to wait for IPv6 fragment to arrive before the reassembly |
| will timeout. RFC 2460 chapter 4.5 tells to wait for 60 seconds but |
| this might be too long in memory constrained devices. This value |
| is in seconds. |
| |
| config NET_IPV6_MLD |
| bool "Multicast Listener Discovery support" |
| default y |
| help |
| The value depends on your network needs. MLD should normally |
| be active. Currently we support only MLDv2. See RFC 3810 for |
| details. |
| |
| config NET_IPV6_NBR_CACHE |
| bool "Neighbor cache" |
| default y |
| help |
| The value depends on your network needs. Neighbor cache should |
| normally be active. |
| |
| config NET_IPV6_ND |
| bool "Activate neighbor discovery" |
| depends on NET_IPV6_NBR_CACHE |
| default y |
| help |
| The value depends on your network needs. ND should normally |
| be active. |
| |
| config NET_IPV6_DAD |
| bool "Activate duplicate address detection" |
| depends on NET_IPV6_NBR_CACHE |
| default y |
| help |
| The value depends on your network needs. DAD should normally |
| be active. |
| |
| config NET_IPV6_RA_RDNSS |
| bool "Support RA RDNSS option" |
| depends on NET_IPV6_ND |
| default y |
| help |
| Support Router Advertisement Recursive DNS Server option. |
| See RFC 6106 for details. The value depends on your network needs. |
| |
| config NET_6LO |
| bool "Enable 6lowpan IPv6 Compression library" |
| help |
| 6lowpan compression and fragmentation. |
| |
| config NET_6LO_CONTEXT |
| bool "Enable 6lowpan context based compression" |
| default n |
| depends on NET_6LO |
| help |
| Enables 6lowpan context based compression based on information |
| received in RA(Router Advertisement) message. |
| |
| config NET_MAX_6LO_CONTEXTS |
| int "Number of supported 6CO (6lowpan contexts options)" |
| depends on NET_6LO_CONTEXT |
| default 1 |
| range 1 16 |
| help |
| 6lowpan context options table size. The value depends on your |
| network and memory consumption. More 6CO options uses more memory. |
| |
| config NET_DEBUG_6LO |
| bool "Enable 6lowpan debug" |
| depends on NET_6LO && NET_LOG |
| |
| if NET_LOG |
| |
| config NET_DEBUG_IPV6 |
| bool "Debug core IPv6" |
| default n |
| help |
| Enables core IPv6 code part to output debug messages |
| |
| config NET_DEBUG_ICMPV6 |
| bool "Debug ICMPv6" |
| default n |
| help |
| Enables ICMPv6 code part to output debug messages |
| |
| config NET_DEBUG_IPV6_NBR_CACHE |
| bool "Debug IPv6 neighbor cache" |
| default n |
| help |
| Enables Neighbor Cache code to output debug messages |
| |
| endif # NET_LOG |
| |
| endif # NET_IPV6 |
