166 lines
4.2 KiB
Plaintext
166 lines
4.2 KiB
Plaintext
# Kconfig.ipv6 - IPv6 Options
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#
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# Copyright (c) 2016 Intel Corporation.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig NET_IPV6
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bool "IPv6"
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default y
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help
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Enable IPv6 support. This should be selected by default as there
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is limited set of network bearers provided that support IPv4.
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if NET_IPV6
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config NET_IF_UNICAST_IPV6_ADDR_COUNT
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int "Max number of unicast IPv6 addresses per network interface"
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default 2
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config NET_IF_MCAST_IPV6_ADDR_COUNT
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int "Max number of multicast IPv6 addresses per network interface"
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default 3
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config NET_IF_IPV6_PREFIX_COUNT
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int "Max number of IPv6 prefixes per network interface"
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default 2
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config NET_INITIAL_HOP_LIMIT
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int "Initial hop limit for a connection"
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default 64
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help
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The value should be > 0
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config NET_IPV6_MAX_NEIGHBORS
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int "How many IPv6 neighbors are supported"
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default 8
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range 1 254
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help
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The value depends on your network needs.
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config NET_IPV6_FRAGMENT
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bool "Support IPv6 fragmentation"
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default n
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help
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IPv6 fragmentation is disabled by default. This saves memory and
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should not cause issues normally as we support anyway the minimum
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length IPv6 packets (1280 bytes). If you enable fragmentation
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support, please increase amount of RX data buffers so that larger
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than 1280 byte packets can be received.
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config NET_IPV6_FRAGMENT_MAX_COUNT
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int "How many packets to reassemble at a time"
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range 1 16
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default 1
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depends on NET_IPV6_FRAGMENT
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help
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How many fragmented IPv6 packets can be waiting reassembly
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simultaneously. Each fragment count might use up to 1280 bytes
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of memory so you need to plan this and increase the network buffer
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count.
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config NET_IPV6_FRAGMENT_TIMEOUT
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int "How long to wait the fragments to receive"
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range 1 60
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default 5
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depends on NET_IPV6_FRAGMENT
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help
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How long to wait for IPv6 fragment to arrive before the reassembly
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will timeout. RFC 2460 chapter 4.5 tells to wait for 60 seconds but
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this might be too long in memory constrained devices. This value
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is in seconds.
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config NET_IPV6_MLD
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bool "Multicast Listener Discovery support"
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default y
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help
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The value depends on your network needs. MLD should normally
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be active. Currently we support only MLDv2. See RFC 3810 for
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details.
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config NET_IPV6_NBR_CACHE
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bool "Neighbor cache"
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default y
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help
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The value depends on your network needs. Neighbor cache should
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normally be active.
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config NET_IPV6_ND
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bool "Activate neighbor discovery"
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depends on NET_IPV6_NBR_CACHE
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default y
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help
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The value depends on your network needs. ND should normally
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be active.
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config NET_IPV6_DAD
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bool "Activate duplicate address detection"
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depends on NET_IPV6_NBR_CACHE
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default y
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help
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The value depends on your network needs. DAD should normally
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be active.
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config NET_IPV6_RA_RDNSS
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bool "Support RA RDNSS option"
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depends on NET_IPV6_ND
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default y
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help
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Support Router Advertisement Recursive DNS Server option.
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See RFC 6106 for details. The value depends on your network needs.
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config NET_6LO
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bool "Enable 6lowpan IPv6 Compression library"
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default n
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default y if NET_L2_IEEE802154
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help
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6lowpan compression and fragmentation. It is enabled by default
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if 802.15.4 is present, since using IPv6 on it requires it.
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config NET_6LO_CONTEXT
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bool "Enable 6lowpan context based compression"
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default n
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depends on NET_6LO
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help
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Enables 6lowpan context based compression based on information
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received in RA(Router Advertisement) message.
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config NET_MAX_6LO_CONTEXTS
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int "Number of supported 6CO (6lowpan contexts options)"
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depends on NET_6LO_CONTEXT
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default 1
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range 1 16
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help
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6lowpan context options table size. The value depends on your
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network and memory consumption. More 6CO options uses more memory.
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config NET_DEBUG_6LO
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bool "Enable 6lowpan debug"
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depends on NET_6LO && NET_LOG
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if NET_LOG
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config NET_DEBUG_IPV6
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bool "Debug core IPv6"
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default n
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help
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Enables core IPv6 code part to output debug messages
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config NET_DEBUG_ICMPV6
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bool "Debug ICMPv6"
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default n
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help
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Enables ICMPv6 code part to output debug messages
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config NET_DEBUG_IPV6_NBR_CACHE
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bool "Debug IPv6 neighbor cache"
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default n
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help
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Enables Neighbor Cache code to output debug messages
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endif # NET_LOG
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endif # NET_IPV6
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