zephyr/subsys/net/ip/Kconfig.ipv4

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# IPv4 Options
# Copyright (c) 2016 Intel Corporation.
# SPDX-License-Identifier: Apache-2.0
menuconfig NET_IPV4
bool "IPv4"
help
Enable IPv4 support. If this is enabled then the device is
able to send and receive IPv4 network packets.
if NET_IPV4
config NET_INITIAL_TTL
int "Initial time to live for a connection"
default 64
help
The value should be > 0
config NET_IF_MAX_IPV4_COUNT
int "Max number of IPv4 network interfaces in the system"
default NET_VLAN_COUNT if NET_VLAN
default 1
help
This tells how many network interfaces there will be in the system
that will have IPv4 enabled.
config NET_IF_UNICAST_IPV4_ADDR_COUNT
int "Max number of unicast IPv4 addresses per network interface"
default 2 if NET_IPV4_AUTO
default 1
config NET_IF_MCAST_IPV4_ADDR_COUNT
int "Max number of multicast IPv4 addresses per network interface"
default 1
config NET_ICMPV4_ACCEPT_BROADCAST
bool "Accept broadcast ICMPv4 echo-request"
help
If set, then respond to ICMPv4 echo-request that is sent to
broadcast address.
config NET_IPV4_ACCEPT_ZERO_BROADCAST
bool "Accept 0.0.0.0 broadcast destination address"
help
If set, then accept UDP packets destined to non-standard
0.0.0.0 broadcast address as described in RFC 1122 ch. 3.3.6
config NET_DHCPV4
bool "Enable DHCPv4 client"
select NET_MGMT
select NET_MGMT_EVENT
depends on NET_UDP
config NET_DHCPV4_INITIAL_DELAY_MAX
int "Maximum time out for initial discover request"
depends on NET_DHCPV4
default 10
range 2 10
help
As per RFC2131 4.1.1, we wait a random period between
1 and 10 seconds before sending the initial discover.
config NET_IPV4_AUTO
bool "Enable IPv4 autoconfiguration [EXPERIMENTAL]"
depends on NET_ARP
help
Enables IPv4 auto IP address configuration (see RFC 3927)
config NET_IPV4_HDR_OPTIONS
bool "Enable IPv4 Header options support"
help
Enables IPv4 header options support. Current support for only
ICMPv4 Echo request. Only RecordRoute and Timestamp are handled.
module = NET_IPV4
module-dep = NET_LOG
module-str = Log level for core IPv4
module-help = Enables core IPv4 code to output debug messages.
source "subsys/net/Kconfig.template.log_config.net"
module = NET_ICMPV4
module-dep = NET_LOG
module-str = Log level for ICMPv4
module-help = Enables ICMPv4 code to output debug messages.
source "subsys/net/Kconfig.template.log_config.net"
if NET_DHCPV4
module = NET_DHCPV4
module-dep = NET_LOG
module-str = Log level for DHCPv4 client
module-help = Enable debug diagnostic from DHCPV4 client.
source "subsys/net/Kconfig.template.log_config.net"
endif # NET_DHCPV4
if NET_IPV4_AUTO
module = NET_IPV4_AUTO
module-dep = NET_LOG
module-str = Log level for IPv4 autoconf client
module-help = Enable debug diagnostic from IPv4 autoconf client.
source "subsys/net/Kconfig.template.log_config.net"
endif # NET_IPV4_AUTO
endif # NET_IPV4