96f83bb03a
Enable logic to send ARP requests if the target IP address mapping does not appear in the ARP table. Please check the comment in https://github.com/apache/nuttx/issues/12446#issuecomment-2145856778
88 lines
2.3 KiB
Plaintext
88 lines
2.3 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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menu "ARP Configuration"
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config NET_ARP
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bool "Address Resolution Protocol"
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default y
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select MM_IOB
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depends on NET_ETHERNET && NET_IPv4
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---help---
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This setting is currently overridden by logic in include/nuttx/net
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if NET_ARP
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config NET_ARPTAB_SIZE
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int "ARP table size"
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default 16
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---help---
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The size of the ARP table (in entries).
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config NET_ARP_MAXAGE
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int "Max ARP entry age"
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default 120
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---help---
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The maximum age of ARP table entries measured in deciseconds. The
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default value of 120 corresponds to 20 minutes (BSD default).
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config NET_ARP_IPIN
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bool "ARP address harvesting"
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default n
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---help---
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Harvest IP/MAC address mappings from the ARP table from incoming
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IP packets. If this option is selected, CONFIG_NET_ARTAB_SIZE
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should be large enough to hold the hosts on the network.
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This option is NOT recommended on busy networks with many remote
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hosts. On such networks the ARP table will be full most of the
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time and the MAC addresses that you want will get flushed from
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the table often.
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config NET_ARP_SEND
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bool "ARP send"
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default y
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---help---
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Enable logic to send ARP requests if the target IP address mapping
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does not appear in the ARP table.
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if NET_ARP_SEND
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config ARP_SEND_MAXTRIES
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int "ARP send retries"
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default 5
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---help---
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Send the ARP request this number of times before giving up and
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deciding that the target IP address is non reachable.
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config ARP_SEND_DELAYMSEC
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int "ARP re-send delay"
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default 20
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---help---
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Wait this number of milliseconds after sending the ARP request
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before checking if the IP address mapping is present in the ARP
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table. This time should be related to the maximum round trip time
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on the network since it is basically the time from when an ARP
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request is sent until the response is received.
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endif # NET_ARP_SEND
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config NET_ARP_DUMP
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bool "Dump ARP packet header"
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default n
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depends on DEBUG_NET_INFO
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---help---
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Dump ARP packets to the SYSLOG device.
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config NET_ARP_ACD
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bool "Support of ARP address Address Conflict Detection"
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default n
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depends on NET_ARP_SEND
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---help---
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Enable Support of ARP address Address Conflict Detection
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endif # NET_ARP
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endmenu # ARP Configuration
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