134 lines
4.2 KiB
Plaintext
134 lines
4.2 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see scripts/kbuild/config-language.txt.
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#
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config APP_UDHCPD
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bool "udhcp Server (udhcpd)"
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default n
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help
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uDHCPd is a DHCP server geared primarily toward embedded systems,
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while striving to be fully functional and RFC compliant.
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See http://udhcp.busybox.net for further details.
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config APP_DHCPRELAY
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bool "dhcprelay"
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default n
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depends on APP_UDHCPD
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help
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dhcprelay listens for dhcp requests on one or more interfaces
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and forwards these requests to a different interface or dhcp
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server.
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config APP_DUMPLEASES
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bool "Lease display utility (dumpleases)"
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default n
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depends on APP_UDHCPD
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help
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dumpleases displays the leases written out by the udhcpd server.
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Lease times are stored in the file by time remaining in lease, or
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by the absolute time that it expires in seconds from epoch.
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See http://udhcp.busybox.net for further details.
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config FEATURE_UDHCPD_WRITE_LEASES_EARLY
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bool "Rewrite the lease file at every new acknowledge"
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default n
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depends on APP_UDHCPD
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help
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If selected, udhcpd will write a new file with leases every
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time a new lease has been accepted, thus eleminating the need
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to send SIGUSR1 for the initial writing, or updating. Any timed
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rewriting remains undisturbed
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config DHCPD_LEASES_FILE
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string "Absolute path to lease file"
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default "/var/lib/misc/udhcpd.leases"
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depends on APP_UDHCPD
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help
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The udhcpd stores address in lease files. Normaly it is save
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to leave it untouched.
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config APP_UDHCPC
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bool "udhcp Client (udhcpc)"
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default n
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help
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uDHCPc is a DHCP client geared primarily toward embedded systems,
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while striving to be fully functional and RFC compliant.
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The udhcp client negotiates a lease with the DHCP server and
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notifies a set of scripts when a lease is obtained or lost.
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See http://udhcp.busybox.net for further details.
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config FEATURE_UDHCPC_ARPING
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bool "Ask udhcpc to verify that the offered address is free, using arpping"
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default y
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depends on APP_UDHCPC
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help
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If selected, udhcpc will use arpping to make sure the offered address
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is really available. The client will DHCPDECLINE the offer if the
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address is in use, and restart the discover process.
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config FEATURE_UDHCP_PORT
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bool "Enable '-P port' option for udhcpd and udhcpc"
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default n
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depends on APP_UDHCPD || APP_UDHCPC
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help
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At the cost of ~300 bytes, enables -P port option.
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This feature is typically not needed.
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config FEATURE_UDHCP_DEBUG
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bool "Compile udhcp with noisy debugging messages"
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default n
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depends on APP_UDHCPD || APP_UDHCPC
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help
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If selected, udhcpd will output extra debugging output. If using
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this option, compile uDHCP with "-g", and do not fork the daemon to
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the background.
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See http://udhcp.busybox.net for further details.
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config FEATURE_RFC3397
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bool "Support for RFC3397 domain search (experimental)"
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default n
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depends on APP_UDHCPD || APP_UDHCPC
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help
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If selected, both client and server will support passing of domain
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search lists via option 119, specified in RFC3397.
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config DHCPC_DEFAULT_SCRIPT
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string "Absolute path to config script"
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default "/usr/share/udhcpc/default.script"
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depends on APP_UDHCPC
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help
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This script is called after udhcpc receives and answer. See
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examples/udhcp for a working example. Normaly it is save
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to leave this untouched.
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config UDHCPC_SLACK_FOR_BUGGY_SERVERS
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int "DHCP options slack buffer size"
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default 80
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range 0 924
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depends on APP_UDHCPD || APP_UDHCPC
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help
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Some buggy DHCP servers will send DHCP offer packets with option
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field larger than we expect (which might also be considered a
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buffer overflow attempt). These packets are normally discarded.
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If circumstances beyond your control force you to support such
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servers, this may help. The upper limit (924) makes dhcpc accept
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even 1500 byte packets (maximum-sized ethernet packets).
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This options does not make dhcp[cd] emit non-standard
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sized packets.
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Known buggy DHCP servers:
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3Com OfficeConnect Remote 812 ADSL Router:
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seems to confuse maximum allowed UDP packet size with
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maximum size of entire IP packet, and sends packets which are
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28 bytes too large.
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Seednet (ISP) VDSL: sends packets 2 bytes too big.
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