source: branches/3.2/mindi-busybox/networking/udhcp/Config.src @ 3232

Last change on this file since 3232 was 3232, checked in by bruno, 5 years ago
  • Update mindi-busybox to 1.21.1
File size: 4.8 KB
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
8config UDHCPD
9    bool "udhcp server (udhcpd)"
10    default y
11    select PLATFORM_LINUX
12    help
13      udhcpd is a DHCP server geared primarily toward embedded systems,
14      while striving to be fully functional and RFC compliant.
16config DHCPRELAY
17    bool "dhcprelay"
18    default y
19    depends on UDHCPD
20    help
21      dhcprelay listens for dhcp requests on one or more interfaces
22      and forwards these requests to a different interface or dhcp
23      server.
26    bool "Lease display utility (dumpleases)"
27    default y
28    depends on UDHCPD
29    help
30      dumpleases displays the leases written out by the udhcpd server.
31      Lease times are stored in the file by time remaining in lease, or
32      by the absolute time that it expires in seconds from epoch.
35    bool "Rewrite the lease file at every new acknowledge"
36    default y
37    depends on UDHCPD
38    help
39      If selected, udhcpd will write a new file with leases every
40      time a new lease has been accepted, thus eliminating the need
41      to send SIGUSR1 for the initial writing or updating. Any timed
42      rewriting remains undisturbed.
45    bool "Select IP address based on client MAC"
46    default n
47    depends on UDHCPD
48    help
49      If selected, udhcpd will base its selection of IP address to offer
50      on the client's hardware address. Otherwise udhcpd uses the next
51      consecutive free address.
53      This reduces the frequency of IP address changes for clients
54      which let their lease expire, and makes consecutive DHCPOFFERS
55      for the same client to (almost always) contain the same
56      IP address.
59    string "Absolute path to lease file"
60    default "/var/lib/misc/udhcpd.leases"
61    depends on UDHCPD
62    help
63      udhcpd stores addresses in a lease file. This is the absolute path
64      of the file. Normally it is safe to leave it untouched.
66config UDHCPC
67    bool "udhcp client (udhcpc)"
68    default y
69    select PLATFORM_LINUX
70    help
71      udhcpc is a DHCP client geared primarily toward embedded systems,
72      while striving to be fully functional and RFC compliant.
74      The udhcp client negotiates a lease with the DHCP server and
75      runs a script when a lease is obtained or lost.
78    bool "Verify that the offered address is free, using ARP ping"
79    default y
80    depends on UDHCPC
81    help
82      If selected, udhcpc will send ARP probes and make sure
83      the offered address is really not in use by anyone. The client
84      will DHCPDECLINE the offer if the address is in use,
85      and restart the discover process.
88    bool "Enable '-P port' option for udhcpd and udhcpc"
89    default n
90    depends on UDHCPD || UDHCPC
91    help
92      At the cost of ~300 bytes, enables -P port option.
93      This feature is typically not needed.
95config UDHCP_DEBUG
96    int "Maximum verbosity level for udhcp applets (0..9)"
97    default 9
98    range 0 9
99    depends on UDHCPD || UDHCPC || DHCPRELAY
100    help
101      Verbosity can be increased with multiple -v options.
102      This option controls how high it can be cranked up.
104      Bigger values result in bigger code. Levels above 1
105      are very verbose and useful for debugging only.
107config FEATURE_UDHCP_RFC3397
108    bool "Support for RFC3397 domain search (experimental)"
109    default y
110    depends on UDHCPD || UDHCPC
111    help
112      If selected, both client and server will support passing of domain
113      search lists via option 119, specified in RFC 3397,
114      and SIP servers option 120, specified in RFC 3361.
116config FEATURE_UDHCP_8021Q
117    bool "Support for 802.1Q VLAN parameters"
118    default y
119    depends on UDHCPD || UDHCPC
120    help
121      If selected, both client and server will support passing of VLAN
122      ID and priority via options 132 and 133 as per 802.1Q.
125    string "Absolute path to config script"
126    default "/usr/share/udhcpc/default.script"
127    depends on UDHCPC
128    help
129      This script is called after udhcpc receives an answer. See
130      examples/udhcp for a working example. Normally it is safe
131      to leave this untouched.
134    int "DHCP options slack buffer size"
135    default 80
136    range 0 924
137    depends on UDHCPD || UDHCPC
138    help
139      Some buggy DHCP servers send DHCP offer packets with option
140      field larger than we expect (which might also be considered a
141      buffer overflow attempt). These packets are normally discarded.
142      If circumstances beyond your control force you to support such
143      servers, this may help. The upper limit (924) makes dhcpc accept
144      even 1500 byte packets (maximum-sized ethernet packets).
146      This option does not make dhcp[cd] emit non-standard
147      sized packets.
149      Known buggy DHCP servers:
150      3Com OfficeConnect Remote 812 ADSL Router:
151        seems to confuse maximum allowed UDP packet size with
152        maximum size of entire IP packet, and sends packets which are
153        28 bytes too large.
154      Seednet (ISP) VDSL: sends packets 2 bytes too large.
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