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Masahiro Yamadaed363232014-09-16 16:32:58 +09001#
2# Network configuration
3#
4
5menuconfig NET
6 bool "Networking support"
Michal Simek3b3ea2c2018-02-26 16:01:02 +01007 default y
Masahiro Yamadaed363232014-09-16 16:32:58 +09008
9if NET
10
Philippe Reynesb43ea1b2020-09-18 14:13:00 +020011config PROT_UDP
12 bool "Enable generic udp framework"
13 help
14 Enable a generic udp framework that allows defining a custom
15 handler for udp protocol.
16
Adam Ford3275f262020-07-03 09:00:14 -050017config BOOTP_SEND_HOSTNAME
18 bool "Send hostname to DNS server"
19 help
20 Some DHCP servers are capable to do a dynamic update of a
21 DNS server. To do this, they need the hostname of the DHCP
22 requester.
23 If CONFIG_BOOTP_SEND_HOSTNAME is defined, the content
24 of the "hostname" environment variable is passed as
25 option 12 to the DHCP server.
26
Joe Hershbergerbef10142015-05-04 14:55:13 -050027config NET_RANDOM_ETHADDR
28 bool "Random ethaddr if unset"
29 help
30 Selecting this will allow the Ethernet interface to function
31 even when the ethaddr variable for that interface is unset.
32 A new MAC address will be generated on every boot and it will
33 not be added to the environment.
34
Bernhard Nortmann26660742015-09-14 15:29:46 +020035config NETCONSOLE
36 bool "NetConsole support"
37 help
38 Support the 'nc' input/output device for networked console.
39 See README.NetConsole for details.
40
Marek Vasut3f6bcdf2019-06-11 04:51:14 +020041config IP_DEFRAG
42 bool "Support IP datagram reassembly"
43 default n
44 help
45 Selecting this will enable IP datagram reassembly according
46 to the algorithm in RFC815.
47
Rasmus Villemoes215df012020-02-07 15:17:42 +000048config NET_MAXDEFRAG
49 int "Size of buffer used for IP datagram reassembly"
50 depends on IP_DEFRAG
51 default 16384
52 range 1024 65536
53 help
54 This defines the size of the statically allocated buffer
55 used for reassembly, and thus an upper bound for the size of
56 IP datagrams that can be received.
57
Marek Vasutb618b372019-06-11 04:51:15 +020058config TFTP_BLOCKSIZE
59 int "TFTP block size"
Andre Przywara16cdc2d2019-11-23 17:58:59 +000060 default 1468
Marek Vasutb618b372019-06-11 04:51:15 +020061 help
62 Default TFTP block size.
Patrick Delaunay421de7f2020-04-22 14:18:25 +020063 The MTU is typically 1500 for ethernet, so a TFTP block of
64 1468 (MTU minus eth.hdrs) provides a good throughput with
65 almost-MTU block sizes.
66 You can also activate CONFIG_IP_DEFRAG to set a larger block.
Marek Vasutb618b372019-06-11 04:51:15 +020067
Ramon Friedcc6b87e2020-07-18 23:31:46 +030068config TFTP_WINDOWSIZE
69 int "TFTP window size"
70 default 1
71 help
72 Default TFTP window size.
73 RFC7440 defines an optional window size of transmits,
74 before an ack response is required.
75 The default TFTP implementation implies a window size of 1.
76
Lyle Franklinc8e251f2019-08-05 06:23:42 -040077config SERVERIP_FROM_PROXYDHCP
78 bool "Get serverip value from Proxy DHCP response"
79 help
80 Allows bootfile config to be fetched from Proxy DHCP server
81 while IP is obtained from main DHCP server.
82
83config SERVERIP_FROM_PROXYDHCP_DELAY_MS
84 int "# of additional milliseconds to wait for ProxyDHCP response"
85 default 100
86 help
87 Amount of additional time to wait for ProxyDHCP response after
88 receiving response from main DHCP server. Has no effect if
89 SERVERIP_FROM_PROXYDHCP is false.
90
Masahiro Yamadaed363232014-09-16 16:32:58 +090091endif # if NET