| # |
| # Network configuration |
| # |
| |
| menuconfig NET |
| bool "Networking support" |
| default y |
| |
| if NET |
| |
| config PROT_UDP |
| bool "Enable generic udp framework" |
| help |
| Enable a generic udp framework that allows defining a custom |
| handler for udp protocol. |
| |
| config BOOTP_SEND_HOSTNAME |
| bool "Send hostname to DNS server" |
| help |
| Some DHCP servers are capable to do a dynamic update of a |
| DNS server. To do this, they need the hostname of the DHCP |
| requester. |
| If CONFIG_BOOTP_SEND_HOSTNAME is defined, the content |
| of the "hostname" environment variable is passed as |
| option 12 to the DHCP server. |
| |
| config NET_RANDOM_ETHADDR |
| bool "Random ethaddr if unset" |
| help |
| Selecting this will allow the Ethernet interface to function even |
| when the ethaddr variable for that interface is unset. In this case, |
| a random MAC address in the locally administered address space is |
| generated. It will be saved to the appropriate environment variable, |
| too. |
| |
| config NETCONSOLE |
| bool "NetConsole support" |
| help |
| Support the 'nc' input/output device for networked console. |
| See README.NetConsole for details. |
| |
| config IP_DEFRAG |
| bool "Support IP datagram reassembly" |
| help |
| Selecting this will enable IP datagram reassembly according |
| to the algorithm in RFC815. |
| |
| config NET_MAXDEFRAG |
| int "Size of buffer used for IP datagram reassembly" |
| depends on IP_DEFRAG |
| default 16384 |
| range 1024 65536 |
| help |
| This defines the size of the statically allocated buffer |
| used for reassembly, and thus an upper bound for the size of |
| IP datagrams that can be received. |
| |
| config TFTP_BLOCKSIZE |
| int "TFTP block size" |
| default 1468 |
| help |
| Default TFTP block size. |
| The MTU is typically 1500 for ethernet, so a TFTP block of |
| 1468 (MTU minus eth.hdrs) provides a good throughput with |
| almost-MTU block sizes. |
| You can also activate CONFIG_IP_DEFRAG to set a larger block. |
| |
| config TFTP_WINDOWSIZE |
| int "TFTP window size" |
| default 1 |
| help |
| Default TFTP window size. |
| RFC7440 defines an optional window size of transmits, |
| before an ack response is required. |
| The default TFTP implementation implies a window size of 1. |
| |
| config TFTP_TSIZE |
| bool "Track TFTP transfers based on file size option" |
| depends on CMD_TFTPBOOT |
| default y if (ARCH_OMAP2PLUS || ARCH_K3) |
| help |
| By default, TFTP progress bar is increased for each received UDP |
| frame, which can lead into long time being spent for sending |
| data over the UART. Enabling this option, TFTP queries the file |
| size from server, and if supported, limits the progress bar to |
| 50 characters total which fits on single line. |
| |
| config SERVERIP_FROM_PROXYDHCP |
| bool "Get serverip value from Proxy DHCP response" |
| help |
| Allows bootfile config to be fetched from Proxy DHCP server |
| while IP is obtained from main DHCP server. |
| |
| config SERVERIP_FROM_PROXYDHCP_DELAY_MS |
| int "# of additional milliseconds to wait for ProxyDHCP response" |
| default 100 |
| help |
| Amount of additional time to wait for ProxyDHCP response after |
| receiving response from main DHCP server. Has no effect if |
| SERVERIP_FROM_PROXYDHCP is false. |
| |
| config KEEP_SERVERADDR |
| bool "Write the server's MAC address to 'serveraddr'" |
| default y if SANDBOX |
| help |
| Keeps the server's MAC address, in the env 'serveraddr' |
| for passing to bootargs (like Linux's netconsole option). If this is |
| enabled, when an ARP reply is received, the server's IP address is |
| written there. |
| |
| endif # if NET |