# # 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. config UDP_CHECKSUM bool "Check the UDP checksum" default y if SANDBOX help Enable this to verify the checksum on UDP packets. If the checksum is wrong then the packet is discussed and an error is shown, like "UDP wrong checksum 29374a23 30ff3826" endif # if NET