Commit 1ebcd654 authored by Wolfgang Denk's avatar Wolfgang Denk

README: improve documentation of network related CONFIG_ settings

Add documentation for CONFIG_GATEWAYIP and CONFIG_NETMASK;
also add information which environment variables are set.
Signed-off-by: Wolfgang Denk's avatarWolfgang Denk <wd@denx.de>
Acked-by: Simon Glass's avatarSimon Glass <sjg@chromium.org>
parent c0f40859
......@@ -1432,18 +1432,37 @@ The following options need to be configured:
Define a default value for the IP address to use for
the default Ethernet interface, in case this is not
determined through e.g. bootp.
(Environment variable "ipaddr")
- Server IP address:
CONFIG_SERVERIP
Defines a default value for the IP address of a TFTP
server to contact when using the "tftboot" command.
(Environment variable "serverip")
CONFIG_KEEP_SERVERADDR
Keeps the server's MAC address, in the env 'serveraddr'
for passing to bootargs (like Linux's netconsole option)
- Gateway IP address:
CONFIG_GATEWAYIP
Defines a default value for the IP address of the
default router where packets to other networks are
sent to.
(Environment variable "gatewayip")
- Subnet mask:
CONFIG_NETMASK
Defines a default value for the subnet mask (or
routing prefix) which is used to determine if an IP
address belongs to the local subnet or needs to be
forwarded through a router.
(Environment variable "netmask")
- Multicast TFTP Mode:
CONFIG_MCAST_TFTP
......
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