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net: Add the BOOTP_DNS2 option to Kconfig

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Commit 3b3ea2c56e ("Kconfig: cmd: Make networking command dependent on NET")
removed the help documentation from the README but didn't add it back to Kconfig.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Duncan Hare <dh@synoia.com>
This commit is contained in:
Joe Hershberger 2018-04-13 15:26:35 -05:00
parent 8df69d9063
commit 80449c032c
1 changed files with 11 additions and 0 deletions
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11
cmd/Kconfig
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@ -1056,6 +1056,17 @@ config BOOTP_DNS
returned, you must set BOOTP_DNS2 to store that second server IP
also.
config BOOTP_DNS2
bool "Store 'dnsip2' from BOOTP/DHCP server"
depends on BOOTP_DNS
help
If a DHCP client requests the DNS server IP from a DHCP server,
it is possible that more than one DNS serverip is offered to the
client. If CONFIG_BOOTP_DNS2 is enabled, the secondary DNS
server IP will be stored in the additional environment
variable "dnsip2". The first DNS serverip is always
stored in the variable "dnsip", when BOOTP_DNS is defined.
config BOOTP_GATEWAY
bool "Request & store 'gatewayip' from BOOTP/DHCP server"
depends on CMD_BOOTP