Commit 3b3ea2c56ec4bc5 ("Kconfig: cmd: Make networking command dependent on 
removed the help documentation from the README but didn't add it back to 

Signed-off-by: Joe Hershberger <>
Reviewed-by: Chris Packham <>
Reviewed-by: Duncan Hare <>

Changes in v2: None

 cmd/Kconfig | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/cmd/Kconfig b/cmd/Kconfig
index 6664379..43efe7d 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1056,6 +1056,17 @@ config BOOTP_DNS
          returned, you must set BOOTP_DNS2 to store that second server IP
+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.
        bool "Request & store 'gatewayip' from BOOTP/DHCP server"
        depends on CMD_BOOTP

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