Hi Bill

On 28.02.2018 15:18, Bill Yuan wrote:
Hi,

I noticed the default LAN IP is still 192.168.1.1 even after I configured the "preinit network interface" in "preinit configuration options". Can someone please share with me where is the proper way to pre-define the LAN IP?

The build system does not include a way to do this. You can do this by including additional files in your image. To do this, create a directory "files" in the root of the build directory (same directory you run make menuconfig from).

You can either include a full network configuration file in the image, or you can include a script that will execute after the device has booted, which configures the IP address.

For a full configuration, configure the network as you want it to be, then copy /etc/config/network from your OpenWrt device to your files/ folder, so it ends up as: files/etc/config/network.

For a script, here is a snippet of how I do this on my devices. You can omit the if check, I do this so I can use the same script on several devices.

--8<--
#!/bin/sh

if [ "$(ip link show eth0 | awk '/ether/ {print $2}')" == "11:22:33:44:55:66" -a "$(uci -q get network.lan.ipaddr)" == "192.168.1.1" ]
then
        uci -q set network.lan.ipaddr='10.123.234.1'
fi

/etc/init.d/network restart
-->8--

Put this in files/etc/uci-defaults/zz_changeip4.sh. The zz prefix ensures the file is executed last in the uci-defaults folder, if it executes too early the base network config may not be in place yet.

Regards,
bycn82

Regards
/Magnus
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