Hi!

I need to change the LAN configuration dynamically, without restarting the system. This is not a problem, but it is very important, that the connected clients detects this change (typically DHCP clients, I change the LAN IP range) and request a  new IP address from the new pool. I tought, that I stop the LAN ports for 5-10 secs (I set it to down), but I cannot make this:

root@OpenWrt:/root# swconfig dev switch0 port 2 get link
port:2 link:up speed:100baseT full-duplex auto

root@OpenWrt:/root# swconfig dev switch0 port 2 set link down
failed

What I am doing wrong? I need this functionality on a TP-Link TL-WDR3600 model. Turning off and on the whole switch is a good solution too, because I run this in a shell script.

Thanks,

vargalex

Have you found an answer ?

you dont quite need to bring switch down

and all is restarted.. wan lan wifi

or if you want a bigger brake

(Last edited by makarel on 12 Sep 2015, 21:59)

Tks makarel, but what i need is  a way to bring down the LAN port 4 (Used as WAN2).
The cable modem will only deliver a NEW IP address via DHCP if the port is down for a few seconds.
Even if i release the IP and try to get another, it will send the same.

try this..

disable: swconfig dev switch0 port 4 set disable 1
enable: swconfig dev switch0 port 4 set disable 0

ps: be sure you can safemode or ttl before changing network setings

(Last edited by makarel on 13 Sep 2015, 00:01)