Disable WAN when no LAN activity?

Installing and Using OpenWrt Network and Wireless Configuration
1

Hi all,

I am curious if it is possible to disable WAN if there is no activity on LAN for 5 minutes?
Can this be done?
Just want to have this to not have to worry that I get hacked for whatever reason when nobody is home or are sleeping.

2

There is no such thing, so it would have to be a custom script.
Maybe you could count the Rx packets or bits of the lan interface and if they are the same after 5 minute intervals to turn off the wan.

However I am wondering, how will you understand that you have been hacked when you are awake?

3

These days, even more so with WoL and WoWLAN or "cloud based" devices, "no activity on LAN" doesn't really exist anymore.

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4

Some WAN protocols (PPPoE, for example) have an "Inactivity timeout", you might try it.

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