Re: [Devil-linux-develop] Ethernet Link Detection

[Heiko Z. <he...@zu...>]

Frischknecht Peter wrote:
> Does anybody have interest in automatic link detection.
> 
> The idea is to be able to run scripts based on the link state of the card.
> 
> This project:
> http://0pointer.de/lennart/projects/ifplugd/
> 
> It was originally designed for laptops, but we could use it as well.  I 
> have already played with it, it works well. 
> 
> Why do I need it? (or want it)
> Let's say we are perfiorming an upgrade of some kind to the network.  
> Instead of getting harassing phone calls from users, we simply unplug 
> the WAN side of the DL router.  Ifplugd will fire up a script that 
> blocks all traffic and redirects WWW to a local web server in the DL box 
> itself (say on port 8080).
> Example:
> iptables -t nat -I PREROUTING -i (LAN interface) -p tcp --dport 80 -j 
> REDIRECT --to-port 8080.
> The users will now see a page that says: "Sorry for the trouble...we 
> will be back up in a little bit.  Go watch TV."
> 
> When we plug the WAN port back in, ifplugd automagically removes the 
> iptables entries and life is good.
> Neat?
> 
> Who is interested?
> 

I think it's a nice feature.

I added it to the feature requests, but it won't make it into 1.2 anymore.

Heiko