[ltp] Question on ifplugd and ACPI suspend

[Lenz Grimmer]

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Hi,

Bob Alexander wrote:

> I like ifplugd which monitors my eth0 and brings up/down the interface
> if its plugged/unplugged.
> 
> There is one case which is not working though.
> 
> 1) Interface is up and running at home with address A
> 2) I suspend
> 3) Plug into my office LAN
> 4) Address remains A

Correct, as ifplugd never notices the link went down.

> At this point if I manually unplug the cable and then plug back in
> ifplugd correctly intervenes and assigns address B to eth0.
>
> Can I force ifplugd to check things after a suspend (using swsusp2).

An easy workaround would be to unplug the LAN cable supending the
Laptop. You may also be able to send the daemon a signal upon
suspend/resume. According to the man page:

SIGNALS
       SIGUSR1 ifplugd will go to suspend mode. (-S)

       SIGUSR2 ifplugd will resume from suspend mode. (-R)

Hope that helps!

Bye,
	LenZ
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 Lenz Grimmer <lenz@grimmer.com>                             -o)
 [ICQ: 160767607 | Jabber: LenZGr@jabber.org]                /\\
 http://www.lenzg.org/                                       V_V
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