On Tue, 10 Apr 2012, Mike Connors wrote:

> ... I suspect there is a problem in the interaction between the NIC driver
> and your chosen net mgmt. software. Is WICD a native app to slackware? If
> not, is there a native net mgmt. app? If there's not a native net mgmt app
> is there another net mgmt app you can do some testing with? Or perhaps
> just uninstall WICD and then test connectivity to a WAP via command line?

Mike,

   A) I suppose that wicd is 'native' to Slackware.

   B) There's nothing else in the distribution, but slackbuilds.org provides
the build scripts for network-manager-applet and NetworkManager. I can
download and install those on the Sony for a try.

   C) I've used wpa_supplicant and dhcpcd from the command line. I seem to
recall that they, too, connect to the WAP but do not drop eth0 from the
routing table.

   D) It's not connectivity to the WAP that's the problem, it's accessing the
'Net (directly or via a T&C Web page first) that fails because the packets
apparently insist on forcing themselves on the non-running eth0 and there's
no cable to move them along. So they die.

> Even though we know what's happening, we don't know the root cause as to
> why it's happening.

   Correct.

> Do you have a static ip config for eth0 on your Dell?

   Yep. The only differences in the network configuration files are the last
(host) digits of the local IP address and where the gateway address is
found. I moved the latter from a generic default position on the Sony to be
part of the eth0 stanza.

> Have you tried removing the static ip config for eth0 on the Sony and test
> WAP connectivity?

   Yep. If I manually (as root) issue 'ifconfig eth0 down' everything works.
What I need to do is automate this for the Sony's user.

> The bottom line here is that a statically configured eth0 that is not
> connected and not in a running state should not be the preferred default
> gateway. Something is hosing up the logic there.

   That's it. As I wrote, eth0 should be shut down when wlan0 comes up but it
doesn't.

Thanks,

Rich

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