[OmniOS-discuss] sudden loss of networking

[Michael Mounteney]

On Mon, 22 Dec 2014 21:27:00 -0500
Dan McDonald <danmcd at omniti.com> wrote:

> Lots of possibilities when you "lose networking".  Lots of
> information helps tell what happened.
> 
> Output of these commands:
> 	- ifconfig -a
> 	- dladm show-link
> 	- dladm show-phys
> 	- dladm show-ether
> 	- netstat -rnv

Thanks Dan;  I've saved those commands in a script which hopefully I'll
be able to run if it happens again, via the serial port.

> Also, make sure you didn't lose routing, as opposed to losing the
> link.  See if a node on the same subnet can ping it (you said it
> wasn't pingable, but where did you ping from?).

I was pinging from a machine on the same subnet;  it's just a simple
home setup here with two interfaces:  one connected to the ISP's cable
modem and the other to a hub/router and all the other machines, on the
192.168.1.0/24 subnet.

> Someone recently here mentioned having two default routes installed
> because in.routed got fed bad information, for example.

Maybe the diagnostics will reveal this to be the cause.

Michael.