Re: tcpip adapter configuration question on an Aix 4.3.3 server

Not having an a cable plugged in doesnt really change anything. Network
packets follow the routing table of your machine.

My first instinct would be to say that your default route changed
because of you enabling a second interface but that doesnt seem to
follow the behaviour of AIX at all.

Did you put an IP address on the new interface on the same network as your
primary adapter? This would explain the behaviour. What you
actually did then was probably to send all packets to the unattached adapter.

netstat -rn shows your current routes.

Please learn how IP works on a non production machine.

-km

On 26/10, Mark Schlechte wrote:

I have a server with 2 ethernet adapters on it.

One is a Gigabit adapter with an assigned ip_adresss and up communicating.

Today I wanted to enable a 2nd interface (10/100) as we wanted to use it to
isolate some traffic on just that adapter.

As soon as I provided it with an ip_address and brought it up my server
stopped communicating on the primary adapter even though I didn't even have
a UTP cable plugged into the second adapter.

I ended up doing an 'rmdev -dl en1' to get rid of the 2nd adapter I'd
enabled and it finally brought things back to the way it was.

So my question is what did I do wrong? When I review what I'd entered I see
I'd used the wrong netmask so could that have been the cuplrit?

I thought I'd be safe by not having anything plugged in but I guess not.

I'll have to try this again and I'm not sure now how to properly setup a 2nd
interface on the same subnet with a different ip_address.

MS

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