Netowrking Issue

[prutter]

For some reason all of the sudden my server in the DMZcan no longer get internet access.  swapped switches and doublechecked the firewall settings.  The nic is connected on the VM with the same IP it had for past 4 months.  When i look at teh properties of the network adapter on the virtual switch that it's on, it says NONE for Observed IP range.  The nic says connected and speed is 1000FD.  Any idea where to look for the connection issue??  Any help is appreciated.  Thanks

[firestartah]

Hi

It sounds like a physical switching problem rather than something related to your virtual environment in my opinion. Maybe get your networking guy to check that the correct links are working and up between your server and the internet.

Gregg

[prutter]

After all the troubleshooting yesterday i would tend tobelieve that so i swapped teh switch this morning adn still no luck.

[firestartah · Accepted solution]

Hi

Try esxtop to the affected server and make sure traffic is coming down the network ports correctly as the showing of none can happen if EtherChannelling has been configured incorrectly

Gregg

[BharatR]

Hi,

Can u Confirm the hardware physically which is connected eg (Switch,Server)

[kjb007]

May seem strange, but have you verified layer 2 / layer 3 connectivity?  Can you ping other vm's in the same subnet, and can you ping the gateway that supports that subnet?

-KjB

[prutter]

Very odd behavior.  I tried a third switch and got it to work. I finished reinstalling my View Security server and completed that.  Made sure that it was all working then i had to plug the old switch back in so that the other server on that switch was active adn now they all work.  I tried rebootind that switch many times.  The only thing i didn;t do wsa unplug all the ports.  Nothing else was done.  It's back to the way it was.  I'm at a loss!!  Thanks for the help guys.

[srnhpp]

                               

How it works in third switch why not second switch.

Thant means your second switch was faulty and first one as well?

Have you find any other problem on your network. It may happens that you will go through this type of problem again. So you have to look carefully.

[prutter]

The way it sits right now is that my Security server is back on the original switch. (switch1).  That's why i am puzzled.