Server IP cannot ping Celerra device

Question

Hi... This issue seems simple enough yet I'm completely stumped. I have several hosts all on the same subnet 10.92.201.x and they can all ping my Celerra appliance with the exception of one server (10.92.201.5). I've had my networking team check and re-check network cables, VLAN settings, etc. and all seems configured properly on the network. Just today we swapped cat5 cabling from a server that can connect with the server that cannot and even with switched cables it was the 201.5 server that still couldn't ping. Is there some sort of Celerra setting that can block a certain IP address? Any help or direction would be greatly appreciated.

bergec · Accepted Answer

Are you using any NIC teaming on that server? By default ip-reflect mode is enab led on thé Data Mover Claude

Rainer_EMC · Answer

it's not the Celerra - you can't block an IP there unless you count routes pointing to nowhere

cie247 · Answer

Thanks Claude! ip_reflect was the issue...this setting was causing intermittent connectivity issues with bonded network cards.  Because I was under the impression that there was only a problem with one server, I wasn't sure if the Celerra was the problem.  Once I determined there were other servers I was unaware of, we disabled the feature. Thanks for your help!

bergec · Answer

There is a Primus solution an that but I need to go back to my laptop to find it (might have to wait until Monday!) Claude

Rainer_EMC · Answer

iPad as well ?

bergec · Answer

The is also a Primus solution on the same topic: emc58050 'Celerra is in the same VLAN as the Server with the teamed network' Claude

Celerra

Was this post helpful?