If you are using OVH dedicated web hosting then you might get the following e-mail for bad configuration.
What they dont’ tell straight away is that you have to change the netmask. I’ve IP failover and I get such e-mails quite often.
The solution is to change the Netmask to be 255.255.255.255 and it will fix the problem.
Basically if you have bought IP Failovers from OVH and split it then you have to use 255.255.255.255, this is rule of thumb. If you use any other netmask then your IP might work but this is not correct settings.
I’ve written this post on how to change netmask which might be useful for you.
We have detected that your server ns1234.ovh.net unnecessarily sending
a large number of requests over the network via its IP failover 220.127.116.11
This is due to a misconfiguration.
We ask you kindly to reconfigure the IP failover
18.104.22.168 as soon as possible.
You can use the following guide to help you with the reconfiguration:
You will find below a sample of queries sent by your server:
——- EXTRACT OF REQUESTS ——-
Wed Nov 9 13:37:16 2011 : arp who-has … tell …
——- END OF EXTRACT ——-
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