[BlueOnyx:14008] Re: Problem setting interface alias netmask to 255.255.255.255

[Menno Jansz]

Well they are saying that if I change the alias ips to have netmask
255.255.255.255 then the problem is resolved. But Blueonyx GUI wont let me
set that.

To be honest I have never got my head round the netmask stuff, but they
say they force all their other clients to do this otherwise their routers
get flooded with unnecessary arp who-has requests.

Cheers,
Menno

On Wed, 13 Nov 2013 12:35:06 +0100, "Wisja.net Computers" <info at wisja.net>
wrote:
> Ow wait, now I understand, your IP's are on the same server but are
> not in a range. 
> Then there will probably be no other way then to use the max subnet (and
> that could indeed be a 255.255.255.0) that will cover the needed ip's. 
> 
> Can't you ask for a range of IP's? After all they (provider) are
> complaining about something that is not caused by your own fault. 
> 
> Wisja 
> 
> ON WED, 13 NOV 2013 11:25:27 +0000, MENNO JANSZ WROTE 
>> Hi Wirja, 
>> 
>> I cant do that because my 4 alias ips are not in a range, they are all 
>> very different. 
>> 
>> Cheers, 
>> Menno 
>> 
>> On Wed, 13 Nov 2013 12:05:49 +0100, "Wisja.net Computers"  
>> wrote: 
>> > Depending on how many IP's you have you could change the .0 to 
>> > whatever meets your needs. 
>> > For example, use 255.255.255.240 when you have 16 (14 real usable)
> IP's. 
>> 
>> > There are several online subnet calculators, just type 'subnet 
>> calculator' 
>> > in any search engine to get more info about subnets. 
>> > 
>> > Wisja 
>> > 
>> > ON WED, 13 NOV 2013 10:44:06 +0000, MENNO JANSZ WROTE 
>> >> Hi, 
>> >> 
>> >> I'm having a problem trying to set my interface alias netmask to 
>> >> 255.255.255.255. 
>> >> 
>> >> The GUI complains saying "Sorry, 255.255.255.255 is not a valid 
>> netmask. 
>> >> Please enter a series of four numbers between 0 and 255 separated by

>> >> periods. For example, 255.255.255.0 is a valid entry." 
>> >> 
>> >> My hosting provider has instructed me that my Interface Alias ips,
> what 
>> 
>> >> they call failover ips, are misconfigured because the netmask is 
>> >> 255.255.255.0 and that this is causing unnecessary arp who-has
> requests 
>> > on 
>> >> the network. And they are threatening to block my ip if I dont sort
it
> 
>> in 
>> > 
>> >> the next 24 hours! 
>> >> 
>> >> They have instructed me to set the aliases as follows: 
>> >> 
>> >> DEVICE="eth0:0" 
>> >> ONBOOT="yes" 
>> >> BOOTPROTO="none" 
>> >> IPADDR="IP.FAIL.OVER" 
>> >> NETMASK="255.255.255.255" 
>> >> BROADCAST="IP.FAIL.OVER" 
>> >> 
>> >> Any ideas how I comply with their request? If I just manually edit
the
> 
>> >> etc/sysconfig/network-scripts/ifcfg-eth0:x scripts I assume the GUI 
>> >> sausalito scripts will just overwrite them again? 
>> >> 
>> >> Cheers, 
>> >> Menno 
>> >> 
>> >> _______________________________________________ 
>> >> Blueonyx mailing list 
>> >> Blueonyx at mail.blueonyx.it 
>> >> http://mail.blueonyx.it/mailman/listinfo/blueonyx [1] [1] 
>> > 
>> >     
>> > 
>> > Links: 
>> > ------ 
>> > [1] http://mail.blueonyx.it/mailman/listinfo/blueonyx [2] 
>> _______________________________________________ 
>> Blueonyx mailing list 
>> Blueonyx at mail.blueonyx.it 
>> http://mail.blueonyx.it/mailman/listinfo/blueonyx [3] 
> 
>    
> 
> Links:
> ------
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> [2] http://mail.blueonyx.it/mailman/listinfo/blueonyx
> [3] http://mail.blueonyx.it/mailman/listinfo/blueonyx