[BlueOnyx:14005] Re: Problem setting interface alias netmask to 255.255.255.255

[Menno Jansz]

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" <info at wisja.net>
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 
>> 
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> 
>    
> 
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