On 08/03/2012 12:20 PM, Birta Levente wrote:
> On 02/08/2012 22:54, John R Pierce wrote:
>> On 08/02/12 12:45 PM, Scott Silva wrote:
>>> It doesn't work that way... You may think you bought 8 ip's, but you can only
>>> pass traffic on 6... That is how it works... You buy 16, and only 14 work. The
>>> first and last address are as Johnny said...
>>
>> I've also seen DSL networks like this where those extra IPs are bridged
>> not routed. in these cases, you use the same gateway as the 'main' IP,
>> but usually the main IP has a /24 or whatever mask that encompasses ALL
>> the IPs.
>>
>> regardless, the OP should contact the ISP and find out what the mask and
>> gateway are for the extra IPs.
>>
>>
> It's a bug in centos 6
>
> http://bugs.centos.org/view.php?id=5391
>
> PREFIX configured in ifcfg-eth0 is overrule the subnet mask in aliases.
>
> Solution: removed PREFIX from ifcfg-eth0
>

I'm not surprised and I'm really beginning to develop an abject hate for
all things networking in Fedora/RHEL land. I's kludges upon kludges to
accommodate new ways of doing things while keeping backwards compatibility
within a framework of stitched together shell scripts.

Regards,
Dennis

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[For the archives, since I think Johnny just hit the wrong number key.....]

On Thursday, August 02, 2012 10:24:27 AM Johnny Hughes wrote:
> If you want 8 usable addresses (including the Network number, a gateway
> address, and a Broadcast address), that would mean you need at least 11
> IPs in that subnet ... the closest fit would be a 255.255.255.240 subnet
> (which has 16 addresses). If you were to want to use th 255.255.255.240
> subnet, then 192.168.1.48 would not be available as it would the the
> Network number for that subnet ... the usable addresses would be
> 192.168.1.49-63 that case and the Broadcast Address would be 192.168.1.64

192.168.1.63 would be the correct broadcast address; .64 would be the network address of the next subnet.
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On 08/03/2012 08:54 AM, Lamar Owen wrote:
> [For the archives, since I think Johnny just hit the wrong number key.....]
>
> On Thursday, August 02, 2012 10:24:27 AM Johnny Hughes wrote:
>> If you want 8 usable addresses (including the Network number, a gateway
>> address, and a Broadcast address), that would mean you need at least 11
>> IPs in that subnet ... the closest fit would be a 255.255.255.240 subnet
>> (which has 16 addresses). If you were to want to use th 255.255.255.240
>> subnet, then 192.168.1.48 would not be available as it would the the
>> Network number for that subnet ... the usable addresses would be
>> 192.168.1.49-63 that case and the Broadcast Address would be 192.168.1.64
> 192.168.1.63 would be the correct broadcast address; .64 would be the network address of the next subnet.

Indeed ... Thanks Lamar :-)

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