On 02/08/2012 17:52, Johnny Hughes wrote:
> On 08/02/2012 09:33 AM, Birta Levente wrote:
>> On 02/08/2012 17:24, Johnny Hughes wrote:
>>> On 08/02/2012 09:00 AM, Birta Levente wrote:
>>>> Hi all
>>>>
>>>> Can someone explain me this:
>>>>
>>>> ifcfg-eth0-range1:
>>>> ONBOOT="yes"
>>>> IPADDR_START="192.168.1.48"
>>>> IPADDR_END="192.168.1.55"
>>>> CLONENUM_START="1"
>>>>
>>>> Why Bcast is 192.168.1.51 and why Mask is 255.255.255.252 ?
>>>>
>>>> OS: Centos 6.3/64bit
>>>>
>>>>
>>>> Thanks
>>>>
>>>> Levi
>>>>
>>>> # ifconfig
>>>>
>>>> eth0:1 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00
>>>> inet addr:192.168.1.48 Bcast:192.168.1.51 Mask:255.255.255.252
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:16 Memory:fbee0000-fbf00000
>>>>
>>>> eth0:2 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00
>>>> inet addr:192.168.1.49 Bcast:192.168.1.51 Mask:255.255.255.252
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:16 Memory:fbee0000-fbf00000
>>>>
>>>> eth0:3 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00
>>>> inet addr:192.168.1.50 Bcast:192.168.1.51 Mask:255.255.255.252
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:16 Memory:fbee0000-fbf00000
>>>>
>>>> eth0:4 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00
>>>> inet addr:192.168.1.51 Bcast:192.168.1.51 Mask:255.255.255.252
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:16 Memory:fbee0000-fbf00000
>>>>
>>>> eth0:5 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00
>>>> inet addr:192.168.1.52 Bcast:192.168.1.51 Mask:255.255.255.252
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:16 Memory:fbee0000-fbf00000
>>>>
>>>> eth0:6 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00
>>>> inet addr:192.168.1.53 Bcast:192.168.1.51 Mask:255.255.255.252
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:16 Memory:fbee0000-fbf00000
>>>>
>>>> eth0:7 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00
>>>> inet addr:192.168.1.54 Bcast:192.168.1.51 Mask:255.255.255.252
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:16 Memory:fbee0000-fbf00000
>>>>
>>>> eth0:8 Link encap:Ethernet HWaddr 00:9C:02:99:FA:00
>>>> inet addr:192.168.1.55 Bcast:192.168.1.51 Mask:255.255.255.252
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> Interrupt:16 Memory:fbee0000-fbf00000
>>> That is obviously not going to work ... a 255.255.255.252 mask is a 4 IP
>>> subnet, with only 2 usable addresses and a network number and a
>>> broadcast address. The only free addresses in
>>> 192.168.1.48/255.255.255.252 are .49 and .50
>>>
>>> The Broadcast and Mask settings are likely in your ifcfg-eth0 file and
>>> not in the range file at all.
>>>
>>> The Mask would either be set manually in ifcfg-eth0 ... or by the DHCP
>>> server if you get DHCP. The Broadcast address would automatically be set
>>> based on the Mask, unless it is overridden in ifcfg-eth0.
>>>
>>> If the address is set via DHCP, you need to change the subnet mask on
>>> the DHCP server as that is where it comes from.
>>>
>>> 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
>>>
>>> Since this is on a private network, why are you not just using the full
>>> 192.168.1.0 network with a 255.255.255.0 subnet?
>>>
>>> I guess the real question is, what are you trying to do
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> CentOS mailing list
>>> CentOS@centos.org
>>> http://lists.centos.org/mailman/listinfo/centos
>>>
>> I have eth0 with public IP, netmask is 255.255.255.252.
>> Additionally I own 8 public IPs xxx.xxx.xxx.48-55 with class subnet mask
>> 255.255.255.248
>>
>> If I set up with ifconfig eth
0 to 7) xxx.xxx.xxx.(48-55) netmask
>> 255.255.255.255 it's work.
>>
>> But if I set up the ifcfg-eth0
0-7) files with the same IP and netmask
>> it's not work. ifconfig show me the 255.255.255.252 netmask even if in
>> file other netmask is specified.
>> The same situation in ifcfg-eth0-range1 case.
>
> What if you do this:
>
> ifcfg-eth0-range1:
> ONBOOT="yes"
> IPADDR_START="192.168.1.49"
> IPADDR_END="192.168.1.54"
> CLONENUM_START="1"
> BROADCAST=192.168.1.55
> NETMASK=255.255.255.248
> NETWORK=192.168.1.48
>
> (with a .248 subnet, you can not use the first address (192.168.1.48) or
> the last address (192.168.1.55) on a device, they are the Network
> Address and the Broadcast Address ... so an 8 IP subnet has 6 usable
> addresses. Also, one of those 6 addresses will also need to be assigned
> to the gateway router if you need to talk to another network, so you
> really only have 5 addresses that you can assign for use).
>
>
>
>
> _______________________________________________
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos
>
Nope....
Work only .49 and .50
I bought 8 public IP-s ... so 8 IPs have to get work.
In the hosting specification this IPs is usable with xxx.xxx.xxx.48-55
with subnet mask 255.255.255.255 with no gateway.
As I sad, works perfectly with this command (8 times, of course
):
#ifconfig eth
0 to 7) xxx.xxx.xxx.(48-55) netmask 255.255.255.255
Thanks
Levi
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Subject: Re: problem printing on Canon mp250
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Dear garyk<div><br></div><div>I don't know what architecture are you us=
ing of Ubuntu 12.04 (32bit or 64bit). Though, please try the following afte=
r removing your current driver installation and the printer.</div><div><br>
</div><div><pre style=3D"margin-top:0px;margin-bottom:10px;padding-top:5px;=
padding-right:5px;padding-bottom:5px;padding-left:5px;border-top-width:0px;=
border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border=
-style:initial;border-color:initial;font-size:14px;vertical-align:baseline;=
background-color:rgb(224,224,224);overflow-x:auto;overflow-y:auto;width:aut=
o;max-height:600px;font-family:'Ubuntu Mono','Ubuntu Beta Mono =
A',Consolas,'Bitstream Vera Sans Mono','Courier New',Co=
urier,monospace;color:rgb(51,51,51);line-height:17px;text-align:left">
<code style=3D"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-lef=
t:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px=
;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border=
-left-width:0px;border-style:initial;border-color:initial;vertical-align:ba=
seline;font-family:'Ubuntu Mono','Ubuntu Beta Mono A',Conso=
las,'Bitstream Vera Sans Mono','Courier New',Courier,monosp=
ace;color:rgb(34,34,34)">sudo add-apt-repository ppa:michael-gruz/canon-tru=
nk
sudo apt-get update
sudo apt-get install cnijfilter-common</code></pre></div><div><br></div><di=
v>Plz let us know if this=C2=A0solves your problem.=C2=A0</div><div><br></d=
iv><div>With regards</div><div>-- <br>=E0=A6=B0=E0=A6=BF=E0=A6=82/ring<br>+=
8801671411437<br><br>=E0=A6=AE=E0=A6=B9=E0=A6=BE=E 0=A6=B8=E0=A6=9A=E0=A6=BF=
=E0=A6=AC/General Secretary<br>
=E0=A6=AB=E0=A6=BE=E0=A6=89=E0=A6=A8=E0=A7=8D=E0=A 6=A1=E0=A7=87=E0=A6=B6=E0=
=A6=A8 =E0=A6=AB=E0=A6=B0 =E0=A6=93=E0=A6=AA=E0=A7=87=E0=A6=A8 =E0=A6=B8=E0=
=A7=8B=E0=A6=B0=E0=A7=8D=E0=A6=B8 =E0=A6=B8=E0=A6=B2=E0=A6=BF=E0=A6=89=E0=
=A6=B6=E0=A6=A8=E0=A6=B8 =E0=A6=AC=E0=A6=BE=E0=A6=82=E0=A6=B2=E0=A6=BE=E0=
=A6=A6=E0=A7=87=E0=A6=B6/Foundation for Open Source Solutions Bangladesh.<b=
r>
</div>
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