WTH is up with this network config?

[Tom H]

On Wed, Apr 28, 2010 at 7:15 PM, jack craig <jcraig at extraview.com> wrote:
> When I learned about ip address, the network & host portions of the IP and
> the netmask to
> differentiate the host & network numbers. I learned a class A addr used
> a mask of 10.255.255.255.
>
> While my FC11 works fine, I was looking at this network config and found the
> below!!!
>
> eth0      Link encap:Ethernet  HWaddr 00:26:18:FE:75:91
>           inet addr:10.0.0.100  Bcast:11.255.255.255  Mask:254.0.0.0
>           inet6 addr: fe80::226:18ff:fefe:7591/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:8291136 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:8464483 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:8084873362 (7.5 GiB)  TX bytes:8107599565 (7.5 GiB)
>           Interrupt:35
>
> cat ./devices/ifcfg-eth0
> # Networking Interface
> DEVICE=eth0
> BOOTPROTO=static
> DNS1=10.0.0.199
> GATEWAY=10.0.0.129
> HWADDR=00:26:18:FE:75:91
> IPADDR=10.0.0.100
> NETMASK=10.0.0.255
> ONBOOT=yes
>
> My question, if the ifcfg-eth0 has the right IP & Mask, why does the
> ifconfig display not agree?
> More, why does it work as is ???!!!

No idea how/why it works but your netmask is incorrect and must be the
reason for the incorrect broadcast and mask values in your ifconfig
output.