why broadcast value are not the same for same command ?

[M E Fieu]

Hi.. I have 2 unix boxes, XXX and YYY.  I issued the same command in the 2 boxes as below for
eth0:0 and I found that the Bcast that I get are different.  Why ?   The correct Bcast should be
10.1.113.63 ?  And also how do I make the eth0:0 to stay after the reboot ?


[root at xxx root]# ifconfig eth0:0 10.1.113.3 netmask 255.255.255.192 up
the result come up as 

eth0:0    Link encap:Ethernet  HWaddr 00:0D:60:9A:1E:20  
          inet addr:10.1.113.3  Bcast:10.255.255.255  Mask:255.255.255.192

Bcast is 10.255.255.255

[root at yyy root]# ifconfig eth0:0 10.1.113.3 netmask 255.255.255.192 up

the result is inet addr:10.1.113.3  Bcast:10.1.113.63  Mask:255.255.255.192



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