On Fri, 2003-11-14 at 20:14, Kwan Lowe wrote:
>
> >
> > On Fri, Nov 14, 2003 at 12:51:31PM -0600, Aaron Konstam wrote:
> >> The network programs on out FC1 machine is calculating the wrong
> >> broadcast address. For a machine with ip: 131.194.131.27 and
> >> netmask: 255.255.192.0 the broadcast address should
> >> be: 131.194.191.255
> >>
> >> However, running ifconfig eth0 I get Bcast:255.255.191.255
> >>
> >> This causes problems with commands that do broadcasts.
> >>
> >> Can anyone comment on this or indicate a cure for this error.
> >> --
> > I have a perfect record. Three postings about problems with yarrow
> > and no one has an answer. Could some one look if their broadcast
> > address is reported correctly wqhen you run:
> > ifconfig eth0
> > and let me know so at least I would
> > know it is possible even if I don't know how to make my system do it.
> > Obviously I don't want several hundred responses so we can stop
> > after 2 or 3.
>
>
> [root@phi root]# ifconfig -a
> eth0 Link encap:Ethernet HWaddr 00:0C:29:84:7E:25
> inet addr:192.168.8.32 Bcast:192.168.8.255 Mask:255.255.255.
> [..]
>
> [root@phi root]# ifconfig eth0 131.194.131.27 netmask 255.255.192.0
> [root@phi root]# ifconfig -a
> eth0 Link encap:Ethernet HWaddr 00:0C:29:84:7E:25
> inet addr:131.194.131.27 Bcast:131.194.255.255 Mask:255.255.192.0
> [..]
>
does the same here
I would bugzilla this fast. I wonder if the probs some folks are having
is caused by this sort of thing.
There may be some reason this is ont working but I do not know what it
is
[root@test1 root]# ifconfig eth0:1 131.194.131.27 netmask 255.255.192.0
[root@test1 root]# ifconfig eth0:1
eth0:1 Link encap:Ethernet HWaddr 00:30:84:3E:96:59
inet addr:131.194.131.27 Bcast:131.194.255.255
Mask:255.255.192.0
UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
Interrupt:10 Base address:0x9f00
for reference:
[bhughes@bretsony bin]$ ipcalc.pl 131.194.131.27 255.255.192.0
Address: 131.194.131.27 10000011.11000010.10 000011.00011011
Netmask: 255.255.192.0 = 18 11111111.11111111.11 000000.00000000
Wildcard: 0.0.63.255 00000000.00000000.00 111111.11111111
=>
Network: 131.194.128.0/18 10000011.11000010.10 000000.00000000
(Class B)
Broadcast: 131.194.191.255 10000011.11000010.10 111111.11111111
HostMin: 131.194.128.1 10000011.11000010.10 000000.00000001
HostMax: 131.194.191.254 10000011.11000010.10 111111.11111110
Hosts/Net: 16382
Bret
