On 12-Jul-2001 Darcy Brodie wrote:
> I have added the additional nic into the firewall / masqurading machine, and
> configured it to 192.168.1.128/255.255.255.128
> I can ping the address from the 100mhz network(both from the server, and from
> remote workstations). However, I connected a workstation to the new nic
> card (eth2) through a 10mhz hub, and I can not ping either the eth2 card from
> the remote 10mhz workstation, or the remote workstation from the server. I
> have verified that the hub and the cables are working. I have even used a
> cross over cable from the workstation to the server, but I still can not ping
> the eth2 card
>
> Darcy
The Address 192.168.1.128 is the adress of your SUBNET. It't the same as if you
would use the 192.168.1.0 address with the 255.255.255.0 network which also
doesn't work. Use 192.168.1.129 up to .254 instead. On the other subnet you can
use 192.168.1.1 to .126
Reason.
On seach subnetwork you have two addresses which CANNOT be used for Interfaces
(nodes) these are the network adrress (like 192.168.1.0 in Class C) and the
broadcast adrress (192.168.1.255 for Class C). The network adress specifies the
network (necesarry for routing issues) and if you send something to the
broadcast address all hosts in this subnet will be addressed.
This address are calculated from the subnetmask:
192.168.1.xxx & 255.255.255.0 will give you 192.168.1.0 (this is the network
adress).
192.168.1.0 to .127 & 255.255.255.128 will give you 192.168.1.0
(your network address). With .127 as the last address in this net as broadcast
192.168.1.128 to .255 & 255.255.255.128 will give you 192.168.1.128 (again
your network address) with 255 as your broadcast.
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E-Mail: Gregor Maier <[EMAIL PROTECTED]>
Date: 12-Jul-2001
Time: 09:09:58
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