OK,
Here's my stab at this. I think that maybe there is a bit of a terminology
problem here. I suspect that what you mean is that 209.225.148.192 is the
"network" not the "mask" IF this is the case then the mask is PROBABLY
255.255.255.192. If this is what you mean then the following is the case:
Network 209.225.148.192
Subnet Mask 255.255.255.192
First Address 209.225.148.193 - possibly the default gateway?
User Addresses 209.225.148.194 - 209.225.148.254
Broadcast Address 209.225.148.255
The fourth octet breaks out this way:
128 64 32 16 8 4 2 1
--------------------------------------------------------------------
Mask 192
1 1 0 0 0 0 0 0
First Address 193
1 1 0 0 0 0 0 1
Last Address 254
1 1 1 1 1 1 1 0
Broadcast Address 255
1 1 1 1 1 1 1 1
Just my 2c
Nathan
-----Original Message-----
From: GGLEGHORN [mailto:GGLEGHORN@xxxxxxxxx]
Sent: Thursday, September 27, 2001 10:15 AM
To: ccielab@xxxxxxxxxxxxxx
Subject: Is this possible
I have a friend who works for a small company part-time, they have a gateway
provided by there ISP that uses 209.225.148.193 for the IP and
209.225.148.192 for the mask all of the end users have address from
.194-253, how is this possible, because if your mask is .192 would not that
just provide you with .0, .64, .128 and .192, how is that you can use
address from .192 to .256?
Gregory D. Gleghorn
Network Administrator
CNE4, CNE5, MCP+I, MCSE, CCNA, CCNP
BTG/RPI
703-245-2569
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