subnetting for a class A ip address

Hello All,
I would like to know what valid Ip addresses can I get once I subnet a Class
A ip address
First..This network will compose of six segments/subnets:
Net ID:43.0.0.0
Default SubMAsk:255.0.0.0
Netmask:255.224.0.0
After calculating for subnets, I find that I can have subnet Id in
increments of 32
Now my Question:
Can the first subnet have a subnet id of 2, ie 43.2.0.1 or 43.2.1.1 (are
these valid IP addresses?)
or do I start after the increment of 32, ie 43.33.1.1
At this point how do I know what is a valid ip addressing scheme for the
host IDs?
Thanks,
Altria

This is what you get with that mask:

Subnet ID: Usable Host Range
Broadcast
#1 43.0.0.0 43.0.0.1---43.31.255.254
43.31.255.255
#2 43.32.0.0 43.32.0.1---43.63.255.254 43.63.255.255
#3 43.64.0.0 43.64.0.1---43.95.255.254 43.95.255.255
#4 43.96.0.0 43.96.0.1---43.127.255.254 43.127.255.255
#5 43.128.0.0 43.128.0.1---43.159.255.254 43.159.255.255
#6 43.160.0.0 43.160.0.1---43.191.255.254 43.191.255.255
#7 43.192.0.0 43.192.0.1---43.223.255.254 43.223.255.255
#8 43.224.0.0 <Can't be used,..contains master broadcast
address>

Why are you subnetting a Public class "A" address? Do you actually own it?
According to ARINS it is currently owned by "Japan Inet". Never use
addresses that you don't own or have assigned to you by an ISP. Private
networks should use one of the three RFC specified Private address blocks
designated for Private Networks:

Class A: 10.0.0.0 - 10.255.255.255
Class B: 172.16.0.0 - 172.31.255.255
Class C: 192.168.0.0 - 192.168.255.255


--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com


"Altria" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hello All,
> I would like to know what valid Ip addresses can I get once I subnet a
Class
> A ip address
> First..This network will compose of six segments/subnets:
> Net ID:43.0.0.0
> Default SubMAsk:255.0.0.0
> Netmask:255.224.0.0
> After calculating for subnets, I find that I can have subnet Id in
> increments of 32
> Now my Question:
> Can the first subnet have a subnet id of 2, ie 43.2.0.1 or 43.2.1.1 (are
> these valid IP addresses?)
> or do I start after the increment of 32, ie 43.33.1.1
> At this point how do I know what is a valid ip addressing scheme for the
> host IDs?
> Thanks,
> Altria
>
>
>

Thanks Philip,
So 43.0.0.1 would actually be a valid IP address? What would the subnet ID
be in this case?
Suppose, I used 43.2.0.1, Is this valid for lets say a router?
I am not plaaning this for deployment, I want to know simply out of
curiosity how would this work for Class A ip addresses?
Thanx,
Altria
"Phillip Windell" <@.> wrote in message
news:(E-Mail Removed)...
> This is what you get with that mask:
>
> Subnet ID: Usable Host Range
> Broadcast
> #1 43.0.0.0 43.0.0.1---43.31.255.254
> 43.31.255.255
> #2 43.32.0.0 43.32.0.1---43.63.255.254
43.63.255.255
> #3 43.64.0.0 43.64.0.1---43.95.255.254
43.95.255.255
> #4 43.96.0.0 43.96.0.1---43.127.255.254
43.127.255.255
> #5 43.128.0.0 43.128.0.1---43.159.255.254 43.159.255.255
> #6 43.160.0.0 43.160.0.1---43.191.255.254 43.191.255.255
> #7 43.192.0.0 43.192.0.1---43.223.255.254 43.223.255.255
> #8 43.224.0.0 <Can't be used,..contains master broadcast
> address>
>
> Why are you subnetting a Public class "A" address? Do you actually own
it?
> According to ARINS it is currently owned by "Japan Inet". Never use
> addresses that you don't own or have assigned to you by an ISP. Private
> networks should use one of the three RFC specified Private address blocks
> designated for Private Networks:
>
> Class A: 10.0.0.0 - 10.255.255.255
> Class B: 172.16.0.0 - 172.31.255.255
> Class C: 192.168.0.0 - 192.168.255.255
>
>
> --
>
> Phillip Windell [MCP, MVP, CCNA]
> www.wandtv.com
>
>
> "Altria" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
> > Hello All,
> > I would like to know what valid Ip addresses can I get once I subnet a
> Class
> > A ip address
> > First..This network will compose of six segments/subnets:
> > Net ID:43.0.0.0
> > Default SubMAsk:255.0.0.0
> > Netmask:255.224.0.0
> > After calculating for subnets, I find that I can have subnet Id in
> > increments of 32
> > Now my Question:
> > Can the first subnet have a subnet id of 2, ie 43.2.0.1 or 43.2.1.1 (are
> > these valid IP addresses?)
> > or do I start after the increment of 32, ie 43.33.1.1
> > At this point how do I know what is a valid ip addressing scheme for the
> > host IDs?
> > Thanks,
> > Altria
> >
> >
> >
>
>

"Altria" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Thanks Philip,
> So 43.0.0.1 would actually be a valid IP address?
> Suppose, I used 43.2.0.1, Is this valid for lets say a router?

If it is valid, then it is valid,..use it for whatever you want. The router
doesn't care what it is,..there is no such thing as an "official" router
address.

>What would the subnet ID be in this case?

We already been over that. It was the first subnet listed in the chart.

Subnet ID: Usable Host Range
Broadcast
#1 43.0.0.0 43.0.0.1---43.31.255.254 43.31.255.255

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com