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Subnetting

jonk34567
Level 4
Level 4

for below attached diagram i did the sub-netting below. is it correct ? also if the static routing is used what are the routing table entries in each router.

 

  192.168.3.0/24  is  the network

5 computers  ---192.168.3.0/29

7 computers  ---192.168.3.0/28

14 computers  ---192.168.3.16 /28

 

 

10 Replies 10

Mark Malone
VIP Alumni
VIP Alumni
Hi
your host section is correct in terms of the amount of usable users per subnet but its all the same subnet /24 your breaking down so you cant have 2 network subnets that both start with .0

192.168.3.0/29 = 192.168.3.1 - 6 usable
192.168.3.8/29 = 192.168.3.9 - 15 usable
192.168.3.16/28 = 192.168.3.17 - 30 usable

5 computers  ---192.168.3.0/29

7 computers  ---192.168.3.0/28

 

are they wrong because both start with 0 ? but they are 2 different subnet masks

 

Yes because they both cant start with same ip address space , even though there different subnet masks there under same supernet /24 the /29s and /28 exist under this space so only 1 of them can take the first set of ips

also may i know the routing table entries in each router

Hi

I think it was a typo, but using VLSM the network should be: 

 

192.168.3.0/28   --- 14 hosts

192.168.3.16/29  --- 7 hosts

192.168.3.24/29  --- 5 hosts

192.168.3.32/30  -- P2P

192.168.3.36/30  -- P2P

192.168.3.40/30  -- P2P

192.168.3.42/30  -- P2P




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<

also may i know the routing table entries in each router 

Hi

You could see the entries through; show ip route, on each router. 




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<

Hello

Have a look at the attach file -it may provide you with a clearer explanation  to your query.

 

res
Paul


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

thank you very much but it does not have any routing table entries

Hello


@jonk34567 wrote:

thank you very much but it does not have any routing table entries


Apologies but what do yo mean by routing entry's?

 

res

Paul


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul
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