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How to configure IP address and Subnet Assignment?

wildhacker741
Level 1
Level 1

I were given an IP address of 192.168.201.0/25 (2 subnets)

And i wasnt sure how to find out and configure them on the PC

This is the example given for Jurong Branch.

 

Jurong Branch IP : 192.168.107.0/24

 

Subnet 1

Network ID: 192.168.107.0

First Usable IP: 192.168.107.1

Last Usable IP: 192.168.107.126

Broadcast IP : 192.168.107.127

 

Subnet 2

Network ID: 192.168.107.128

First Usable IP: 192.168.107.129

Last Usable IP: 192.168.107.254

Broadcast IP: 192.168.107.255

 

Since the above is the example with different Network, right now i trying to find out for;

Woodlands - 192.168.201.0/25 (2 Subnets) 

Changi - 192.168.202.0/25 (2 Subnets) 

Jurong - 192.168.203.0/25 (2 Subnets) 

 

There are 2 Subnets because the above is the "Branches" of Woodlands, Changi and Jurong. Each of these Branches it also attached the Department such as Customer Service and Operations. If you're unsure what are these 3 Branches. these 3 are actually the name of the location in my country place.

 

Woodland Branches

So for Woodlands i have 2 department. One of them is called Customer Service and other one is Operations. Customer Service has 4 PC while Operations has 10 PCs.

 

Changi Branches

Is the same thing as Woodlands Branch. 4 Customer Service and 10 Operations.

 

Jurong Branches

Is the same thing as these 2 branches as well. 4 Customer service and 10 Operations.

 

Right now i need someones help to find out the;

1) Network ID

2) 1st Usable IP

3 )2nd Usable IP

4) Broadcast IP

The picture that i am going to attached is just the example. Look at the Subnet 1 and 2 because i need someone to help me out.

 

 

 

1 Accepted Solution

Accepted Solutions

balaji.bandi
Hall of Fame
Hall of Fame

I suggest you read some IP Addressing from cisco :

 

https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/13788-3.html

 

Quick reply as per your diagram :

/24 means you need to use subnetmask : 255.255.255.0

/25 means you need to use subnetmask : 255.255.255.128

 

 

Right now i need someones help to find out the;  ( Example as per your picture : Subnet1 in Yellow)

1) Network ID   - 192.168.107.0

2) 1st Usable IP  : 192.168.107.2 ( 192.168.107.1 is configured as Gateway)

3 )2nd Usable IP  : 192.168.107.3 to 192.168.107.126)

4) Broadcast IP  : 192.168.107.127

5) subnet mask : 255.255.255.128

 

Do rest of your home work.

Make Sense ?

 

BB

***** Rate All Helpful Responses *****

How to Ask The Cisco Community for Help

View solution in original post

4 Replies 4

balaji.bandi
Hall of Fame
Hall of Fame

I suggest you read some IP Addressing from cisco :

 

https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/13788-3.html

 

Quick reply as per your diagram :

/24 means you need to use subnetmask : 255.255.255.0

/25 means you need to use subnetmask : 255.255.255.128

 

 

Right now i need someones help to find out the;  ( Example as per your picture : Subnet1 in Yellow)

1) Network ID   - 192.168.107.0

2) 1st Usable IP  : 192.168.107.2 ( 192.168.107.1 is configured as Gateway)

3 )2nd Usable IP  : 192.168.107.3 to 192.168.107.126)

4) Broadcast IP  : 192.168.107.127

5) subnet mask : 255.255.255.128

 

Do rest of your home work.

Make Sense ?

 

BB

***** Rate All Helpful Responses *****

How to Ask The Cisco Community for Help

Is this correct?

 

Woodlands > 192.168.201.0/25
(Subnet 1)
Network ID > 192.168.201.0
1st Usable IP > 192.168.201.1 (Default Gateway)
Last IP > 192.168.201.30
BroadcastIP > 192.168.201.31

(Subnet 2)
Network ID > 192.168.201.32
1st Usable IP > 192.168.201.33 (Default Gateway)
Last IP > 192.168.201.62
Broadcast IP > 192.168.200.63

 

Changi > 192.168.202.0/25
(Subnet 1)
Network ID > 192.168.202.0 
1st Usable IP > 192.168.202.1 (Default Gateway)
Last IP > 192.168.202.30
Broadcast IP > 192.168.202.31

(Subnet 2)
Network ID > 192.168.202.32
1st Usable IP > 192.168.202.33 (Default Gateway)
Last IP > 192.168.202.62
Broadcast IP > 192.168.202.63

 

Jurong > 192.168.203.0/25
(Subnet 1)
Network ID > 192.168.203.0
1st Usable IP > 192.168.203.1 (Default Gateway)
Last IP > 192.168.203.30
Broadcast IP > 192.168.203.31

(Subnet 2)
Network ID > 192.168.203.32
1st Usable IP > 192.168.203.33 (Default Gateway)
Last IP > 192.168.203.62
Broadcast IP > 192.168.203.63

That is not correct, Let me give you example and you need to spend some time to understand how the ip subnetting works.

 

Woodlands > 192.168.201.0/25
(Subnet 1)
Network ID > 192.168.201.0
1st Usable IP > 192.168.201.1 (Default Gateway) - standard most of the people follow same way to easy remember - then your PC/ Device start using 192.168.201.2 to 126.
Last IP > 192.168.201.126
BroadcastIP > 192.168.201.127

BB

***** Rate All Helpful Responses *****

How to Ask The Cisco Community for Help

ohh thats for subnet 1. Then can u explain or show me example of subnet 2? because i have 2 department. I do my homework. Is it correct now?

 

Woodland
Subnet1
Network ID : 192.168.201.0
First Usable IP : 192.168.201.1 (DG)
Last Usable IP : 192.168.201.2 - 192.168.201.126 (PC)
Broadcast IP : 192.168.201.127

Subnet2
Network ID : 192.168.201.128
First Usable IP : 192.168.201.129 (DG)
Last Usable IP : 192.168.201.254
Broadcast IP : 192.168.201.255

 

 

Changi
Subnet1
Network ID : 192.168.202.0
First Usable IP : 192.168.202.1 (DG)
Last Usable IP : 192.168.202.2 - 192.168.202.126 (PC)
Broadcast IP : 192.168.202.127

Subnet2
Network ID : 192.168.202.128
First Usable IP : 192.168.202.129 (DG)
Last Usable IP : 192.168.202.254
Broadcast IP : 192.168.202.255

 

 

Jurong
Subnet1
Network ID : 192.168.203.0
First Usable IP : 192.168.203.1 (DG)
Last Usable IP : 192.168.203.2 - 192.168.203.126 (PC)
Broadcast IP : 192.168.203.127

Subnet2
Network ID : 192.168.203.128
First Usable IP : 192.168.203.129 (DG)
Last Usable IP : 192.168.203.254
Broadcast IP : 192.168.203.25