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Tuesday, October 9, 2012

Dynamic Routing & Subnetting - Rip v.2



Above is a very simple & a basic class example of an actual working office enviornment. Apaprently there have been a few changes as not to disclose what is behind the closed doors of the network dept. Yet, the institue was kind enough to let us borrow an idea of what & how the initial setup actually runs.

The only information provided to us (the students) was the above senario, IP Pool & the host requirement. Then came in the challenge to work on the above project in the shortest period of time with a fully working network infrastructure which can be expanded when needed. The senario above may have a lot of issues like incorrect method of subnetting or the calcualtion of VLSM etc but for now is working well & good. As the senario is completed using the Cisco Packet Tracer tool, if time permits, the same will be produced using the GNS3 software (recomended).

Now back to the Senario:

Joting down the data gathered & obtained through the briefing, below is the sypnosis of it.

IP POOL - 192.168.1.0 /24
No of Networks - 5
LAN1 - 15 Hosts
LAN2 - 5 Hosts
LAN3 - 10 Hosts
After subnetting, the pools flows as follows with variable subnet mask. As the routers only need two ip hence the subnet will be /30 securing the wasteage of ip.

Routers:
------------------------------
R1 - 192.168.1.0 / 30
R2 - 192.168.1.4 / 30

LAN:
------------------------------
LAN1 - 192.168.1.0 - 31 / 27
LAN2 - 192.168.1.64 - 79 /28
LAN3 - 192.168.1.32 - 63 / 27

LAN1: All PCs connected will be getting their IP via the DHCP Server.
LAN2: MAIL SERVER & DNS SERVER confugured with static ip address
LAN3: Internet Server all configured with static ips.

Now that we have calculated all the requirements & the networks / hosts. It is time to establish the connections. We first do this by giving ip to the the Router R1 followed by R2 & R3. Once the interfaces have been provided with the IP Address, we need to make sure the interfaces are up as well inorder to run the RIP Protocol.

R1 with IP assigned interfaces.

R2 with IP assigned interfaces.
R3 with IP assigned interfaces.
 The next step is to setup the routers to user RIP version 2 & let is advertise the networks to its neighbours. Assuming that you all now know how to run RIP verision 2, I will be skipping the activation part.

The rest is pretty simple, the DNS, DHCP, the acting servers (FB, Google, Yahoo), Mail Server etc. I am sure you probably know how tnat.

Attached is the Packet Tracer File that you can use to expand to collaspe the senario .. lols!!

Download : Dynamic Routing & Subnetting - Rip v.2

 

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