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santoshmotwaniFlag for Australia

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Network design help

Hi Experts,

we are setting up a new office. I need a help in designing network . We will have all our servers at the datacentre. So basically all we have at out premises will be some routers , firewalls and switches.

 can you please advice how many devices i need layer 3, layer 2 and firewall . It will be good if you can please tell what cisco devices should i use.

We have about 75 users . PC's & voip phones POE enabled. printers  , wireless routers.
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Thanks for quick feedback .

We are going to have an 100MBps dedicated link to Datacenter.

Currently i have following devices:
cisco 3750 - 2 of them
cisco 2960
cisco 3560
cisco 5510 -- i believe this is firewall


Can you please advice further what else i will need and how can i use above devices at the best. like which device can i use as a default gateway that will route the traffic accordingly.

Appreciated your help
sorry sumod i didn't read your post. i am going to start designing a diagram and post it back.
Above device is enough to design a simple network.. Create Vlans in core switch (3750) and make switch as your gateway..
Hi ,

I have attached a network diagram. please advice accordingly
test-network-diagram.jpg
You may need to redesign in following order from top.

Internet
Router
ASA Firewall
COre Switch
Access Switch...
Please advice accordingly.

I am not at all good at networking.
updated-test-network.jpg
Can anyone please help me set the VLANS .

I would like to use cisco 3750 switch for VOIP traffic and rest all for data.I think there will be two VLAN's

1 for voip traffic and another for rest of the traffic.
Hi experts,

I have designed attached diagram , please review it and let me know if you think anything is wroing.

Thanks
sample-network-diagram.jpg
Thanks Guys