Configure a DHCP on a different subnet?

[Atef__Kouiri]

Hello guys !
Am new to the networking world, am setting up my first lab at my university
this diagram shows how am planning to set up my lab

I have all the equipement except a router, that's why i will install a RRAS along with my DHCP in the same server.

my questions are :
Am in the right way? will this work for me? what problems do i have here?
If it does work, will i have a good bandwith for my virtual clients?

 

[bill001g]

Not sure what you are trying to accomplish by using a server rather than a actual router to accomplish this. A very cheap router can do what you need because most the costly differences are due to wireless.

Most routers that have gig ports on them can run NAT traffic at least at 100m and many more.

A server will never be as cost effective as a router. Hard to say how much cpu you need if you use a server. You have to look at what else the server is doing. If it is only doing the NAT I suspect it will not take a very large machine.

 

[thejackal85]

This honestly looks correct to me. I have not used RRAS for DHCP, but if it works like it should, then this setup should not have any issues.

The bandwidth for your virtual customers will be determined upon the switch that you're using (make sure its 1GB), and the network speed you're receiving in the first place. As long as your network speed is good and you have a GB switch, then you should be in good shape with this diagram.

 

[Atef__Kouiri]

@bil001g / I don't have a router for the moment, so i think this will be temporally!
@thejackkal85 : we only have 100Mbits/s network at my university, i don't see a point for using a Gigabit switch? or am i wrong?

 

[thejackal85]

If you only have 100MB's at your University, then yes, a 100MB switch will work. In order to achieve speeds higher than that, that same speed needs to be at both ends (i.e., your University needs to offer 1GB, then you can get a switch that can handle that kind of traffic).

 

[Atef__Kouiri]

okay thank you for helping me, one last question since you have a good knowledge about bandwith, when i plug my computer in the university network i get and average of 1.6MB/s download, which i find weird, even though almost nobody is connected in the university besides me, what do you think can cause this problem?

 

[thejackal85]

There could literally be multiple answers to this. Your University could be utilizing what's called network throttling for their connections; which puts a cap on download/upload speeds. And/or it could just be what you're downloading. No real way of telling without consulting the IT department there.