how can a sending host make a local request if there is a router between..

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Please think of the example below.

host-a <(x)----- (y)>*****<(z)------(t) >host-b

x --> host_a ethernet int IP = 172.16.10.2
y --> router a ethernet int IP = 172.16.10.1
z --> router_a ethernet int. IP = 172.16.20.1
t --> host_b ethernet int. IP = 172.16.20.2

According to the diagram there are different subnets also different networks of a one major
network. And it has to be like this if a router is used between hosts as above. But, in this
occasion, you know if each interface of router consists of different networks , how can a
sending host(host_a) make a local request? (for ARP)

2- Secondly another example. You know that we make use of DSL router(s) to share Internet
Connection for hosts. Consider five hosts using private addresses like 172.16.10.3 , 172.16.10.4 ,172.16.10.5 ,
172.16.10.6 and 172.16.10.7. As you can see these are from one network. On the other hand ,
we know router must have seperate network interfaces. So how can we share Internet?

 

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Not sure why he keeps posting the same message these days ;)

 

Ever thought about becoming a driving instructor..........

 

earning upto 31k a year?

 

Yes, and you can choose the hours that suit you....

 

Kobem you ask the same question in different ways all the time, I think your brain has become so muddled with stuff that you have become so confused you don't know what you are doing anymore.

Please take a step back learn some basics then go onto things that are a bit more advanced for you and please get a book on networking I am sure they sell them in Turkey and don't make up some excuse like some mad crazy dictator has taken over your city and that you need to join the army to over throw him or something

 

He's already done that.

Keep up!

 

I know but there could be a sequel...Kobem 2 with the tag line you can't destroy him, you cant beat him but he can screw with your head by asking you same networking questions in different ways

 

Or here: http://www.ehow.com/how_12158_router.html

 

^ ahhhh, so thats a router...

A router is a very useful tool — and potentially quite dangerous. A little knowledge goes a long way toward using a router safely. If you're not very handy you might want to reconsider using a router or at least be extra careful.