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KonstantinMi2021-03-05 12:44:48
Computer networks
KonstantinMi, 2021-03-05 12:44:48

The provider has allocated a subnet on a white IP, how does it work?

Suppose the provider gave us a white IP for the Internet: 56.53.64.202/29 gw 56.53.64.201
He gave us a subnet connected by a route to this ip for our services outside: 56.53.60.0/29
Now we have these ip addresses assigned through windows routing, like in the picture

6041f43e5b2ce878464916.png

But why can't I assign the same addresses to some machine in our network?
As a backup channel, we have another provider, I can set its white ip on any machine
. Everything works now, but I'm wondering exactly why they can't be set directly in our network.

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2 answer(s)
I
iddqda, 2021-03-05
@iddqda

as far as I understand, the provider simply registered a static route for itself
that the network 56.53.60.0/29 issued to you is located at the address 56.53.64.202 , then
you can use it as you like , you
can route further, or you can natit internal networks to these addresses.
I see a similar attempt on the screenshots, but it is not clear from the screenshots what is wrong. however, the question is not very clear at all and what is wrong, and I am unfamiliar with "windows" routing
, in fact, if you wish, you can even hit free addresses from the 56.53.64.200/29 transport network,
but for this you need your gateway to respond with its poppy to arp requests to used addresses. just in case, this feature is called proxy-arp

T
Talyan, 2021-03-05
@flapflapjack

Either I don't know something, or something is wrong here.
The provider gave you a subnet 56.53.63.200/29 for 6 addresses, where one of them is naturally a gateway. You are left with five white addresses:
56.53.63.202-206
This is all that is needed for the computer to receive a white address. Here they are: 56.53.63.202-206
And then you write:

Gave us a subnet attached by route to this ip for our services outside: 56.53.60.0/29

This is a different subnet. Why is it needed at all if white IPs are already available? And who will they have a gateway? I didn't understand what the joke was.
It would be very interesting to look at the trace from a computer from the list 56.53.60.0/29

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