How to collect a list of all subnets?

Question

Computer networks

Hello!
The task is to encrypt traffic to the Savings Bank in a separate channel in order to be calm about the work of an accountant.
On https://bgp.he.net , a bunch of subnets flies out, at the request of sberbank.
Accordingly, the question is: is it possible to collect this list at once? Maybe from some other service.

Answer 1

The task is to encrypt traffic to Sberbank with a separate channel

What difference does it make which way the encrypted traffic goes? Moreover, the paths can change several times per minute.

to be calm

If personal data is transmitted in the channel, then you can only use encryption permitted by the FSTEC and the FSB. Otherwise, there will be no peace.

Is it possible to compile this list at once?

How are you going to influence the route of the package between you and the bank? This is a very important question.

Answer 2

Well, everything is simple here. Your manager should contact the manager of the Savings Bank, he will lead to technical specialists, they will already tell you the technical conditions for connection.
As a rule, the encrypted channel with the bank is ipsec, and the conditions are negotiated on both sides.

Answer 3

All bank clients already encrypt traffic, a separate channel will not do better.
End-to-end encryption will only allow you to make a tunnel directly to the SB, and they most likely will not bother with this if you do not have a company the size of some Gazprom.