How to connect two local networks over the Internet?

Question

Computer networks

There are two local networks, located in different cities, with Internet access via ADSL. How can you combine them into one?

Answer 1

Em. to set up an encrypted tunnel between two ciscos, two "white" static IPs are enough.
sh run int tunnel0
interface Tunnel0
description ... to site2 tunnel
tunnel source 10.0.0.1
tunnel destination 10.0.0.2
end
and add encryption.
on the second cisco, only IPs should be swapped
, and on int fa0 / 0, this very 10.0.0.1 thread should hang on which the tunnel is being built

Answer 2

In essence, the answer is simple - VPN.
And in terms of implementation (how to make it, I mean) - there are a million options and a small cart; ranging from advanced DMVPN and IPSec to simple OpenVPN or MS ISA or Kerio.
Read about traffic tunneling.

Answer 3

Using a VPN tunnel and direct (white) ip addresses.

Answer 4

The ADSL modem works as a transparent bridge, the router behind it raises the session to the ISP and then the VPN to the remote office.

Answer 5

To directly one network? L2 VPN (MPLS or VLAN in the provider's network), but it's expensive. And no one will do it with DSL. L3 VPN - put a computer with a PPTP server and a white IP address and connect to it.

Answer 6

Those. you need to ask the provider / 29 subnet, set the modem to Bridged + Static IP mode, set the IP address with the gateway on the modem, also set the IP from the same subnet on the router interface and raise the GRE Tunnel?

Answer 7

OpenVPN is the easiest option