Page 1 of 1
Get the static IP of server B instead of the static IP of server A
Posted: Sun Sep 25, 2022 5:21 am
by NabiKAZ
I have two servers with similar softether settings. A and B
I want when I connect to server A with OpenVPN, the user will get the static IP of server B instead of the static IP of A that he normally gets.
For this purpose, how should the configuration and type of communication between the two servers be done?
I've worked with CasCade a bit but I'm not sure if that's what it's for and has this capability.
Re: Get the static IP of server B instead of the static IP of server A
Posted: Mon Sep 26, 2022 6:31 am
by solo
You need to re-state what you want to get because the reality is that static IPs are assigned whereas dynamic IPs are given. Furthermore, if you have a multi-server setup and desire complex routing then you'd better off with an OpenVPN server for the client.
Re: Get the static IP of server B instead of the static IP of server A
Posted: Tue Sep 27, 2022 5:17 pm
by NabiKAZ
Thanks for reply.
Let me change things a bit.
I actually don't care if server A or B is assigned an IP, my main goal is to have traffic flow between the two.
It means that when we connect to server A, the traffic of server B should be used.
Re: Get the static IP of server B instead of the static IP of server A
Posted: Tue Sep 27, 2022 11:57 pm
by solo
OK, install SE server on A (presumably without a bridge nor SecureNAT) and install SE bridge on B with a cascade to the A's hub.
Re: Get the static IP of server B instead of the static IP of server A
Posted: Wed Sep 28, 2022 9:34 am
by NabiKAZ
Thankful.
But if it is the case that anyone who has an account on server A can setup an SE bridge (B) and set his account in Cascade to connect to server A and all the traffic of network A will come to him! While this does not make sense.
Maybe I didn't understand your idea correctly.
Re: Get the static IP of server B instead of the static IP of server A
Posted: Wed Sep 28, 2022 12:16 pm
by solo
Look at
this picture then imagine that the server has no local bridge, got it?
Wait, dwell on it a bit longer...
...now your dream comes true - "when we connect to server A, the traffic of server B should be used"
Re: Get the static IP of server B instead of the static IP of server A
Posted: Sat Oct 01, 2022 11:17 pm
by NabiKAZ
Let me put the problem in a different way from the beginning.
My server A is a SE server with a number of users connecting to it. But the network of this server has blocked access to some sites such as youtube.com.
On the other hand, I have a server B located in another country where youtube.com is available. But server B itself is blocked for the same users. It means that it cannot be directly connected to it. But there is access from server A to server B and vice versa.
Now my problem is how can I make it possible for users connecting to server A to open youtube.com? I can probably use server B as an intermediary. but how?
Re: Get the static IP of server B instead of the static IP of server A
Posted: Sun Oct 02, 2022 12:53 am
by solo
Let me put the solution in a different way - keep in mind the above-linked picture.
As long as New York's hub is "isolated" (no local bridge nor SecNAT) anyone connecting to the SE server will get an IP of Tokyo if Tokyo's hub has internet connection. Consider a cascade connection itself as completely independent of whatever happens between the hubs. More info on
L2 Bridge.
Re: Get the static IP of server B instead of the static IP of server A
Posted: Mon Oct 03, 2022 12:24 am
by NabiKAZ
In my scenario, I had to connect to server A. But I think in your scenario, we should have connected to server B, which was my point of confusion. Of course, this is not so important now.
I followed your instructions and this link more carefully:
https://www.softether.org/4-docs/2-howt ... Bridge_VPN
I now have a main A server with SE server and I disabled SecureNAT and I have no Bridge and no Cascade connection.
Then I installed only the SE bridge version on server B. Then I connected a user with appropriate access to server A using Cascade. Of course, SecureNAT is enabled on server B.
h5jOuwrlPZ.png
And in Local Bridge Settings, I selected the current Virtual Hub and the current LAN Adapter on the same server B and clicked Create Local Bridge, which was set to Operating status.
vpnsmgr_x64_7FRMVsx6Rz.png
Now when I try to connect to server B (to check my account from server A and get traffic and possibly its IP) I get the following error:
Error (Error Code 33): Unsupported.
wzKQoWS49C.png
Do you have any idea where I was wrong?
Re: Get the static IP of server B instead of the static IP of server A
Posted: Mon Oct 03, 2022 12:57 am
by solo
NabiKAZ wrote: ↑Mon Oct 03, 2022 12:24 am
In my scenario, I had to connect to server A. But I think in your scenario, we should have connected to server B...
No, re-read my post, all clients connect to A (the server) as you originally stipulated.
"Then I connected a user with appropriate access to server A using Cascade."
A cascade is created from B to A. Nothing to do with users.
"Of course, SecureNAT is enabled on server B."
No, SecureNAT and BRIDGE are mutually exclusive. Again, refer to the NY/Tokyo diagram -no SecureNAT there.
"Now when I try to connect to server B... I get the following error: Error (Error Code 33): Unsupported."
Oh please, again "re-read my post, all clients connect to A (the server)"
"Do you have any idea where I was wrong?"
Yes, you've changed your objectives and applied an unworkable config.