Not able to access internal application

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nitinyjadhav7
Posts: 3
Joined: Mon Sep 20, 2021 12:28 pm

Not able to access internal application

Post by nitinyjadhav7 » Mon Sep 20, 2021 12:54 pm

Hi Softether team,
This is an awesome app and very easy to use. I have query regarding my vpn connection.
I have a very simple setup as below:
Screenshot 2021-09-20 175954.jpg
I am able to connect to VPN server and getting IP address assigned from (192.168.1.2 - 192.168.2.250) but I am not able to access any application which is running on 192.168.1.25 which is http://192.168.1.25:8080.
I already ensured that soft firewall is not blocking that.
It would be really great if someone could help me with this or any suggestion regarding setup will be appreciated.

Please let me know if you need more information.
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nobody12
Posts: 85
Joined: Sat Feb 13, 2021 10:22 pm

Re: Not able to access internal application

Post by nobody12 » Mon Sep 20, 2021 6:40 pm

The problem might be related to the Softether server not beeing able to add the Mac of the virtual cetwork card to its Ethernet interface.
If the Softether server is running on hyper-V check if in the settings on the hyper-V guest under advanced features of the Network card "Enable MAC address spoofing" is ticket. If using VMWare, check if promiscous mode is enabled for the network interface.
Also, check if for whatever reason a local bridge is present in the Softether Servers setup.

nitinyjadhav7
Posts: 3
Joined: Mon Sep 20, 2021 12:28 pm

Re: Not able to access internal application

Post by nitinyjadhav7 » Tue Sep 21, 2021 9:21 am

Hi nobody12,
Thank you for your reply.
But I have installed Softether VPN on Physical machine, there is no Vmware or Hyper-v. and still no luck with application URL access once I am on VPN.

nobody12
Posts: 85
Joined: Sat Feb 13, 2021 10:22 pm

Re: Not able to access internal application

Post by nobody12 » Tue Sep 21, 2021 9:32 am

Have you checked for the presence of the local bridge?
Did you accidentally enable "Secure Nat"?
Are you able to ping A host on the LAN/Are you able to ping the 192.168.1.25?

nitinyjadhav7
Posts: 3
Joined: Mon Sep 20, 2021 12:28 pm

Re: Not able to access internal application

Post by nitinyjadhav7 » Tue Sep 21, 2021 10:23 am

Yes I could see local bridge and there is not NAT.
also I am able to ping 192.168.1.25 it just port no. not able to connect.

nobody12
Posts: 85
Joined: Sat Feb 13, 2021 10:22 pm

Re: Not able to access internal application

Post by nobody12 » Tue Sep 21, 2021 11:40 am

if you are able to do a ping to this host using VPN
get the hosts MAC Address by using arp -a
now again try this from the internal network using any other client.
compare the MAC. Is it identical?

I just want to find out if this is really the same host you are trying to reach.

solo
Posts: 77
Joined: Sun Feb 14, 2021 10:31 am

Re: Not able to access internal application

Post by solo » Tue Sep 21, 2021 11:28 pm

The DHCP range on your picture (192.168.1.2 - 192.168.1.250) collides with static IP units on the LAN (eg. 192.168.1.10, 192.168.1.25) and when a VPN client gets a duplicate address, it will not access any application.

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