Freebox openvpn implementation use "subnet" topology

Official client software for OpenVPN Access Server and OpenVPN Cloud.
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coooly
OpenVpn Newbie
Posts: 1
Joined: Sat May 10, 2014 8:35 am

Freebox openvpn implementation use "subnet" topology

Post by coooly » Sat May 10, 2014 9:21 am

Hi,

I'm not sure if I should post here or on directly on the bug tracker.
Free french ISP recently added to their set top box an open vpn server.

Configuration isn't really on user side but you can :
  • Manage user and their password
  • Enable routed and/or bridge mode
  • Choose port, encryption and fragmenting or not
  • Download each user configuration as a ovpn file
That's it, you can't modify any other setting and see what's the server configuration.

So trying to connect with a router configuration on iPhone 5s (and probably other iOS devices) leads to the following error :

Code: Select all

2014-05-10 10:51:33 TUN Error: tun_builder_error: ifconfig addresses are not in the same /30 subnet (topology net30)
2014-05-10 10:51:33 EVENT: TUN_SETUP_FAILED tun_builder_error: ifconfig addresses are not in the same /30 subnet (topology net30) [ERR]
2014-05-10 10:51:33 EVENT: DISCONNECTED
Freebox Dev says that's because OpenVPN connect doesn't support subnet topology. (http://dev.freebox.fr/bugs/task/14662#comment61428)

Which is where my small knowledge of configuring those things stops. :)

So does the client doesn't support it ? Is it planned ?

If needed:
Connection log : https://docs.google.com/document/d/1u7p ... W3bdQo/pub
ovpn client file : https://docs.google.com/document/d/1CE1 ... xjmaOg/pub

Thanks !

PsykotropyK
OpenVpn Newbie
Posts: 1
Joined: Fri Jul 14, 2023 10:49 am

Re: Freebox openvpn implementation use "subnet" topology

Post by PsykotropyK » Fri Jul 14, 2023 10:50 am

I am reviving an old post but I was looking for the same issue and found the answer, so posting here in case it helps someone.

In order to set up the "subnet" topology you can edit the configuration file that the server provides in order to specify the topology.

Just add : 'topology subnet' in it

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