Re: openvpn server bridge.

Tauno Voipio wrote:
music wrote:


Server vpn is in dmz controlled by a netscreen 204 firewall.
Client has an adsl internet connection.
Netscreen firewall opens upd 1194 in input while output is all open.
Client has no firewall rules.
I see that, when I try to ping server to client or client to server, there are many arp requests without answer.
Sorry for my bad english.
If you need more information ask me, thank you.


A VPN is a connection of two private networks using
a public IP connection to transport the packets. To
do this, we need two IP addresses at each end of the
connection (called a tunnel): one to use the public
Internet (tunnel outside address) and another for the
private network data (tunnel inside address).

OpenVPN provides two different ways of transferring
internal network data: routing IP packets (using tun0)
or bridging link-level (Ethernet) frames (using tap0).

In your case, the inside ends of the tunnel seem to
be set up for transporting link-level (Ethernet)
frames to bridge the internal network segments
together. I do not see the necessary outside
interfaces and their addresses (for UDP port 1194)
in the setup you posted.


Do you mean the public ip?
For client side I have an adsl internet connection with dinamic public ip.
For server side the public ip is 82.85.10.18 and the netscreen firewall makes a nat between 172.16.14.14 and the public ip to allow connections from/to internet.
.

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