Re: [Openvpn-users] openvpn-2.0_beta4 --mode server in Bridged configuration

[James Y. <ji...@yo...>]

> Mon Jun 14 23:38:43 2004 TLS Error: Unknown data channel key ID or IP 
> address re
> ceived from ip.address.of.server:port: 0 (see FAQ for more info on this 
> error)
> 
> ...messages are displayed; but it is sporadic -- it only happens ~50% of 
> the time.  The FAQ seems to imply that this is a server-only message, 
> but in my case, it's only appearing on the client.

It can happen on either client or server. Make sure that your ping and
ping-restart values make sense.  

> Q: Is is mandatory that each client use unique certificate in server mode?

I would strongly recommend that you use unique certs for each client, but it
is not required.

Note that with 2.0-beta5 and later, you must use the --duplicate-cn flag if
you plan on sharing certs.

> FYI, when installing beta5 on an additional client, the installer 
> reported that "An error occurred installing the TAP-Win32 device 
> driver." <http://pavelec.net/s/?PBNSW8MS>, although everything seemed to 
> work fine afterwards.  The machine was rebooted after uninstalling 
> beta4, and after installing beta5.

Interesting, I've never seen this one before.  tapinstall.exe is returning 1
which means that Windows is telling us that it needs a reboot in order to
finalize the tap driver install.  I could never figure out how to synthesize
this condition in a test environment.  Anyway, the thing to do is continue
with the install and reboot, as you've done.  And I need to modify the
installer to pop up a reboot dialog when this occurs.

James