[Openvpn-users] Re: OpenVPN on OS X

["Jim O'Gorman" <jogorman@xxxxxxxxx>]

Just as a followup to my self here:

Using the exact same config files, everything works perfect when set
to TCP. As soon as it is changed to UDP, these errors kick in.

So, I have a work around for now. But, this does indicate to me
something is wrong with either the tun driver on OS X, or openvpn on
OS X.

Jim

On Apr 6, 2005 10:04 AM, Jim O'Gorman <jogorman@xxxxxxxxx> wrote:
> Hello there, I am hoping someone might have seen this problem before.
> 
> I am setting up OpenVPN as a WEP replacement for OS X 10.3 clients. I
> have it working fine for routing to a private IP range, but when I
> add:
> 
> push "redirect-gateway local def1"
> 
> to the server, after I start up the client I get errors of:
> 
> Wed Apr  6 00:09:54 2005 GID set to nobody
> Wed Apr  6 00:09:54 2005 UID set to nobody
> Wed Apr  6 00:09:54 2005 Initialization Sequence Completed
> Wed Apr  6 00:09:54 2005 write UDPv4: No buffer space available (code=55)
> Wed Apr  6 00:09:54 2005 write UDPv4: No buffer space available (code=55)
> Wed Apr  6 00:09:54 2005 write UDPv4: No buffer space available (code=55)
> Wed Apr  6 00:09:54 2005 write UDPv4: No buffer space available (code=55)
> Wed Apr  6 00:09:54 2005 write UDPv4: No buffer space available (code=55)
> 
> on the Client. While the connection was "up" I tried a ping to see
> what would happen, and I get:
> 
> $ ping 192.168.100.1
> PING 192.168.100.1 (192.168.100.1): 56 data bytes
> ping: sendto: No buffer space available
> 
> Going through the FAQ, I see this error for Linux, but obviously that
> fix does not translate directly to OS X.
> 
> Using sysctl, I found these options:
> 
> net.local.stream.recvspace: 8192
> net.local.stream.sendspace: 8192
> 
> that I thought might be related. But, I wanted to double check with
> others that might have seen this before.
> 
> Some more information, right after I closed down the connection,
> netstat reported this:
> 
> 187 mbufs in use:
>         181 mbufs allocated to data
>         2 mbufs allocated to packet headers
>         3 mbufs allocated to socket names and addresses
>         1 mbufs allocated to Appletalk data blocks
> 211/1028 mbuf clusters in use
> 2102 Kbytes allocated to network (22% in use)
> 0 requests for memory denied
> 0 requests for memory delayed
> 0 calls to protocol drain routines
> 
> The tun driver I am using is the one from
> http://www-user.rhrk.uni-kl.de/~nissler/tuntap/.
> 
> Anyone have any suggestions on what I may try to resolve this?
> 
> Thanks
> Jim
>

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