[Openswan Users] MySQL over Openswan VPN tunnel

Simon Deziel simon at xelerance.com
Wed Feb 12 15:50:17 EST 2014

Hi Christopher,

The problem you describe could well be related to a MTU issue. I'd try
setting a MTU of say 1400 and see if things start working.


On 14-02-12 03:38 PM, Christopher Slagel wrote:
> We have a VPN tunnel with Openswan between two AWS regions and our colo
> facility (Used AWS’s
> guide: http://aws.amazon.com/articles/5472675506466066).  Regular usage
> works OK, but we are having some MySQL issues over the tunnel between
> all areas.  Using mysql command line client on a linux server works, but
> trying to connect using the MySQL Connector J it basically stalls… it
> seems to open the connection, but then gets stuck.  It doesn't get
> denied or anything, just hangs there.  Logging isn’t picking up anything
> at all and usually very verbose about errors.  Any input as to what we
> can do to fix this/improve the connections would be appreciated. Thanks.
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