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On 10/4/05, Kent Tong <kent@xxxxxxxxxxxx> wrote: > Leonard Isham <leonard.isham <at> gmail.com> writes: > > > Connections will fail and need to reestablish connectivity if the > > outage is lonf enough. > > Thanks for the reply. How long would be "long enough"? Or does it depends > on some factors other than the duration? > > How do people deal with this problem? It is a common need for us to > use client/server app over the VPN and if the database connection is > dropped regularly, then the app will be rendered useless. > First lets make sure we are on the same page and set perspective. Bad connectivity is bad connectivity a VPN will not change that. If you application would fail with the connectivity loss it will with the VPN, or without it... game over... unless you can resolve the connectivity issue(s). Using TCP for your VPN can increase the problems. Connectivity disruption causes the TCP connection to fail. now the three way handshake is needed to reestablish a TCP connection and then negotiate the VPN tunnel. Since UDP is connection less it may survive a disruption that causes a TCP connection to fail, and there is no handshake required when re-establishing the VPN tunnel. Did I present that clearly? -- Leonard Isham, CISSP Ostendo non ostento. ____________________________________________ Openvpn-users mailing list Openvpn-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/openvpn-users |