Are you using OpenVPN? In that case I believe you need the following options on the client:
mssfix 1200 tun-mtu 1200 ___ John Petrini NOC Systems Administrator // *CoreDial, LLC* // coredial.com // [image: Twitter] <https://twitter.com/coredial> [image: LinkedIn] <http://www.linkedin.com/company/99631> [image: Google Plus] <https://plus.google.com/104062177220750809525/posts> [image: Blog] <http://success.coredial.com/blog> Hillcrest I, 751 Arbor Way, Suite 150, Blue Bell PA, 19422 *P: *215.297.4400 x232 // *F: *215.297.4401 // *E: * jpetr...@coredial.com [image: Exceptional people. Proven Processes. Innovative Technology. Discover CoreDial - watch our video] <http://cta-redirect.hubspot.com/cta/redirect/210539/4c492538-6e4b-445e-9480-bef676787085> The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. On Thu, Jan 5, 2017 at 11:48 AM, Mārtiņš Jakubovičs < martins-li...@hostnet.lv> wrote: > I am tying, but all the time VPN starts with 1500 MTU. > > On 2017.01.05. 18:46, John Petrini wrote: > > Is ppp0 your VPN interface? Have you tried lowering thee MTU on the VPN? > > ___ > > John Petrini > > NOC Systems Administrator // *CoreDial, LLC* // coredial.com > // [image: Twitter] <https://twitter.com/coredial> [image: > LinkedIn] <http://www.linkedin.com/company/99631> [image: Google Plus] > <https://plus.google.com/104062177220750809525/posts> [image: Blog] > <http://success.coredial.com/blog> > Hillcrest I, 751 Arbor Way, Suite 150, Blue Bell PA, 19422 > *P: *215.297.4400 x232 // *F: *215.297.4401 // *E: * > <jpetr...@coredial.com>jpetr...@coredial.com > > [image: Exceptional people. Proven Processes. Innovative Technology. > Discover CoreDial - watch our video] > <http://cta-redirect.hubspot.com/cta/redirect/210539/4c492538-6e4b-445e-9480-bef676787085> > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. Any review, retransmission, dissemination or other use of, or > taking of any action in reliance upon, this information by persons or > entities other than the intended recipient is prohibited. If you received > this in error, please contact the sender and delete the material from any > computer. > > On Thu, Jan 5, 2017 at 11:20 AM, Mārtiņš Jakubovičs < > <martins-li...@hostnet.lv>martins-li...@hostnet.lv> wrote: > >> Network it self are working great, but I just have issue with PPTP. >> >> If I lower MTU in instance interface, it didn't help. >> On 2017.01.05. 18:11, Prashant Shetty wrote: >> >> Could you try setting MTU lesser value say 1200 on instance interface and >> re-try?. >> Ideally your physical server connecting to switch port must have >> configured with atleast 1600 MTU in order for VXLAN traffic to work >> seamlessly. >> >> Thanks, >> Prashant >> >> On Thu, Jan 5, 2017 at 9:30 PM, Mārtiņš Jakubovičs < >> <martins-li...@hostnet.lv>martins-li...@hostnet.lv> wrote: >> >>> Hello all, >>> >>> I have problem to setup PPTP VPN behind floating IP's in instances which >>> have VXLAN network. Maybe someone had same issue and can recommend >>> something? In security groups I allowed protocol's 47 traffic and VPN >>> client can connect but it can't establish connection, I consider, maybe >>> issue are with MTU, so VXLAN have MTU 1450, but if I watch ip link show, I >>> can see that ppp0 interface creates with MTU of 1500. >>> >>> Best regards, >>> >>> Martins >>> >>> >>> _______________________________________________ >>> Mailing list: http://lists.openstack.org/cgi >>> -bin/mailman/listinfo/openstack >>> Post to : openstack@lists.openstack.org >>> Unsubscribe : http://lists.openstack.org/cgi >>> -bin/mailman/listinfo/openstack >>> >> >> >> >> _______________________________________________ >> Mailing list: http://lists.openstack.org/cgi >> -bin/mailman/listinfo/openstack >> Post to : openstack@lists.openstack.org >> Unsubscribe : http://lists.openstack.org/cgi >> -bin/mailman/listinfo/openstack >> >> > > > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/ > openstack > Post to : openstack@lists.openstack.org > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/ > openstack > >
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