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</o:shapelayout></xml><![endif]--></head><body lang=SV link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>We have an issue on our home proxy (opensips 2.4.6), when it receives 200 OK (over UDP) from our Freeswitch and the package size is higher than the MTU size , we sometimes get fragmentation of the UDP packets, but only the first part of the fragmented package is sent to our edge proxy. Is this a known issue or is it a OS bug?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>We have not yet spotted any pattern on this and in most cases bigger packets with MTU around 1600 bytes gets through without an issue.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I can add that in the other direction in the normal request routes we don’t have any issue at all can have packets > 2000 bytes without any issues.<o:p></o:p></span></p><pre style='mso-margin-top-alt:3.0pt;margin-right:0cm;margin-bottom:3.0pt;margin-left:0cm'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'>Does Opensips use IP_MTU_DISCOVER or how is fragmentation controlled and is it expected to have different behavior in reply routes vs other routes?<o:p></o:p></span></pre><p class=MsoNormal><span lang=EN-US>We use Centos 7 in a virtual server environment.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I was hoping someone can share some light on this strange issue.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>BR/Olle<o:p></o:p></span></p></div></body></html>