2015-02-12 22:33 GMT+02:00 Tristan Mahé <t.m...@b-and-c.net>: > Hi, > > bad checksum may be caused by the virtual network adapter that does not > perform hardware checksum. I had this issue on a kvm test setup. > > MTU is to be looked at, as udp does not handle very well packet > fragmentation ( to say the least ). Could you reproduce the same issue > using an openvpn tcp virtual link between your two servers ?
Hi, and thanks for your comment. Will definitely try VPN, I just wonder why is it so that > udp does not handle very well packet fragmentation ( to say the least ) ? My first action was to fill a ticket at rtpengine, but developers replied to me that this mechanism is known to be reliable, and that they don't consider adding TCP version of interface. I haven't tested this case on a lot of different networks, but for now this issue seems specific to Amazon. Anyway, will try with tunnel (which is, howevre, a workaround, not a solution). -- Andrey Utkin _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
