Hi, I have latest stable release of RTPEngine deployed in a virtual machine (KVM) along with Kamailio v4.2. All is working fine except i see this message in RTPEngine logs, -- rtpengine[16455]: [82qrjq0hdtt45afbqo98 port 40960] Kernelizing media stream rtpengine[16455]: [82qrjq0hdtt45afbqo98 port 40960] No support for kernel packet forwarding available -- using lsmod command i see that module xt_RTPENGINE is load. -- Module Size Used by iptable_mangle 12488 0 xt_RTPENGINE 22068 3 iptable_nat 12800 0 nf_nat 17924 1 iptable_nat ... -- Also the iptables rule for RTPEngine exists, i.e. -- Chain INPUT (policy ACCEPT 224K packets, 37M bytes) pkts bytes target prot opt in out source destination 224K 37M rtpengine all -- any any anywhere anywhere Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 224K packets, 37M bytes) pkts bytes target prot opt in out source destination Chain rtpengine (1 references) pkts bytes target prot opt in out source destination 2022 414K RTPENGINE udp -- any any anywhere anywhere RTPENGINE id:0 -- Yet still RTPEngine is not able to kernelize the RTP stream and does user-space packet forwarding? Can you guys suggest what could be wrong here? Thank you.