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Obi200: G711A silence suppression broken on NAT

Started by mbrijun, January 23, 2016, 05:14:53 AM

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mbrijun

January 23, 2016, 05:14:53 AM
Hi,

Model: Obi200
FW: 3.1.0 (Build: 5110)

I would like to report a suspected bug, not sure this is the right place.

With Silence Suppression enabled on G711A codec, Obi200 fails to open an outbound RTP connection for incomming calls if the callee remains silent. So if a callee remains silent he/she cannot hear what the caller are saying. That can be seen on my firewall. Once the Silence Suppression is disabled, the problem disappears.

Code Select
   Jan 23 12:58:22 80.xx.xx.xx obi200: RTP:Start->b9288c9e:11464(81 160);0;0;0:0:0;0(43)  
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59920.860000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34005 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59920.890000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34006 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59920.910000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34007 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59920.930000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34008 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59920.950000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34009 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59920.970000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34010 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59921.060000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34015 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59921.160000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34020 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59921.260000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34025 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59921.360000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34030 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:22 80.xx.xx.xx kernel: [59921.460000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34035 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59921.560000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34040 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59921.660000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34045 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59921.760000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34050 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx obi200: RTP:rtcp-->b9288c9e:11465  
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59921.860000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34055 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59921.960000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34060 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59922.060000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34065 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59922.160000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34070 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59922.260000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34075 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59922.360000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34080 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:23 80.xx.xx.xx kernel: [59922.460000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34085 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:24 80.xx.xx.xx kernel: [59922.560000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34090 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:24 80.xx.xx.xx kernel: [59922.660000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34095 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
   Jan 23 12:58:24 80.xx.xx.xx kernel: [59922.760000] REJECT(src wan)IN=eth0.2 OUT= MAC=f8:d1:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx SRC=185.40.140.158 DST=80.xx.xx.xx LEN=210 TOS=0x00 PREC=0x00 TTL=55 ID=34100 DF PROTO=UDP SPT=11464 DPT=16600 LEN=190
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