[Freeswitch-users] [Missing local host] in proxy media mode

[Marc Quore]

Hi, All

I've got FreeSwitch 1.8.2 running in media proxy mode:

<param name="inbound-proxy-media" value="true"/>
<param name="inbound-late-negotiation" value="true"/>

Dialplan is configured to bridge incoming calls to remote gateway and most
of calls completing successfully, however some of them fail with
INCOMPATIBLE_DESTINATION cause. For failed calls everything goes normally
until bridged connection gets early media from callee:

[NOTICE] sofia.c:7304 Pre-Answer sofia/external/2222 at 2.2.2.2!
[INFO] switch_ivr_originate.c:3747 Sending early media
[DEBUG] switch_core_media.c:3781 Set Codec sofia/internal/1111 at 1.1.1.1 PCMU/0
0 ms 960 samples 384000 bits 1 channels
[DEBUG] switch_core_codec.c:111 sofia/internal/1111 at 1.1.1.1 Original read
codec set to PCMU:0
[DEBUG] switch_core_media.c:8577 PROXY AUDIO RTP [sofia/internal/
1111 at 1.1.1.1] 1.1.1.1:18792->1.1.1.1:18792 codec: 0 ms: 20
[ERR] switch_core_media.c:9510 AUDIO RTP REPORTS ERROR: *[Missing local
host]*
[NOTICE] switch_core_media.c:9511 Hangup sofia/internal/1111 at 1.1.1.1
[CS_EXECUTE] [INCOMPATIBLE_DESTINATION]

Here's a dump for this call:

[image: image.png]

Healthy call on the same machine:

[DEBUG] switch_core_media.c:3781 Set Codec sofia/vpn/2222 at 2.2.2.2 PROXY/0 0
ms 160 samples 0 bits 1 channels
[DEBUG] switch_core_codec.c:111 sofia/internal/2222 at 2.2.2.2 Original read
codec set to PROXY:0
[DEBUG] switch_core_media.c:8577 PROXY AUDIO RTP [sofia/internal/
2222 at 2.2.2.2] 2.2.2.2:60818->2.2.2.2:60818 codec: 0 ms: 20

[DEBUG] switch_core_media.c:3781 Set Codec sofia/internal/1111 at 1.1.1.1 PROXY/0
0 ms 160 samples 0 bits 1 channels
[DEBUG] switch_core_codec.c:111 sofia/external/1111 at 1.1.1.1 Original read
codec set to PROXY:0
[DEBUG] switch_core_media.c:8577 PROXY AUDIO RTP [sofia/external/
1111 at 1.1.1.1] 1.1.1.1:31412->1.1.1.1:31412 codec: 0 ms: 20

So it looks like proxified media connection cannot be established for some
calls. It shouldn't be a codec problem as call parties are configured with
common codecs, FS is bond to local interface which is running with no
errors. But I have no idea what "local host is missing" in my case so I'll
be appreciated for any hint.

FreeSWITCH Version 1.8.2+git~20180926T175525Z~a98a958ac3~64bit (git a98a958
2018-09-26 17:55:25Z 64bit)
CentOS Linux release 7.5.1804 (Core)

Best,
Marc
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