[Freeswitch-users] NAT: SDP with local IP in o-line unicast_address

Tue Nov 11 15:27:34 MSK 2014

Hello Brian,

a reloadacl shows
2014-11-11 13:21:37.079554 [NOTICE] switch_core.c:1306 Created ip list
rfc6598.auto default (deny)
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
100.64.0.0/10 (allow) [] to list rfc6598.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_core.c:1312 Created ip list
rfc1918.auto default (deny)
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding 10.0.0.0/8
(allow) [] to list rfc1918.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
172.16.0.0/12 (allow) [] to list rfc1918.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
192.168.0.0/16 (allow) [] to list rfc1918.auto

2014-11-11 13:21:37.079554 [NOTICE] switch_core.c:1320 Created ip list
wan.auto default (allow)
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding 0.0.0.0/8
(deny) [] to list wan.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding 10.0.0.0/8
(deny) [] to list wan.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
172.16.0.0/12 (deny) [] to list wan.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
192.168.0.0/16 (deny) [] to list wan.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
169.254.0.0/16 (deny) [] to list wan.auto

2014-11-11 13:21:37.079554 [NOTICE] switch_core.c:1330 Created ip list
nat.auto default (deny)
2014-11-11 13:21:37.079554 [NOTICE] switch_core.c:1332 Adding
192.168.206.241/255.255.255.255 (deny) to list nat.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding 10.0.0.0/8
(allow) [] to list nat.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
172.16.0.0/12 (allow) [] to list nat.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
192.168.0.0/16 (allow) [] to list nat.auto
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
100.64.0.0/10 (allow) [] to list nat.auto

2014-11-11 13:21:37.079554 [NOTICE] switch_core.c:1342 Created ip list
loopback.auto default (deny)
2014-11-11 13:21:37.079554 [NOTICE] switch_utils.c:325 Adding
127.0.0.0/8 (allow) [] to list loopback.auto

2014-11-11 13:21:37.079554 [NOTICE] switch_core.c:1348 Created ip list
localnet.auto default (deny)
2014-11-11 13:21:37.079554 [NOTICE] switch_core.c:1351 Adding
192.168.206.241/255.255.255.255 (allow) to list localnet.auto

2014-11-11 13:21:37.179566 [NOTICE] switch_core.c:1376 Created ip list
lan default (allow)
2014-11-11 13:21:37.179566 [NOTICE] switch_utils.c:325 Adding
192.168.42.0/24 (deny) [] to list lan
2014-11-11 13:21:37.179566 [NOTICE] switch_core.c:1451 Adding
192.168.42.0/24 (deny) to list lan
2014-11-11 13:21:37.179566 [NOTICE] switch_utils.c:325 Adding
192.168.42.42/32 (allow) [] to list lan
2014-11-11 13:21:37.179566 [NOTICE] switch_core.c:1451 Adding
192.168.42.42/32 (allow) to list lan

212.xxx.xxx.106 is set for ext-rtp-ip and ext-sip-ip.

Best regards
Peter

On 11/07/14 14:16, Brian West wrote:
> what do you have local-network-acl, ext-rtp-ip and ext-sip-ip?
>
> On Fri, Nov 7, 2014 at 6:23 AM, Peter Steinbach <lists at telefaks.de
> <mailto:lists at telefaks.de>> wrote:
>
>     Hell,
>
>     we have the following problem:
>
>     Our Freswitch is behind NAT. We are sending faxes to a SIP provider.
>     Dependend on the destination number, the faxes are received or not.
>     Faxes are always sent via the same SIP provider and the same dialplan,
>     but I expect, they may be routed differently via other, subsequent SIP
>     providers.
>
>     Regarding the SDP I can see, that the c-line does contain the our
>     external IP, but the o-Line does contain the local IP in the
>     unicast_address field.
>     We are routing the call via a defined gateway in the external profile,
>     which has external_sip_ip set and external_rtp_ip set.
>     Dialplan is:
>     <action application="export" data="t38_passthru=true"/>
>     <action application="set" data="proxy_media=true"/>
>     <action application="bridge"
>     data="sofia/gateway/QSC/06912345678 at sip.qsc.de
>     <mailto:06912345678 at sip.qsc.de>"/>
>
>     Here is the SDP
>     ====================================
>     v=0.
>     o=FreeSWITCH 1037989557 1037989558 IN IP4 192.168.206.241.
>     s=FreeSWITCH.
>     c=IN IP4 212.xxx.xxx.106.
>     t=0 0.
>     m=audio 12056 RTP/AVP 0 8.
>     a=rtpmap:0 PCMU/8000/1.
>     a=rtpmap:8 PCMA/8000/1.
>     a=maxptime:240.
>     ====================================
>
>     I suspect, that the following SIP providers may have a problem
>     with the
>     o-line with the local IP.
>     So - Is there any way to control this? E.g. via Dialplan variable?
>
>     ACL also seems to be fine
>     2014-11-07 12:31:10.599563 [NOTICE] switch_utils.c:324 Adding
>     192.168.0.0/16 <http://192.168.0.0/16> (allow) [] to list rfc1918.auto
>     2014-11-07 12:31:10.599563 [NOTICE] switch_utils.c:324 Adding
>     192.168.0.0/16 <http://192.168.0.0/16> (allow) [] to list nat.auto
>
>     I see the same behaviour also in
>     https://freeswitch.org/jira/browse/FS-5909 "ext-xxx-ip ignored with
>     proxy_media turned on"
>     There is a link for a patch, which is no longer available. Did this go
>     into the main release? Does anybody have this patch?
>
>
>     --
>     With kind regards
>     Peter
>
>
>     _________________________________________________________________________
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>
> -- 
>
> */Brian West/*
> brian at freeswitch.org <mailto:brian at freeswitch.org>
>
>
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-- 
With kind regards
Peter Steinbach 

Telefaks Services GmbH
mailto:lists (att) telefaks.de
Internet: www.telefaks.de

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