[asterisk-bugs] [JIRA] (ASTERISK-28551) IPv4 address in SDP o= is (null) when configured for NAT using pjsip

Brian J. Murrell (JIRA) noreply at issues.asterisk.org
Mon Sep 23 19:19:47 CDT 2019


    [ https://issues.asterisk.org/jira/browse/ASTERISK-28551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=248110#comment-248110 ] 

Brian J. Murrell commented on ASTERISK-28551:
---------------------------------------------

{noformat}
server*CLI> pjsip show endpoint brian_h8

 Endpoint:  <Endpoint/CID.....................................>  <State.....>  <Channels.>
    I/OAuth:  <AuthId/UserName...........................................................>
        Aor:  <Aor............................................>  <MaxContact>
      Contact:  <Aor/ContactUri..........................> <Hash....> <Status> <RTT(ms)..>
  Transport:  <TransportId........>  <Type>  <cos>  <tos>  <BindAddress..................>
   Identify:  <Identify/Endpoint.........................................................>
        Match:  <criteria.........................>
    Channel:  <ChannelId......................................>  <State.....>  <Time.....>
        Exten: <DialedExten...........>  CLCID: <ConnectedLineCID.......>
==========================================================================================

 Endpoint:  brian_h8                                             Not in use    0 of inf
     InAuth:  brian_h8/brian_h8
        Aor:  brian_h8                                           1
      Contact:  brian_h8/sip:brian_h8 at 10.75.22.32:57886;tr 3a9cc4d1c3 Unknown         nan


 ParameterName                      : ParameterValue
 =========================================================
 100rel                             : yes
 accept_multiple_sdp_answers        : false
 accountcode                        :
 acl                                :
 aggregate_mwi                      : true
 allow                              : (ulaw|gsm)
 allow_overlap                      : true
 allow_subscribe                    : true
 allow_transfer                     : true
 aors                               : brian_h8
 asymmetric_rtp_codec               : false
 auth                               : brian_h8
 bind_rtp_to_media_address          : false
 call_group                         :
 callerid                           : <unknown>
 callerid_privacy                   : allowed_not_screened
 callerid_tag                       :
 connected_line_method              : invite
 contact_acl                        :
 context                            : internal-sip
 cos_audio                          : 0
 cos_video                          : 0
 device_state_busy_at               : 0
 direct_media                       : true
 direct_media_glare_mitigation      : none
 direct_media_method                : invite
 disable_direct_media_on_nat        : false
 dtls_ca_file                       :
 dtls_ca_path                       :
 dtls_cert_file                     :
 dtls_cipher                        :
 dtls_fingerprint                   : SHA-256
 dtls_private_key                   :
 dtls_rekey                         : 0
 dtls_setup                         : active
 dtls_verify                        : No
 dtmf_mode                          : rfc4733
 fax_detect                         : false
 fax_detect_timeout                 : 0
 follow_early_media_fork            : true
 force_avp                          : false
 force_rport                        : true
 from_domain                        : pbx.example.com
 from_user                          :
 g726_non_standard                  : false
 ice_support                        : true
 identify_by                        : username,ip
 ignore_183_without_sdp             : false
 inband_progress                    : false
 incoming_mwi_mailbox               :
 language                           :
 mailboxes                          : 2000
 media_address                      :
 media_encryption                   : no
 media_encryption_optimistic        : false
 media_use_received_transport       : false
 message_context                    : messages
 moh_suggest                        : default
 mwi_from_user                      : 2003
 mwi_subscribe_replaces_unsolicited : no
 named_call_group                   :
 named_pickup_group                 :
 notify_early_inuse_ringing         : false
 one_touch_recording                : false
 outbound_auth                      :
 outbound_proxy                     :
 pickup_group                       :
 record_off_feature                 : automixmon
 record_on_feature                  : automixmon
 refer_blind_progress               : true
 rewrite_contact                    : false
 rpid_immediate                     : false
 rtcp_mux                           : false
 rtp_engine                         : asterisk
 rtp_ipv6                           : false
 rtp_keepalive                      : 0
 rtp_symmetric                      : false
 rtp_timeout                        : 0
 rtp_timeout_hold                   : 0
 sdp_owner                          : -
 sdp_session                        : Asterisk
 send_connected_line                : yes
 send_diversion                     : true
 send_pai                           : false
 send_rpid                          : false
 set_var                            :
 srtp_tag_32                        : false
 sub_min_expiry                     : 0
 subscribe_context                  :
 suppress_q850_reason_headers       : false
 t38_udptl                          : false
 t38_udptl_ec                       : none
 t38_udptl_ipv6                     : false
 t38_udptl_maxdatagram              : 0
 t38_udptl_nat                      : false
 timers                             : yes
 timers_min_se                      : 90
 timers_sess_expires                : 1800
 tone_zone                          :
 tos_audio                          : 0
 tos_video                          : 0
 transport                          :
 trust_connected_line               : yes
 trust_id_inbound                   : false
 trust_id_outbound                  : false
 use_avpf                           : true
 use_ptime                          : false
 user_eq_phone                      : false
 voicemail_extension                :
{noformat}

It's not lost on me that {{transport:}} above is empty.  But that's because I don't want to assign a specific transport but allow the client to decide what to use.

I did try assigning the specific transport from the *Description* to the endpoint in question with:

{{transport=transport-tcp}}

but that didn't seem to resolve the issue.

No {{ice_host_candidates}} defined in {{rtp.conf}}.

> IPv4 address in SDP o= is (null) when configured for NAT using pjsip
> --------------------------------------------------------------------
>
>                 Key: ASTERISK-28551
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28551
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: pjproject/pjsip
>    Affects Versions: 13.28.1
>            Reporter: Brian J. Murrell
>            Assignee: Brian J. Murrell
>              Labels: fax, pjsip
>
> If I configure my pjsip transport to handle NAT from the Internet:
> {noformat}
> [transport-tcp]
> type=transport
> protocol=tcp
> bind=10.75.22.8:5060
> local_net=10.75.22.0/24
> external_media_address=[external address redacted]
> external_signaling_address=[external address redacted]
> {noformat}
> When a call comes from a TCP registered SIP client on the Internet,
> Asterisk is setting the IPv4 address in the {{o=}} and {{c=}} lines of the
> SDP ICE payload to {{(null)}}:
> {noformat}
> v=0
> o=- 3654 548 IN IP4 (null)
> s=Asterisk
> c=IN IP4 (null)
> {noformat}
> IPv4 addresses in all of the {{a=}} lines are still correct.
> This {{(null)}} of course causes the caller to fail to complete the call.



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