Support self-relaying without NAT loopback

[bp2468]

Apart from what is given below I've inlcuded secret and realm. There is no error when checked with trickle ice. But not working in browser.
contents of my yml:

listen:
    -
      ip: "::"
      port: 3478
      transport: udp
      enable_turn: true
    #-
    #  ip: "::"
    #  port: 3478
    #  transport: tcp
    #  enable_turn: true
    #-
    #  ip: "::"
    #  port: 5349
    #  transport: tls

  ## TLS certificate/key files (must be readable by 'eturnal' user!):
  #tls_crt_file: /etc/eturnal/tls/crt.pem
  #tls_key_file: /etc/eturnal/tls/key.pem

  ## The server's public IPv4 address (default: autodetected):
  relay_ipv4_addr: "x.x.x.x"
  ## The server's public IPv6 address (optional):
  #relay_ipv6_addr: "2001:db8::4"

  ## UDP relay port range (usually, several ports per A/V call are required):
  relay_min_port: 12000     # This is the default.
  relay_max_port: 13000     # This is the default.

  ## Reject TURN relaying to the following addresses/networks:
  blacklist_peers: []
    #- recommended           # Expands to various addresses/networks recommended
                            # to be blocked. This is the default.

  ## If 'true', close established calls on expiry of temporary TURN credentials:
  strict_expiry: false      # This is the default.

  ## Logging configuration:
  log_level: info           # critical | error | warning | notice | info | debug
  log_rotate_size: 10485760 # 10 MiB (default: unlimited, i.e., no rotation).
  log_rotate_count: 10      # Keep 10 rotated log files.
  #log_dir: stdout          # Enable for logging to the terminal/journal.

  ## See: https://eturnal.net/doc/#Module_Configuration
  modules:
    mod_log_stun: {}        # Log STUN queries (in addition to TURN sessions).
    #mod_stats_prometheus:  # Expose STUN/TURN and VM metrics to Prometheus.
    #  ip: any              # This is the default: Listen on all interfaces.
    #  port: 8081           # This is the default.
    #  tls: false           # This is the default.
    #  vm_metrics: true     # This is the default.

Log:

2025-12-09 17:13:31.112551+05:30 [info] Responding to STUN request [UDP, session pieuezfs7o1i, anonymous, client 14.139.183.221:56783]
2025-12-09 17:13:36.899501+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session nr4hy00cmod5, user 1765280875, client 14.139.183.221:56783]
2025-12-09 17:13:36.899757+05:30 [info] Client requested closing the TURN session [UDP, session yx9i1st562ol, user 1765280875, client 14.139.183.221:56783, relay 14.139.173.219:12397]
2025-12-09 17:13:36.900323+05:30 [info] Deleting TURN allocation [UDP, session yx9i1st562ol, user 1765280875, client 14.139.183.221:56783, relay 14.139.173.219:12397]
2025-12-09 17:13:36.899975+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session rkqku065ho2o, user 1765280878, client 223.239.3.22:59020]
2025-12-09 17:13:36.900504+05:30 [info] Client requested closing the TURN session [UDP, session dlirwpnbodaa, user 1765280878, client 223.239.3.22:59020, relay 14.139.173.219:12003]
2025-12-09 17:13:36.900379+05:30 [notice] Relayed 12 KiB (in 0 B / 0 packets, out 11808 B / 123 packets), duration: 25 seconds [UDP, session yx9i1st562ol, user 1765280875, client 14.139.183.221:56783, relay 14.139.173.219:12397]
2025-12-09 17:13:36.900665+05:30 [info] Deleting TURN allocation [UDP, session dlirwpnbodaa, user 1765280878, client 223.239.3.22:59020, relay 14.139.173.219:12003]
2025-12-09 17:13:36.900681+05:30 [notice] Relayed 12 KiB (in 0 B / 0 packets, out 12200 B / 122 packets), duration: 28 seconds [UDP, session dlirwpnbodaa, user 1765280878, client 223.239.3.22:59020, relay 14.139.173.219:12003]
2025-12-09 17:15:48.998824+05:30 [info] Responding to STUN request [UDP, session 1ch9qtqjyphe, anonymous, client 223.239.3.22:60339]
2025-12-09 17:15:49.036295+05:30 [info] Responding to STUN request [UDP, session but6cfh0b738, anonymous, client 223.239.3.22:60344]
2025-12-09 17:15:49.105221+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client 223.239.3.22:60339]
2025-12-09 17:15:49.106449+05:30 [notice] Creating TURN allocation (lifetime: 600 seconds) [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client 223.239.3.22:60339, relay 14.139.173.219:12221]
2025-12-09 17:15:49.158102+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session deqogxyerp91, user 1765281040:7994747256, client 223.239.3.22:60344]
2025-12-09 17:15:49.158952+05:30 [notice] Creating TURN allocation (lifetime: 600 seconds) [UDP, session deqogxyerp91, user 1765281040:7994747256, client 223.239.3.22:60344, relay 14.139.173.219:12532]
2025-12-09 17:15:49.397403+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session qputgl2eipmb, user 1765281040:7994747256, client 223.239.3.22:60339]
2025-12-09 17:15:51.585154+05:30 [info] Responding to STUN request [UDP, session h8uf3utixieh, anonymous, client 14.139.183.221:50719]
2025-12-09 17:15:51.635748+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session yoto22s2ib1m, user 1765281036:201016, client 14.139.183.221:50719]
2025-12-09 17:15:51.636219+05:30 [notice] Creating TURN allocation (lifetime: 600 seconds) [UDP, session yoto22s2ib1m, user 1765281036:201016, client 14.139.183.221:50719, relay 14.139.173.219:12200]
2025-12-09 17:15:51.639178+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 3gl1uuovdlxf, user 1765281036:201016, client 14.139.183.221:50719]
2025-12-09 17:15:51.639332+05:30 [info] Creating TURN permission for 10.43.15.96 [UDP, session yoto22s2ib1m, user 1765281036:201016, client 14.139.183.221:50719, relay 14.139.173.219:12200]
2025-12-09 17:15:51.639463+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session t79q2zkkpwhv, user 1765281036:201016, client 14.139.183.221:50719]
2025-12-09 17:15:51.639524+05:30 [info] Creating TURN permission for 223.239.3.22 [UDP, session yoto22s2ib1m, user 1765281036:201016, client 14.139.183.221:50719, relay 14.139.173.219:12200]
2025-12-09 17:15:51.639598+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 83i4yg6qq9zz, user 1765281036:201016, client 14.139.183.221:50719]
2025-12-09 17:15:51.639646+05:30 [info] Creating TURN permission for 14.139.173.219 [UDP, session yoto22s2ib1m, user 1765281036:201016, client 14.139.183.221:50719, relay 14.139.173.219:12200]
2025-12-09 17:15:52.228945+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session rt2tzsywbua0, user 1765281040:7994747256, client 223.239.3.22:60344]
2025-12-09 17:15:52.229223+05:30 [info] Client requested closing the TURN session [UDP, session deqogxyerp91, user 1765281040:7994747256, client 223.239.3.22:60344, relay 14.139.173.219:12532]
2025-12-09 17:15:52.229708+05:30 [info] Deleting TURN allocation [UDP, session deqogxyerp91, user 1765281040:7994747256, client 223.239.3.22:60344, relay 14.139.173.219:12532]
2025-12-09 17:15:52.229831+05:30 [notice] Relayed 0 KiB (in 0 B / 0 packets, out 0 B / 0 packets), duration: 3 seconds [UDP, session deqogxyerp91, user 1765281040:7994747256, client 223.239.3.22:60344, relay 14.139.173.219:12532]
2025-12-09 17:15:52.238135+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session bbnn9zmgoo2w, user 1765281040:7994747256, client 223.239.3.22:60339]
2025-12-09 17:15:52.238291+05:30 [info] Creating TURN permission for 10.176.16.131 [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client 223.239.3.22:60339, relay 14.139.173.219:12221]
2025-12-09 17:15:52.238448+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 05bevk52lntq, user 1765281040:7994747256, client 223.239.3.22:60339]
2025-12-09 17:15:52.238520+05:30 [info] Creating TURN permission for 14.139.183.221 [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client 223.239.3.22:60339, relay 14.139.173.219:12221]
2025-12-09 17:15:52.238600+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 13dpkkytk1ey, user 1765281040:7994747256, client 223.239.3.22:60339]
2025-12-09 17:15:52.238638+05:30 [info] Creating TURN permission for 14.139.173.219 [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client 223.239.3.22:60339, relay 14.139.173.219:12221]
2025-12-09 17:15:54.714273+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session b88eceb90cxk, user 1765281036:201016, client 14.139.183.221:50719]
2025-12-09 17:15:54.714629+05:30 [info] Client requested closing the TURN session [UDP, session yoto22s2ib1m, user 1765281036:201016, client 14.139.183.221:50719, relay 14.139.173.219:12200]
2025-12-09 17:15:54.714938+05:30 [info] Deleting TURN allocation [UDP, session yoto22s2ib1m, user 1765281036:201016, client 14.139.183.221:50719, relay 14.139.173.219:12200]
2025-12-09 17:15:54.714971+05:30 [notice] Relayed 2 KiB (in 0 B / 0 packets, out 2304 B / 24 packets), duration: 3 seconds [UDP, session yoto22s2ib1m, user 1765281036:201016, client 14.139.183.221:50719, relay 14.139.173.219:12200]
2025-12-09 17:15:55.030660+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session jqdrcdb3wi3o, user 1765281040:7994747256, client 223.239.3.22:60339]
2025-12-09 17:15:55.030913+05:30 [info] Client requested closing the TURN session [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client 223.239.3.22:60339, relay 14.139.173.219:12221]
2025-12-09 17:15:55.031221+05:30 [info] Deleting TURN allocation [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client 223.239.3.22:60339, relay 14.139.173.219:12221]
2025-12-09 17:15:55.031320+05:30 [notice] Relayed 2 KiB (in 0 B / 0 packets, out 2100 B / 21 packets), duration: 5 seconds [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client 223.239.3.22:60339, relay 14.139.173.219:12221]
2025-12-09 17:16:42.863497+05:30 [info] Responding to STUN request [UDP, session nlyndmcwumbr, anonymous, client 14.139.183.221:61705]
2025-12-09 17:16:42.932708+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session mwbzqwsko6sf, user 1765281073:turnuser-tcp, client 14.139.183.221:61705]
2025-12-09 17:16:42.933171+05:30 [notice] Creating TURN allocation (lifetime: 600 seconds) [UDP, session mwbzqwsko6sf, user 1765281073:turnuser-tcp, client 14.139.183.221:61705, relay 14.139.173.219:12624]
2025-12-09 17:16:42.995530+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 1mwrz9534apa, user 1765281073:turnuser-tcp, client 14.139.183.221:61705]
2025-12-09 17:16:42.995831+05:30 [info] Client requested closing the TURN session [UDP, session mwbzqwsko6sf, user 1765281073:turnuser-tcp, client 14.139.183.221:61705, relay 14.139.173.219:12624]
2025-12-09 17:16:42.996112+05:30 [info] Deleting TURN allocation [UDP, session mwbzqwsko6sf, user 1765281073:turnuser-tcp, client 14.139.183.221:61705, relay 14.139.173.219:12624]
2025-12-09 17:16:42.996191+05:30 [notice] Relayed 0 KiB (in 0 B / 0 packets, out 0 B / 0 packets), duration: 0 seconds [UDP, session mwbzqwsko6sf, user 1765281073:turnuser-tcp, client 14.139.183.221:61705, relay 14.139.173.219:12624]

[sando38]

Simple first question: https://github.com/processone/eturnal/blob/master/doc/QUICK-TEST.md

• you opened the UDP port range 12000:13000 in your firewall?

[bp2468]

Simple first question: https://github.com/processone/eturnal/blob/master/doc/QUICK-TEST.md

• you opened the UDP port range 12000:13000 in your firewall?

Yes

[weiss]

It does look like it's related to the relay socket though. If you grep your logs for Relayed:

2025-12-09 17:13:36.900379+05:30 [notice] Relayed 12 KiB (in 0 B / 0 packets, out 11808 B / 123 packets), duration: 25 seconds [UDP, session yx9i1st562ol, user 1765280875, client *.*.*.*:56783, relay *.*.*.*:12397]
2025-12-09 17:13:36.900681+05:30 [notice] Relayed 12 KiB (in 0 B / 0 packets, out 12200 B / 122 packets), duration: 28 seconds [UDP, session dlirwpnbodaa, user 1765280878, client *.*.*.*:59020, relay *.*.*.*:12003]
2025-12-09 17:15:54.714971+05:30 [notice] Relayed 2 KiB (in 0 B / 0 packets, out 2304 B / 24 packets), duration: 3 seconds [UDP, session yoto22s2ib1m, user 1765281036:201016, client *.*.*.*:50719, relay *.*.*.*:12200]
2025-12-09 17:15:55.031320+05:30 [notice] Relayed 2 KiB (in 0 B / 0 packets, out 2100 B / 21 packets), duration: 5 seconds [UDP, session 4b3qe6kgl1zd, user 1765281040:7994747256, client *.*.*.*:60339, relay *.*.*.*:12221]

This means that:

• The communication between TURN client and server is fine: authentication and session negotiation are successful.
• eturnal sends out a few packets from the relay address/port to the peer (though that doesn't imply that they actually reach the peer).
• eturnal never receives any packets from the peer on the relay address/port.

This is almost certainly due to one of two reasons:

1. The network environment doesn't route UDP packets from the peer to a port within that UDP port range on the configured relay_ipv4_addr.
2. The routing is fine, but some packet filter is dropping them, after all.

[bp2468]

I set relay_ipv4_addr to the private IPV4 address of the server. Now I am getting Audio and Video. But I found that sometimes there is no media. How to resolve this issue?

TTL for the TURN credential is set to 300 seconds.

Log when no media:

2025-12-10 14:51:37.232295+05:30 [notice] Relayed 0 KiB (in 0 B / 0 packets, out 0 B / 0 packets), duration: 5 seconds [TCP, session 6riqinl6szy1, user 1765358783, client 14.139.183.221:61575, relay 10.122.0.18:12609]
2025-12-10 14:51:37.233498+05:30 [info] Accepting long-term STUN/TURN authentication [TCP, session 6wt5pl0f3rbn, user 1765358783, client 14.139.183.221:61574]
2025-12-10 14:51:37.233564+05:30 [info] Creating TURN permission for 172.21.241.96 [TCP, session 6wt5pl0f3rbn, user 1765358783, client 14.139.183.221:61574, relay 10.122.0.18:12441]
2025-12-10 14:51:37.233547+05:30 [info] Accepting long-term STUN/TURN authentication [TCP, session 6wt5pl0f3rbn, user 1765358783, client 14.139.183.221:61574]
2025-12-10 14:51:37.233669+05:30 [info] Creating TURN permission for 106.222.179.181 [TCP, session 6wt5pl0f3rbn, user 1765358783, client 14.139.183.221:61574, relay 10.122.0.18:12441]
2025-12-10 14:51:37.234236+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session l5yfk0c59plz, user 1765358783, client 14.139.183.221:50040]
2025-12-10 14:51:37.234294+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 5j6etdzjnpc6, user 1765358786, client 106.222.179.181:48395]
2025-12-10 14:51:37.234325+05:30 [info] Creating TURN permission for 10.122.0.18 [UDP, session ihtrja2kwm34, user 1765358786, client 106.222.179.181:48395, relay 10.122.0.18:12802]
2025-12-10 14:51:37.234405+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session yuqm75ccrfj7, user 1765358783, client 14.139.183.221:50040]
2025-12-10 14:51:37.234341+05:30 [info] Creating TURN permission for 172.21.241.96 [UDP, session gr6zglfw0w2c, user 1765358783, client 14.139.183.221:50040, relay 10.122.0.18:12596]
2025-12-10 14:51:37.234710+05:30 [info] Creating TURN permission for 106.222.179.181 [UDP, session gr6zglfw0w2c, user 1765358783, client 14.139.183.221:50040, relay 10.122.0.18:12596]
2025-12-10 14:51:37.235546+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session x35q5sj81bvs, user 1765358786, client 106.222.179.181:48395]
2025-12-10 14:51:37.235582+05:30 [info] Refreshing TURN permission for 10.122.0.18 [UDP, session ihtrja2kwm34, user 1765358786, client 106.222.179.181:48395, relay 10.122.0.18:12802]
2025-12-10 14:51:37.413985+05:30 [info] Accepting long-term STUN/TURN authentication [TCP, session qxudgz2k15qz, user 1765358786, client 106.222.179.181:48384]
2025-12-10 14:51:37.414442+05:30 [info] Creating TURN permission for 10.176.16.131 [TCP, session qxudgz2k15qz, user 1765358786, client 106.222.179.181:48384, relay 10.122.0.18:12504]
2025-12-10 14:51:37.414330+05:30 [info] Accepting long-term STUN/TURN authentication [TCP, session qxudgz2k15qz, user 1765358786, client 106.222.179.181:48384]
2025-12-10 14:51:37.414984+05:30 [info] Creating TURN permission for 14.139.183.221 [TCP, session qxudgz2k15qz, user 1765358786, client 106.222.179.181:48384, relay 10.122.0.18:12504]
2025-12-10 14:51:37.414904+05:30 [info] Accepting long-term STUN/TURN authentication [TCP, session qxudgz2k15qz, user 1765358786, client 106.222.179.181:48384]
2025-12-10 14:51:37.415282+05:30 [info] Creating TURN permission for 10.122.0.18 [TCP, session qxudgz2k15qz, user 1765358786, client 106.222.179.181:48384, relay 10.122.0.18:12504]
2025-12-10 14:51:37.415252+05:30 [info] Accepting long-term STUN/TURN authentication [TCP, session qxudgz2k15qz, user 1765358786, client 106.222.179.181:48384]
2025-12-10 14:51:37.415421+05:30 [info] Refreshing TURN permission for 10.122.0.18 [TCP, session qxudgz2k15qz, user 1765358786, client 106.222.179.181:48384, relay 10.122.0.18:12504]
2025-12-10 14:51:37.554968+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 9xe3ahom3apr, user 1765358786, client 106.222.179.181:48395]
2025-12-10 14:51:37.555159+05:30 [info] Refreshing TURN permission for 14.139.183.221 [UDP, session ihtrja2kwm34, user 1765358786, client 106.222.179.181:48395, relay 10.122.0.18:12802]
2025-12-10 14:51:37.555431+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session 48xa0t67r4lw, user 1765358786, client 106.222.179.181:48395]
2025-12-10 14:51:37.555611+05:30 [info] Refreshing TURN permission for 10.122.0.18 [UDP, session ihtrja2kwm34, user 1765358786, client 106.222.179.181:48395, relay 10.122.0.18:12802]
2025-12-10 14:51:37.555650+05:30 [info] Accepting long-term STUN/TURN authentication [UDP, session lrvhpe7vd8qk, user 1765358786, client 106.222.179.181:48395]
2025-12-10 14:51:37.555750+05:30 [info] Refreshing TURN permission for 10.122.0.18 [UDP, session ihtrja2kwm34, user 1765358786, client 106.222.179.181:48395, relay 10.122.0.18:12802]

TCP Dump

14:55:56.433532 ens34 Out IP 10.122.0.18.12090 > 172.21.241.96.47832: UDP, length 100
14:55:56.494835 ens34 Out IP 10.122.0.18.12090 > 106.222.179.181.48396: UDP, length 100
14:55:56.591535 ens34 Out IP 10.122.0.18.12599 > 10.176.16.131.61328: UDP, length 96
14:55:56.591620 ens34 Out IP 10.122.0.18.12599 > 14.139.183.221.61328: UDP, length 96
14:55:56.593086 lo In IP 10.122.0.18.12599 > 10.122.0.18.12238: UDP, length 96
14:55:56.594009 lo In IP 10.122.0.18.12599 > 10.122.0.18.12090: UDP, length 96
14:55:56.683308 ens34 Out IP 10.122.0.18.12238 > 172.21.241.96.47832: UDP, length 100
14:55:56.745505 ens34 Out IP 10.122.0.18.12238 > 106.222.179.181.48396: UDP, length 100
14:55:56.807268 ens34 Out IP 10.122.0.18.12090 > 172.21.241.96.47832: UDP, length 100
14:55:56.870413 ens34 Out IP 10.122.0.18.12090 > 106.222.179.181.48396: UDP, length 100
14:55:56.948745 ens34 In IP 10.213.0.18.10272 > 10.122.0.18.12238: UDP, length 108
14:55:56.962096 ens34 Out IP 10.122.0.18.12734 > 10.176.16.131.61328: UDP, length 96
14:55:56.968764 ens34 In IP 10.213.0.18.10272 > 10.122.0.18.12090: UDP, length 108
14:55:56.979285 ens34 Out IP 10.122.0.18.12734 > 14.139.183.221.61328: UDP, length 96
14:55:56.985875 lo In IP 10.122.0.18.12734 > 10.122.0.18.12238: UDP, length 96
14:55:57.058672 lo In IP 10.122.0.18.12734 > 10.122.0.18.12090: UDP, length 96
14:55:57.074630 ens34 Out IP 10.122.0.18.12238 > 172.21.241.96.47832: UDP, length 100
14:55:57.123446 ens34 Out IP 10.122.0.18.12599 > 10.176.16.131.61328: UDP, length 96
14:55:57.136042 ens34 Out IP 10.122.0.18.12238 > 106.222.179.181.48396: UDP, length 100
14:55:57.214466 ens34 Out IP 10.122.0.18.12090 > 172.21.241.96.47832: UDP, length 100
14:55:57.276280 ens34 Out IP 10.122.0.18.12090 > 106.222.179.181.48396: UDP, length 100
14:55:57.395746 ens34 Out IP 10.122.0.18.12599 > 14.139.183.221.61328: UDP, length 96
14:55:57.395837 lo In IP 10.122.0.18.12599 > 10.122.0.18.12238: UDP, length 96
14:55:57.395891 lo In IP 10.122.0.18.12599 > 10.122.0.18.12090: UDP, length 96
14:55:57.463534 ens34 Out IP 10.122.0.18.12238 > 172.21.241.96.47832: UDP, length 100
14:55:57.527074 ens34 Out IP 10.122.0.18.12238 > 106.222.179.181.48396: UDP, length 100
14:55:57.588823 ens34 Out IP 10.122.0.18.12090 > 172.21.241.96.47832: UDP, length 100
14:55:57.651515 ens34 Out IP 10.122.0.18.12090 > 106.222.179.181.48396: UDP, length 100
14:55:57.783389 ens34 Out IP 10.122.0.18.12734 > 10.176.16.131.61328: UDP, length 96
14:55:57.783516 ens34 Out IP 10.122.0.18.12734 > 14.139.183.221.61328: UDP, length 96
14:55:57.783549 lo In IP 10.122.0.18.12734 > 10.122.0.18.12238: UDP, length 96
14:55:57.791651 lo In IP 10.122.0.18.12734 > 10.122.0.18.12090: UDP, length 96
14:55:57.854372 ens34 Out IP 10.122.0.18.12238 > 172.21.241.96.47832: UDP, length 100
14:55:57.883444 ens34 Out IP 10.122.0.18.12599 > 10.176.16.131.61328: UDP, length 96
14:55:57.917174 ens34 Out IP 10.122.0.18.12238 > 106.222.179.181.48396: UDP, length 100
14:55:57.922880 ens34 Out IP 10.122.0.18.12599 > 14.139.183.221.61328: UDP, length 96
14:55:57.981290 ens34 Out IP 10.122.0.18.12090 > 172.21.241.96.47832: UDP, length 100
14:55:58.041526 ens34 Out IP 10.122.0.18.12090 > 106.222.179.181.48396: UDP, length 100
14:55:58.230480 ens34 Out IP 10.122.0.18.12238 > 172.21.241.96.47832: UDP, length 100
14:55:58.236050 lo In IP 10.122.0.18.12599 > 10.122.0.18.12238: UDP, length 96
14:55:58.236106 lo In IP 10.122.0.18.12599 > 10.122.0.18.12090: UDP, length 96
14:55:58.293087 ens34 Out IP 10.122.0.18.12238 > 106.222.179.181.48396: UDP, length 100
14:55:58.354575 ens34 Out IP 10.122.0.18.12090 > 172.21.241.96.47832: UDP, length 100
14:55:58.358219 ens34 Out IP 10.122.0.18.12734 > 10.176.16.131.61328: UDP, length 96
14:55:58.417179 ens34 Out IP 10.122.0.18.12090 > 106.222.179.181.48396: UDP, length 100
14:55:58.550441 ens34 In IP 10.213.0.18.10272 > 10.122.0.18.12238: UDP, length 108
14:55:58.570648 ens34 In IP 10.213.0.18.10272 > 10.122.0.18.12090: UDP, length 108
14:55:58.616203 ens34 Out IP 10.122.0.18.12734 > 14.139.183.221.61328: UDP, length 96
14:55:58.635310 ens34 Out IP 10.122.0.18.12238 > 172.21.241.96.47832: UDP, length 100
14:55:58.639092 lo In IP 10.122.0.18.12734 > 10.122.0.18.12238: UDP, length 96
14:55:58.639134 lo In IP 10.122.0.18.12734 > 10.122.0.18.12090: UDP, length 96
14:55:58.644308 ens34 Out IP 10.122.0.18.12599 > 10.176.16.131.61328: UDP, length 96

[weiss]

I set relay_ipv4_addr to the private IPV4 address of the server.

It must be the external, public address. Except if the TURN peer is on the same private subnet. I.e., the (UDP port range on the) relat_ipv4_addr must be accessible by the TURN peer.

Now I am getting Audio and Video.

WebRTC typically prefers peer-to-peer streaming if possible. So successful A/V doesn't imply a correct TURN (networking) setup. Check the eturnal log file for Relayed lines that show a large-ish number of packets relayed in both directions. If you don't see such a line, the streams weren't relayed via TURN.

How to resolve this issue?

It really looks like a networking/firewall issue, which is hard for us to provide help with, sorry.

[bp2468]

If it is network issue, it worked when I tried with another turn server.

[bp2468]

Inbound and outbound UDP Ports 12000 to 13000 and 3478 is opened.

[licaon-kter]

WebRTC typically prefers peer-to-peer streaming if possible

Conversations 2.19.6 and later have a setting to always force TURN usage, maybe try to enable this on both testing clients

[bp2468]

Does any other 6⁷port need to be opened for eturnal?

[bp2468]

WebRTC typically prefers peer-to-peer streaming if possible

Conversations 2.19.6 and later have a setting to always force TURN usage, maybe try to enable this on both testing clients

Thank you for the suggestion. Will try enabling relay in clients

[weiss]

it worked when I tried with another turn server.

I guess you specified the server's public/external IP address as the relay address there? Could you do that in eturnal and catch the tcpdump output for that case? I.e.:

tcpdump -i any -nn udp portrange 12000-13000

[bp2468]

tcpdump.txt

[bp2468]

eturnal.txt

I've enabled relay for the clients.