[SR-Users] IMS Kamailio "477 Unfortunately error on sending to next hop occurred" code sent by the PCSCF

Wed Aug 26 12:58:33 CEST 2015

Hello,

do a 'kamctl ps' and see if kamailio listens on an ip address that has a
route to the target address.

Cheers,
Daniel

On 23/08/15 16:36, Victor Huertas Garcia wrote:
> Hello everybody,
>
> I have tried to perform a call between alice and bob (both registered
> in the same SCSCF and from the same PCSCF). The INVITE goes all the
> way as it is supposed:
>
> Alice-->PCSCF-->SBC-->SCSCF-->ICSCF-->SCSCF-->SBC-->PCSCF.
>
> But when it reaches PCSCF on Network to User direction, this SIP proxy
> answers with a "477 Unfortunately error on sending to next hop
> occurred" code just after an exchange with the RTP Proxy (Offer-Answer).
>
> At kamailio.cfg (which it is not change from the default config) this
> exchange is done under Route[RTPRPROXY] in the function:
>
> rtpengine_manage("trust-address replace-origin
> replace-session-connection ICE=remove");
>
> Does anybody know why is complaining (see below) about the server on
> localhost while it is not configured so?
>
> Here you can find the logs from PCSCF:
>
> Aug 23 15:10:06 ims rtpengine[556]:
> [3D504184-55D9D43E00072478-7E0DE700] Received command 'offer' from
> 192.168.0.108:57522
>
> Aug 23 15:10:06 ims rtpengine[556]:
> [3D504184-55D9D43E00072478-7E0DE700] Creating new call
>
> Aug 23 15:10:06 ims rtpengine[556]:
> [3D504184-55D9D43E00072478-7E0DE700] Replying to 'offer' from
> 192.168.0.108:57522
>
> Aug 23 15:10:06 ims /usr/sbin/kamailio[3313]: ERROR: ***
> cfgtrace:request_route=[RTPPROXY] c=[/etc/kamailio/pcscf/kamailio.cfg]
> l=813 a=2 n=return
>
> Aug 23 15:10:06 ims /usr/sbin/kamailio[3313]: ERROR: ***
> cfgtrace:request_route=[Term_Initial]
> c=[/etc/kamailio/pcscf/kamailio.cfg] l=1196 a=24 n=t_relay
>
> Aug 23 15:10:06 ims /usr/sbin/kamailio[3313]: ERROR: <core>
> [udp_server.c:550]: udp_send():
> sendto(sock,0x7f480e27ed70,1358,0,192.168.0.105:49284,16): Invalid
> argument(22)
>
> Aug 23 15:10:06 ims /usr/sbin/kamailio[3313]: CRITICAL: <core>
> [udp_server.c:555]: udp_send(): invalid sendtoparameters#012one
> possible reason is the server is bound to localhost and#012attempts to
> send to the net
>
>
> Here you can find the configuration from RTP proxy
> (/etc/default/ngcp-rtpengine-daemon) and you can see that I am not
> listening the localhost port at "INTERFACES":
>
>
>
>
> RUN_RTPENGINE=yes
>
>
> LISTEN_TCP=25060
>
> LISTEN_UDP=12222
>
> LISTEN_NG=22222
>
> LISTEN_CLI=9900
>
> INTERFACES="192.168.0.108"
>
> TIMEOUT=60
>
> SILENT_TIMEOUT=3600
>
> PIDFILE=/var/run/ngcp-rtpengine-daemon.pid
>
> FORK=yes
>
> # TOS=184
>
> TABLE=0
>
> # NO_FALLBACK=yes
>
> # PORT_MIN=30000
>
> # PORT_MAX=50000
>
> # REDIS=127.0.0.1:6379
>
> # REDIS_DB=1
>
> # B2B_URL=http://127.0.0.1:8090/
>
> # LOG_LEVEL=6
>
> # LOG_FACILITY=daemon
>
> # LOG_FACILITY_CDR=daemon
>
> # LOG_FACILITY_RTCP=daemon
>
> # NUM_THREADS=5
>
> # DELETE_DELAY=30
>
> # GRAPHITE=9006
>
> # GRAPHITE_INTERVAL=60
>
> # GRAPHITE_PREFIX=myownprefix
>
> # MAX_SESSIONS=5000
>
>
> And finally the pcscf.cfg:
>
> # SIP / UDP
>
> listen=udp:eth0:4060
>
> #listen=udp:127.0.0.1:4070
>
> listen=udp:127.0.0.1:4060
>
> # SIP / TCP (Monitoring)
>
> #listen=tcp:127.0.0.1:4060
>
> # SIP / TCP/TLS
>
> #listen=tls:109.239.57.200:5061
>
> # SIP / Websocket
>
>
> #!define MY_WS_PORT 80
>
>
> listen=tcp:eth0:MY_WS_PORT
>
>
> # SIP / Websocket/TLS
>
> #!define MY_WSS_PORT 443
>
> #listen=tls:109.239.57.200:MY_WSS_PORT
>
>
> #alias=pcscf-1.imscore.org
>
> alias=pcscf.home-domain.net
>
> #alias=proxy.imscore.org
>
> #alias=tls:"wss-proxy.imscore.org":443
>
>
> # Port, where we listen to Traffic
>
> #!define PORT 4060
>
>
> # NUEVO Workshop!
>
> #!define SBCPORT 5080
>
> #!define PCSCF_URL "sip:pcscf.home-domain.net"
>
> #!define TCP_PROCESSES 32
>
>
> #!subst "/NETWORKNAME/home-domain.net/"
>
> #!subst "/HOSTNAME/pcscf.home-domain.net/"
>
> #!define HOSTNAME_IP pcscf.home-domain.net
>
> #!define HOSTNAME_ESC "pcscf\.home-domain\.net"
>
>
> # SIP-Address of capturing node, if not set, capturing is disabled.
>
> ##!define CAPTURE_NODE "sip:10.1.8.55"
>
>
> # Allowed IPs for XML-RPC-Queries
>
> #!define XMLRPC_WHITELIST_1 "127.0.0.1"
>
> ##!define XMLRPC_WHITELIST_2 "127.0.0.1"
>
> ##!define XMLRPC_WHITELIST_3 "127.0.0.1"
>
>
> # Databases:
>
> #!define DB_URL "mysql://pcscf:heslo@127.0.0.1/pcscf"
>
> ##!define DB_URL2 "con2=>mysql://pcscf:heslo@127.0.0.1/pcscf"
>
> ##!define DB_URL "con1=>mysql://pcscf:heslo@192.168.5.1/pcscf"
>
> ##!define DB_URL2 "con2=>mysql://pcscf:heslo@10.1.27.217/pcscf"
>
>
> #! Optional: Server-URL for Websocket-Requests
>
> ##!define WEBSOCKET_WEBSERVER "phone.imscore.org"
>
>
> # NUEVO Workshop!
>
> #!subst "/ICID_VALUE_PREFIX/P-CSCFabcd/"
>
> #!subst "/ICID_GEN_ADDR/127.0.0.1/"
>
>
> # IP-Adress(es) of the RTP-Proxy
>
> ##!define RTPPROXY_ADDRESS "udp:10.1.2.186:22222 udp:10.1.27.217:22222"
>
> #!define RTPPROXY_ADDRESS "udp:192.168.0.108:22222"
>
> #
>
> # Several features can be enabled using '#!define WITH_FEATURE'
> directives:
>
> #
>
> # *** To run in debug mode:
>
> #     - define WITH_DEBUG
>
> #
>
> # *** To enable nat traversal execute:
>
> #     - define WITH_NAT
>
> #     - define the connection to the RTP-Proxy: RTPPROXY_ADDRESS
>
> #
>
> # *** To force alls calls through the RTP-Proxy
>
> #     - this will automagically enable NAT-Traversal
>
> #     - define FORCE_RTPRELAY
>
> #
>
> # *** To enable IPv4/IPv6 Translation (RTPProxy)
>
> #     - this will automagically enable NAT-Traversal
>
> #     - define WITH_RTPIPV4
>
> #
>
> # *** To enable TCP support execute:
>
> #     - define WITH_TCP
>
> #
>
> # *** To enable TLS support execute:
>
> #     - adjust CFGDIR/tls.cfg as needed
>
> #     - define WITH_TLS
>
> #     - this will automagically enable TCP
>
> #
>
> # *** To enable XMLRPC support execute:
>
> #     - define WITH_XMLRPC
>
> #     - this will automagically enable TCP
>
> #
>
> # *** To enable anti-flood detection execute:
>
> #     - adjust pike and htable=>ipban settings as needed (default is
>
> #       block if more than 16 requests in 2 seconds and ban for 300
> seconds)
>
> #     - define WITH_ANTIFLOOD
>
> #
>
> # *** To enable the Rx-Interface:
>
> #     - Configure Rx-Diameter-Interface in pcscf.xml
>
> #     - define WITH_RX
>
> #
>
> # *** To enable a Homer SIP-Capter-Node:
>
> #     - define CAPTURE_NODE with a proper address
>
> #
>
> # *** To enable support for the SEMS-SBC
>
> #     - define WITH_SBC
>
> #     - configure dispatcher-list with a set of SBC's
>
> #
>
> # *** To enable support for Websocket
>
> #     - define WITH_WEBSOCKET
>
> #     - this will automagically enable TCP
>
> #
>
> # Enabled Features for this host:
>
> #!define WITH_DEBUG
>
> #!define WITH_NAT
>
> #!define WITH_NATPING
>
> #!define FORCE_RTPRELAY
>
> ##!define WITH_TLS
>
> #!define WITH_XMLRPC
>
> #!define WITH_ANTIFLOOD
>
> ##!define WITH_RX
>
> ##!define WITH_RX_REG
>
> ##!define WITH_RX_CALL
>
> ##!define WITH_TCP
>
> ##!define WITH_SBC
>
> ##!define WITH_RTPIPV4
>
> #!define WITH_SBC_CALL
>
> #!define WITH_REGINFO
>
> #!define WITH_WEBSOCKET
>
> #!define WITH_IMS_HDR_CACHE
>
>
> Thanks a lot for your attention
>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio - http://www.asipto.com

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