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37456 discussions

Proxy topology question
by Greg Mannie 06 Feb '12

06 Feb '12

Hello After much reading I have come to the realization that after years of using Asterisk I know very little about Sip. I have my Kamailio box up, I have Asterisk 1.8.x running with realtime working. I thought it would be just a case of registering SIP trunks from my provider to the kamailio and registering our internal asterisk servers to the kamailio. Much of what I read talks about using Asterisk as the PSTN interface, but that interface is through a sip trunk purchased from a provider. Won't Kamailio be the PSTN gateway? The idea here is to pool all the sip trunks from the various hosted asterisk solutions (VM running asterisk) and point them all to a proxy to facilitate the aggregation of traffic. I have been reading SIP tutorials and the mailing list archives. If anyone has a sample config and perhaps a little direction it would be highly appreciated. Thank you Greg

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loading carrierroute failes using another DB
by Uri Shacked 06 Feb '12

06 Feb '12

Hi, I changed the location of the DB kamailio works with. i copied the relevalt tables and changed the relevant names in the cfg file. while trying to load kamailio i realized that it misses the "veresion" table. first - can someone explain the version table usage? second, after creating and copying that data from the version table. i tried to load kamailio again and got the follwing: " DEBUG: carrierroute [cr_db.c:345]: loading, cycle 0 0(24689) ERROR: <core> [daemonize.c:307]: Main process exited before writing to pipe" any help? thanks, Uri

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"kamctl cr show" when carrierroute table has another name
by Uri Shacked 06 Feb '12

06 Feb '12

Hi, after resolving the field type issue :-), i changed the params in kamctlrc to point to the right DB. now, i notice that when i use the command "kamctl cr show" iget an error that it does not find the table "carrierroute". in the cfg file it is all set and works fine, cr dump is working as expected as well. in the kamctl file i can find the param - CARRIERROUTE_TABLE. but where is it set from? anyone knows where do i make tha change in order for the kamctl to "know" the names of the tables i use? thanks, Uri

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Kamailio 3.1.5 core dump from the snmpstats module
by Klaus Feichtinger 06 Feb '12

06 Feb '12

Hello list, I`ve found a negative phenomenon during startup of kamailio 3.1.x (orgininally found in version 3.1.5) that results in a core dump, triggered by the snmpstats module. During startup of the SIP proxy server machine the linux service "heartbeat" is responsible for starting required ressources like mysql, kamailio and snmpd. These services are monitored by the tool "monit". Monit is supervising the state of the named services and if kamailio is not up and running, monit is trying to restart the service. During startup the mysql database takes some time until it is ready to use and therefore kamailio can`t connect to the database. Monit is detecting this and restarting kamailio. This is done so often until kamailio is up and running. Finally all services are up and running and the machine is working fine. However, I do not like the core dump that was created during this "restart phase". As soon as the module "snmpstats" is not used, no core dump is created any more. Information about the core dump looks as follows: (1) output of kamailio log files: <prefix> kamailio: INFO: <core> [tcp_main.c:4726]: init_tcp: using epoll_lt as the io watch method (auto detected) <prefix> /usr/sbin/kamailio[3027]: ERROR: db_mysql [km_my_con.c:109]: driver error: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) <prefix> /usr/sbin/kamailio[3027]: ERROR: <core> [db.c:289]: could not add connection to the pool <prefix> /usr/sbin/kamailio[3027]: ERROR: lcr [lcr_mod.c:359]: unable to connect to the database <prefix> /usr/sbin/kamailio[3027]: ERROR: lcr [lcr_mod.c:571]: unable to open database connection <prefix> /usr/sbin/kamailio[3027]: ERROR: <core> [sr_module.c:875]: init_mod(): Error while initializing module lcr (/usr/lib/kamailio/modules/lcr.so) <prefix> /usr/sbin/kamailio[3027]: INFO: snmpstats [snmpstats.c:387]: The SNMPStats module got the kill signal <prefix> kamailio: ERROR: <core> [daemonize.c:307]: Main process exited before writing to pipe <prefix> kamailio: INFO: <core> [tcp_main.c:4726]: init_tcp: using epoll_lt as the io watch method (auto detected) <prefix> kamailio: WARNING: <core> [daemonize.c:352]: pid file contains old pid, replacing pid <prefix> /usr/sbin/kamailio[3322]: INFO: usrloc [hslot.c:53]: locks array size 512 <prefix> /usr/sbin/kamailio[3322]: INFO: auth [auth_mod.c:312]: auth: qop set, but nonce-count (nc_enabled) support disabled <prefix> /usr/sbin/kamailio[3322]: INFO: pua [pua.c:360]: the query returned no result <prefix> /usr/sbin/kamailio[3322]: INFO: pike [ip_tree.c:88]: probing 256 set size <prefix> /usr/sbin/kamailio[3322]: INFO: <core> [udp_server.c:178]: INFO: udp_init: SO_RCVBUF is initially 111616 <prefix> /usr/sbin/kamailio[3322]: INFO: <core> [udp_server.c:229]: INFO: udp_init: SO_RCVBUF is finally 262142 <prefix> /usr/sbin/kamailio[3329]: INFO: mi_datagram [mi_datagram.c:326]: a new child 0/3329 (2) output of GDB / core file: Core was generated by `/usr/sbin/kamailio -P /var/run/kamailio/kamailio.pid -m 1024 -u kamailio -g kama'. Program terminated with signal 11, Segmentation fault. [New process 3027] #0 0xb775539c in freeInterprocessBuffer () at interprocess_buffer.c:354 354 interprocess_buffer.c: No such file or directory. in interprocess_buffer.c (gdb) I know that it is not a fine method in killing kamailio during initialisation. But I have not found a better way yet. The other modules like LCR have no problem with the kill signal during initialisation. My main question is now: how could these core dumps being avoided? Did anybody have the same experience as me? Thanks in advance, Klaus

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Kamailio, Freeradius and CDRTool
by Reda Aouad 05 Feb '12

05 Feb '12

Hi, I am trying to get Kamailio to work with CDRTool. In the step of installing freeradius and adding kamailio's dictionary dictionary.kamailio to freeradius, I get the following error when starting freeradius -X, which fails to start: Error: Errors reading dictionary: dict_init: No ATTRIBUTE "Sip-Method" defined for VALUE "Other" Replacing Kamailio's dictionary with OpenSips' one, freeradius starts correctly. I assume then that there's something missing in Kamailio's dictionary. I am using Kamailio v3.2.0 and it's dictionary file. Any help ? Thanks :) RA

1 1

3.2.2
by dotnetdub 03 Feb '12

03 Feb '12

Hi All, I've just installed 3.2.2. I'm using a config that was working fine with 3.1 and all seems ok. I get one error that I don't get on 3.1 at startup. kamailio: ERROR: <core> [ppcfg.c:79]: ### added subst expression: /DB/mysql This is repeated for all SUBST statements in the config. I get these errors also: [1293000.484026] INFO: task kamailio:19912 blocked for more than 120 seconds. [1293000.484081] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1293000.484169] kamailio D c4608e58 0 19912 19899 0x00000000 [1293000.484173] f6b5d980 00000082 40827cc6 c4608e58 000006cf c1441e20 c1441e20 000000fd [1293000.484177] f6b5db3c c4608e20 00000000 4085cc46 00049753 ffe3a684 ffffffff f7077bac [1293000.484180] f6b5d9ac f6b5db3c f6b5d980 c102b2b7 00000001 c4608e20 00000004 00000005 [1293000.484184] Call Trace: [1293000.484191] [<c102b2b7>] ? check_preempt_wakeup+0x18c/0x202 [1293000.484195] [<c127f55f>] ? __mutex_lock_common+0xe8/0x13b [1293000.484198] [<c127f5c1>] ? __mutex_lock_slowpath+0xf/0x11 [1293000.484200] [<c127f652>] ? mutex_lock+0x17/0x24 [1293000.484202] [<c127f652>] ? mutex_lock+0x17/0x24 [1293000.484205] [<c123f68b>] ? unix_dgram_recvmsg+0x49/0x1e4 [1293000.484207] [<c10268bd>] ? __wake_up_common+0x34/0x59 [1293000.484210] [<c102a97c>] ? __wake_up_sync_key+0x33/0x49 [1293000.484213] [<c11dd3b0>] ? __sock_recvmsg+0x50/0x58 [1293000.484215] [<c11dd8e7>] ? sock_recvmsg+0x9d/0xb6 [1293000.484218] [<c104a652>] ? autoremove_wake_function+0x0/0x2d [1293000.484221] [<c1092950>] ? __alloc_pages_nodemask+0xf3/0x4d9 [1293000.484224] [<c108e16b>] ? find_lock_page+0x1b/0x36 [1293000.484227] [<c1025769>] ? kmap_atomic_prot+0xd7/0xfc [1293000.484230] [<c113cd18>] ? cpumask_any_but+0x20/0x2b [1293000.484232] [<c11de830>] ? sys_recvfrom+0xc0/0x120 [1293000.484235] [<c1143b63>] ? copy_from_user+0x27/0x10e [1293000.484237] [<c1025769>] ? kmap_atomic_prot+0xd7/0xfc [1293000.484240] [<c10a2deb>] ? handle_mm_fault+0x982/0xa22 [1293000.484243] [<c104a652>] ? autoremove_wake_function+0x0/0x2d [1293000.484246] [<c10baa1d>] ? fsnotify_access+0x5a/0x61 [1293000.484248] [<c11decee>] ? sys_socketcall+0x123/0x1aa [1293000.484251] [<c100813b>] ? sysenter_do_call+0x12/0x28 19912 is MI datagram. I have been getting these errors since 1.x and what I normally do is echo 0 > /proc/sys/kernel/hung_task_timeout_secs to get rid of it. It must be a module that I am loading. Is this possible to debug? I can again get rid of the messages but would love to know whats causing it. BR Shena

1 1

question about NAT being behind of a Load Balancer
by Albert Petit 03 Feb '12

03 Feb '12

Hi , Sorry for previous email. Hit send too soon . Good morning, On my system i've a structure similar to: SIP Clients SIP Platform [-------------------] [---------------------------------] S1 @IP2 S2 @IP3 SIP UACs SIP LB ... [NATted and @IP1 non Nattted] SN @IPN SIP LB is based on Kamailio dispatcher and is responsible of distributing the load between different Servers SIP UAS. S1, S2,... SN Servers have a Kamailio Server too which will forward received balanced traffic to appropiate service (Presence , registrar,...) Considering SIP LB and all SIP UAS have Public IP, how NAT from the UACs could be handled on this scenario? Initially I thought NAT should be handled on SIP LB however I would like the most simple possible load balancer with no need to read user locations . Responsible of location users should be S1,S2,..:SN Then, would it be possible to handle NAT of the SIP UACs *from the SIP UAS *with NAT Helper module? What i'm afraid is: If all traffic to S1,S2,..SN comes from SIP LB then nat_helper could think all clients are NATTed because top most via will be SIP LB. What I need, I think, is that NAT Helper decides if there is NAT looking the Via Header added originally by UAC , and not the top most via (which would be SIP LB). Is that possible? If possible how should i configure Nat helper for that? BR Albert

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Re: [SR-Users] sr-users Digest, Vol 81, Issue 7
by Yufei Tao 03 Feb '12

03 Feb '12

Hi I think I got the tcp_crlf_ping and the tcp_keepalive parameters mixed up. So for tcp_crlf_ping, Kamailio will only respond. While for tcp_keepalive parameters, if enabled on both server and client, both will be sending the keepalives, and the receiver will respond. In order to use tcp_crlf_ping, client's app level rather than TCP level would have to send the crlfcrlf (pings) and process the crlf (pongs) in order to detect if Kamailio is up. Is this right? Yufei On 03/02/12 11:00, sr-users-request(a)lists.sip-router.org wrote: > Send sr-users mailing list submissions to > sr-users(a)lists.sip-router.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > or, via email, send a message with subject or body 'help' to > sr-users-request(a)lists.sip-router.org > > You can reach the person managing the list at > sr-users-owner(a)lists.sip-router.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of sr-users digest..." > > > Today's Topics: > > 1. TCP keepalive on server and client (Yufei Tao) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 3 Feb 2012 10:33:11 +0000 > From: Yufei Tao <yufei.tao(a)redembedded.com> > Subject: [SR-Users] TCP keepalive on server and client > To: <sr-users(a)lists.sip-router.org> > Message-ID: <4F2BB7E7.2090601(a)redembedded.com> > Content-Type: text/plain; charset="ISO-8859-1" > > Hi > > I want to use TCP keepalive to detect dead connections between Kamailio > and my SIP clients. I've got some questions about this: > > 1. If I enable it on Kamailio by setting for example: > > tcp_crlf_ping = yes > tcp_keepalive = yes > tcp_keepidle = 60 > tcp_keepintvl = 10 > tcp_keepcnt = 3 > > >From what I read by gooling, that means Kamailio only responds to the > crlfcrlf sent by the client, but can't be configured to send the > crlfcrlf. Is this right? > > 2. On my client, if I use setsockopt to set the corresponding values: > > SO_KEEPALIVE > TCP_KEEPCNT > TCP_KEEPIDLE > TCP_KEEPINTVL > > would it make the client send crlfcrlf? > > The reason I'm confused is, with these settings, if Kamailio can only > respond to crlfcrlf, but not send, then would the client only respond > too, as in 1. and 2., they seem to configure the same set of parameters? > Please help me clarify this. Thanks very much! > > Yufei > > -- > Yufei Tao > Red Embedded > > This E-mail and any attachments hereto are strictly confidential and intended solely for the addressee. If you are not the intended addressee please notify the sender by return and delete the message. > > You must not disclose, forward or copy this E-mail or attachments to any third party without the prior consent of the sender. > > Red Embedded Design, Company Number 06688253 Registered in England: The Waterfront, Salts Mill Rd, Saltaire, BD17 7EZ > > > > ------------------------------ > > _______________________________________________ > sr-users mailing list > sr-users(a)lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > > End of sr-users Digest, Vol 81, Issue 7 > *************************************** -- Yufei Tao Red Embedded This E-mail and any attachments hereto are strictly confidential and intended solely for the addressee. If you are not the intended addressee please notify the sender by return and delete the message. You must not disclose, forward or copy this E-mail or attachments to any third party without the prior consent of the sender. Red Embedded Design, Company Number 06688253 Registered in England: The Waterfront, Salts Mill Rd, Saltaire, BD17 7EZ

2 1

(no subject)
by Albert Petit 03 Feb '12

03 Feb '12

Hi, SIP UAS1 SIP LB <--------------------->

2 1

Kamailio ims / rtpproxy
by trojak＠st.fri.uniza.sk 02 Feb '12

02 Feb '12

Hi, I am trying to make kamailio PCSCF working with rtpproxy (for NAT traversal). I would like to ask, if there is any tutorial for this, or if you can give me any advice. I also have installed rtpproxy package; #!define WITH_NAT, and defined rtpproxy port in config file... But this is not working. I noticed, that in default config file of pcscf is nothing in routing logic with rtpproxy (or it is unnecessary ?), so I try to copy route[RELAY] route[NAT] route[RTPPROXY] modules from kamailio (no pcscf) config file... but also with no success. Can you help me please ? What I am doing wrong ? Do you have any configuration working with rtpproxy ? Best wishes Lubo

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