Re: [OpenSIPS-Users] loose_route() sending ACK itself

[Satish Patel]

Thanks Vlad,

I have sent you screenshot of sip trace to your private address because of
security reason, could you take a look and respond.

On Tue, Apr 7, 2015 at 1:08 PM, Vlad Paiu  wrote:

>  Hello,
>
> Looking in your SIP trace, I see that in the 200OK Contact, you have
> Contact: . , and when OpenSIPS is
> routing the ACK out, it is routing it to
>
>  U 182.XX.XX.164:5060 -> 72.XX.XX.140:5060
> ACK sip:72.XX.XX.140;did=7de.9accc6f5 SIP/2.0.
>
> so not sure where exactly is the loop.
>
> Best Regards,
>
> Vlad Paiu
> OpenSIPS Developerhttp://www.opensips-solutions.com
>
> On 07.04.2015 19:32, Satish Patel wrote:
>
> It is URGENT!!
>
>  can some one help?  This is very strange issue and i am stuck here :(
>
>  loose_route()  sending ACK/BYE itself instead of next hope :(
>
>  I have removed all entries from "domain" table but no luck :(
>
> On Thu, Mar 26, 2015 at 12:09 AM, Satish Patel 
> wrote:
>
>>   Hi,
>>
>>  senario:
>>
>>  [UA]-[Opensips]-[Freeswitch]
>>
>>
>>  UA sending correct ACK to freeswitch but Opensips loose_route() sending
>> it to itself and it break dialog, If use fix_dialog_route() then it works,
>> I don't have any IP address added in domain table also.
>>
>>  How do i check whether Freeswitch using loose_route for strict route?
>>
>>
>> I have following script:
>>
>> if (has_totag()) {
>>
>> if (loose_route()) {
>>
>>if (is_method("BYE")) {
>> #setflag(ACC_DO); # do accounting ...
>> #setflag(ACC_FAILED); # ... even if the
>> transaction fails
>> } else if (is_method("INVITE")) {
>> # even if in most of the cases is
>> useless, do RR for
>> # re-INVITEs alos, as some buggy clients
>> do change route set
>> # during the dialog.
>> record_route();
>> }
>>
>> if (check_route_param("nat=yes"))
>> setflag(NAT);
>>
>> # route it out to whatever destination was set by
>> loose_route()
>> # in $du (destination URI).
>> route(relay);
>>  }  else {
>>
>> if ( is_method("ACK") ) {
>> if ( t_check_trans() ) {
>> # non loose-route, but stateful
>> ACK; must be an ACK after
>> # a 487 or e.g. 404 from upstream
>> server
>> xlog("non loose-route section\n");
>> #t_relay();
>> exit;
>> } else {
>> # ACK without matching
>> transaction ->
>> # ignore and discard
>> xlog("ACK without matching
>> transaction\n");
>> exit;
>> }
>> }
>>
>>
>>
>>
>
>
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Re: [OpenSIPS-Users] loose_route() sending ACK itself

[Vlad Paiu]

Hello,

Looking in your SIP trace, I see that in the 200OK Contact, you have 
Contact: . , and when OpenSIPS is 
routing the ACK out, it is routing it to


 U 182.XX.XX.164:5060 -> 72.XX.XX.140:5060
ACK sip:72.XX.XX.140;did=7de.9accc6f5 SIP/2.0.

so not sure where exactly is the loop.

Best Regards,

Vlad Paiu
OpenSIPS Developer
http://www.opensips-solutions.com

On 07.04.2015 19:32, Satish Patel wrote:

It is URGENT!!

can some one help?  This is very strange issue and i am stuck here :(

loose_route()  sending ACK/BYE itself instead of next hope :(

I have removed all entries from "domain" table but no luck :(

On Thu, Mar 26, 2015 at 12:09 AM, Satish Patel > wrote:


Hi,

senario:

[UA]-[Opensips]-[Freeswitch]


UA sending correct ACK to freeswitch but Opensips loose_route()
sending it to itself and it break dialog, If use
fix_dialog_route() then it works, I don't have any IP address
added in domain table also.

How do i check whether Freeswitch using loose_route for strict route?


I have following script:

if (has_totag()) {

if (loose_route()) {

   if (is_method("BYE")) {
#setflag(ACC_DO); # do accounting ...
#setflag(ACC_FAILED); # ... even if the transaction fails
} else if (is_method("INVITE")) {
# even if in most of the cases is
useless, do RR for
# re-INVITEs alos, as some buggy
clients do change route set
# during the dialog.
record_route();
}

if (check_route_param("nat=yes"))
setflag(NAT);

# route it out to whatever destination was
set by loose_route()
# in $du (destination URI).
route(relay);
 }  else {

if ( is_method("ACK") ) {
if ( t_check_trans() ) {
# non loose-route, but
stateful ACK; must be an ACK after
# a 487 or e.g. 404 from
upstream server
xlog("non loose-route section\n");
#t_relay();
exit;
} else {
# ACK without matching
transaction ->
# ignore and discard
xlog("ACK without matching transaction\n");
exit;
}
}






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Re: [OpenSIPS-Users] loose_route() sending ACK itself

[Satish Patel]

It is URGENT!!

can some one help?  This is very strange issue and i am stuck here :(

loose_route()  sending ACK/BYE itself instead of next hope :(

I have removed all entries from "domain" table but no luck :(

On Thu, Mar 26, 2015 at 12:09 AM, Satish Patel  wrote:

> Hi,
>
> senario:
>
> [UA]-[Opensips]-[Freeswitch]
>
>
> UA sending correct ACK to freeswitch but Opensips loose_route() sending it
> to itself and it break dialog, If use fix_dialog_route() then it works, I
> don't have any IP address added in domain table also.
>
> How do i check whether Freeswitch using loose_route for strict route?
>
>
> I have following script:
>
> if (has_totag()) {
>
> if (loose_route()) {
>
>if (is_method("BYE")) {
> #setflag(ACC_DO); # do accounting ...
> #setflag(ACC_FAILED); # ... even if the
> transaction fails
> } else if (is_method("INVITE")) {
> # even if in most of the cases is useless,
> do RR for
> # re-INVITEs alos, as some buggy clients
> do change route set
> # during the dialog.
> record_route();
> }
>
> if (check_route_param("nat=yes"))
> setflag(NAT);
>
> # route it out to whatever destination was set by
> loose_route()
> # in $du (destination URI).
> route(relay);
>  }  else {
>
> if ( is_method("ACK") ) {
> if ( t_check_trans() ) {
> # non loose-route, but stateful
> ACK; must be an ACK after
> # a 487 or e.g. 404 from upstream
> server
> xlog("non loose-route section\n");
> #t_relay();
> exit;
> } else {
> # ACK without matching transaction
> ->
> # ignore and discard
> xlog("ACK without matching
> transaction\n");
> exit;
> }
> }
>
>
>
>
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Re: [OpenSIPS-Users] loose_route() sending ACK itself

[Bogdan-Andrei Iancu]

Hi,

It may possible be that the received ACK is broken, leading to that kind 
of looping. By broken I mean heaving wrong RURI or Route headers. Can 
you post on a pastebin a sip capture of that call ?


Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 26.03.2015 06:09, Satish Patel wrote:

Hi,

senario:

[UA]-[Opensips]-[Freeswitch]


UA sending correct ACK to freeswitch but Opensips loose_route() 
sending it to itself and it break dialog, If use fix_dialog_route() 
then it works, I don't have any IP address added in domain table also.


How do i check whether Freeswitch using loose_route for strict route?


I have following script:

if (has_totag()) {

if (loose_route()) {

   if (is_method("BYE")) {
#setflag(ACC_DO); # do accounting ...
#setflag(ACC_FAILED); # ... even if 
the transaction fails

} else if (is_method("INVITE")) {
# even if in most of the cases is 
useless, do RR for
# re-INVITEs alos, as some buggy 
clients do change route set

# during the dialog.
record_route();
}

if (check_route_param("nat=yes"))
setflag(NAT);

# route it out to whatever destination was set 
by loose_route()

# in $du (destination URI).
route(relay);
 }  else {

if ( is_method("ACK") ) {
if ( t_check_trans() ) {
# non loose-route, but 
stateful ACK; must be an ACK after
# a 487 or e.g. 404 from 
upstream server

xlog("non loose-route section\n");
#t_relay();
exit;
} else {
# ACK without matching 
transaction ->

# ignore and discard
xlog("ACK without matching 
transaction\n");

exit;
}
}





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[OpenSIPS-Users] loose_route() sending ACK itself

[Satish Patel]

Hi,

senario:

[UA]-[Opensips]-[Freeswitch]


UA sending correct ACK to freeswitch but Opensips loose_route() sending it
to itself and it break dialog, If use fix_dialog_route() then it works, I
don't have any IP address added in domain table also.

How do i check whether Freeswitch using loose_route for strict route?


I have following script:

if (has_totag()) {

if (loose_route()) {

   if (is_method("BYE")) {
#setflag(ACC_DO); # do accounting ...
#setflag(ACC_FAILED); # ... even if the
transaction fails
} else if (is_method("INVITE")) {
# even if in most of the cases is useless,
do RR for
# re-INVITEs alos, as some buggy clients do
change route set
# during the dialog.
record_route();
}

if (check_route_param("nat=yes"))
setflag(NAT);

# route it out to whatever destination was set by
loose_route()
# in $du (destination URI).
route(relay);
 }  else {

if ( is_method("ACK") ) {
if ( t_check_trans() ) {
# non loose-route, but stateful
ACK; must be an ACK after
# a 487 or e.g. 404 from upstream
server
xlog("non loose-route section\n");
#t_relay();
exit;
} else {
# ACK without matching transaction
->
# ignore and discard
xlog("ACK without matching
transaction\n");
exit;
}
}
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