11 Mar
2024
11 Mar
'24
5:43 p.m.
hi,
i have kamailio acting as SBC
i need hide topology like this
ds_select_dst(DSP_GRP_TRUNK, "6");
$tu = $(tu{re.subst,/PRIVATE_IP/IP_OF_CURRENT_SELECTED_DISPATCHER/g});
what is best way for IP extraction from $du?
thanks
Marek
11 Mar
11 Mar
7:32 p.m.
You can obtain the destination set IP from $dd, or $(du{uri.host}). However, you can't
just modify the To URI like that.
You will need to do it in a way that doesn't break standards-based proscriptions about
what a proxy can do, otherwise endpoint A can look at the modified header received in
responses from endpoint B and say, "I didn't send that!"
Kamailio provides such a mechanism. In brief, it conceals the in-flight alterations to the
To URI from endpoint A:
https://kamailio.org/docs/modules/5.8.x/modules/uac.html#uac.f.uac_replace_…
-- Alex
On 11 Mar 2024, at 12:43, marek via sr-users <sr-users(a)lists.kamailio.org> wrote:
hi,
i have kamailio acting as SBC
i need hide topology like this
ds_select_dst(DSP_GRP_TRUNK, "6");
$tu = $(tu{re.subst,/PRIVATE_IP/IP_OF_CURRENT_SELECTED_DISPATCHER/g});
what is best way for IP extraction from $du?
thanks
Marek
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--
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800
15 Mar
15 Mar
10:56 a.m.
thanks
because of "There is also a limitation regarding the use of the
“msg_apply_changes()” function together with the “uac_replace_*”
functions for messages that are loose-routed (e.g. Re-INVITE requests).
In this case you need to call the “loose_route()” function after the
replace and msg_apply_changes. Otherwise Kamailio can create replies
with wrong From/To headers (e.g. for the 100 - Trying reply in the
Re-INVITE example)."
can you confirm the correct practice is
...
ds_select_dst(TRUNK, "6");
uac_replace_to("sip:" + $tU + "@" + $dd);
msg_apply_changes();
loose_route();
...
record_route();
xlog("L_NOTICE", "tu $tu \n");
route(RELAY);
or is it better use restore_mode =AUTO + dialog ?
Marek
Dne 2024-03-11 v 19:32 Alex Balashov via sr-users napsal(a):
You can obtain the destination set IP from $dd, or
$(du{uri.host}). However, you can't just modify the To URI like that.
You will need to do it in a way that doesn't break standards-based proscriptions
about what a proxy can do, otherwise endpoint A can look at the modified header received
in responses from endpoint B and say, "I didn't send that!"
Kamailio provides such a mechanism. In brief, it conceals the in-flight alterations to
the To URI from endpoint A:
https://kamailio.org/docs/modules/5.8.x/modules/uac.html#uac.f.uac_replace_…
-- Alex
On 11 Mar 2024, at 12:43, marek via sr-users <sr-users(a)lists.kamailio.org> wrote:
>
> hi,
>
> i have kamailio acting as SBC
>
> i need hide topology like this
>
> ds_select_dst(DSP_GRP_TRUNK, "6");
>
> $tu = $(tu{re.subst,/PRIVATE_IP/IP_OF_CURRENT_SELECTED_DISPATCHER/g});
>
>
> what is best way for IP extraction from $du?
>
> thanks
>
> Marek
>
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
> To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org
> Important: keep the mailing list in the recipients, do not reply only to the
sender!
> Edit mailing list options or unsubscribe:
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Alex Balashov -
marek