When user is registered everything is OK. The problem appears when I
send a call to another proxy or carrier. With UDP transport opensips
correctly detects an outgoing interface and forwards a call. With
TCP/TLS transport opensips is not that smart. Found the place in code
which detects an outgoing socket and it just takes the first interface
for TCP with a comment that it's too complicated to detect it properly.
It means if you have a proxy with multiple LAN/WAN interfaces you can't
just forward calls to different trunks and have to manually manage
force_send_socket().
And unfortunately this trick with $fs doesn't work for BIN and I just
can't have cluster neighbors in different segments of my network.
mhomed =1 will make sure that the outgoing interface towards user A is
the interface on which user A has registered.
Hence you need to be very very careful with mhomed=1.
I use force_send_socket when I a have a mixed environment (e.g users
that register, connection to provider without registration, etc).
these are my 2 drops of wisdom :-)
as for BIN, that I can't explain as I never used that type of interface.
.
Op di 30 jul. 2019 om 17:16 schreef Vitalii Aleksandrov
<vitalik.v...@gmail.com <mailto:vitalik.v...@gmail.com>>:
Hi,
Have a problem with a multihomed proxy which doesn't select outgoing
interface correctly. Found similar topics where people discussed
usage
of force_send_socket() when they want to force opensips to use some
interface.
As far as I understood "mhomed=1" is the option which forces
opensips to
select a proper outgoing interface in multihomed environment. This
options really works, but unfortunately only for UDP. When
opensips has
multiple TCP / TLS / BIN interfaces, opensips just takes the first
from
the list which is not always correct and fails to establish an
outgoing
connection.
Since I have a module that detects an outgoing interface I can use
this
info with $fs to force correct socket for SIP. Unfortunately this
trick
doesn't work for BIN and it's not possible to setup a multihomed
opensips with clustering neighbors in both internal and external
networks.
Is there any workaround for BIN?
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