[SR-Users] Kamailio Replies in setup with LB

[Andrea Meroni]

Hi all, i have the following setup:

C -> LB-P -> K-P -> LB-S -> K-S

The problem is the following: when K-S (Kamailio Server) replies it relays
the responses to the K-P (Kamailio Proxy) instead of the LB-P
(load-balancer of the proxies). I tried almost every solution: changing
aliases, adding Path headers, changing destination-URI, changing Via:
headers ... But the result is always the same: using transactions it seems
that, even if requests are correctly load-balanced, the replies are not
relayed back following the same path (in particular, referring to the
precedent scheme, a reply for the previous request will follow the path C
<- K-P <- K-S).

Additional information:

- K-P uses as alias the HOSTNAME of LB-P;
- K-S uses as alias the HOSTNAME of LB-S;

Everyone has some hints?

Andrea
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