> On 6/04/2017, at 1:12 AM, Abdoul Osséni wrote:
>
> Thanks.
>
> This is a network capture taken on Kamailio server that showing VSS
> Monitoring ethernet.
Perhaps your service provider is adding it or something then, but that would be
very unusual. I would have a chat with your network team
On Wed, Apr 05, 2017 at 02:25:29PM +0200, Abdoul Osséni wrote:
> The advantage of the SIP ping options is a bidirectional traffic through
> NAT. I think in this case, my issue will be solved.
Due to some limitations of the nat helper pinger (3 backends, one should
ping at hh:mm:00, the other at hh
Thanks.
This is a network capture taken on Kamailio server that showing VSS
Monitoring ethernet.
---
This is not a LAN network. UAC is on Internet behind a NAT device so I
can't capture the traffic in the network.
According your message, you think UAC send close notify alerts even during
during t
> On 6/04/2017, at 12:25 AM, Abdoul Osséni wrote:
> I have always this issue with NAT devices using VSS-Monitoring protocol.
>
> A network capture shows:
> - Kamailio sends a tcp keepalive
> - The NAT device sends a tck keepalive ACK to Kamailio with a new filed :
> vss-monitoring
>
>
Hello,
if it happens also between INVITE and 200ok or between 200ok and the
ACK, then very likely sending the OPTIONS will not help. Probably the
far end routers have a broken implementation of NAT.
Is this happening only for a specific group of users, or happens
randomly for different users?
Ch
Hello,
Thanks for this feedback.
Here the description of the issue I am trying to solve.
I use already tcp_keepalive.
Call flow is:
UACs --> Nat device --> Kamailio
Transport protocol is TLS.
Kamailio sends TCPs keepalive (tcp_keepalive option) to the softphone
located behind the nat devices
Hello,
nathelper module does ping OPTIONS only for UDP.
For tcp/tls, there is transport layer keepalive:
- https://www.kamailio.org/wiki/cookbooks/5.0.x/core#tcp_keepalive
What is the problem you are trying to solve with this? Maybe there are
some other options for it.
Cheers,
Daniel
On 31.
