Hi, Jennifer!
Unfortunately there is no way to change the pinging behavior. If you say
tht pinging works with mhomed on, I think we should focus on fixing
routing when it is enabled.
Did you try to "fix" the reply interface by using force_send_socket()?
Best regards,
Răzvan Crainea
OpenSIPS Solutions
www.opensips-solutions.com
On 05/11/2017 09:28 PM, Jennifer Hashimoto wrote:
Hello,
I’m hoping someone can help me with this problem.
I have an opensips 2.2.2 server that has 3 interfaces listening on debian
Debian has 2 default routes in 2 different routing tables such as is
described here
https://www.thomas-krenn.com/en/wiki/Two_Default_Gateways_on_One_System
I have put mhomed=0 as I do not need to route from one interface to
another - and if i enable mhomed it does not work.
With mhomed off, it sends the reply out the same interface that it
came in as I want.
With mhomed on it seems to look into the default routing table and
find a route, then decide which interface to used based on that - it
does not use the ip rules to figure out which routing table it should
use (ie. ip rule and then ip route list table rt2)
The reason for all this madness is i have 2 separate internet feeds
going through 2 separate routers. If a call comes in one of the
routers, I want to send it back to the same router and to it’s
internet feed. (so that we have symmetrical routing and nat etc works
also so we can maintain redundancy in case one feed goes down)
My issue is that while everything works great with mhomed off,
load_balancer pinging seems to randomly decide which interface to use,
even if i specify a from address.
modparam("load_balancer", "probing_from", “sip:[email protected]")
The from address is always correctly populated when I look at the SIP
message , but the source_ip varies. sometimes it is the ip of the from
address, and sometimes it is another ip on the box. The IP it chooses
is not always routable by the destination so it disables the destination.
Is there a way to specify which interface/ip i want it to probe from?
(when i put mhomed=1 probing works, but then actually sending traffic
doesn’t work as it only looks in the default routing table for a route
to determine which interface to use.)
Thanks,
Jennifer Akemi
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