23 Jun
2016
23 Jun
'16
12:32 p.m.
Hey all,
I'm looking to put Kamailio behind a TCP load balancer that is SIP-unaware.
My application is deployed in AWS and I'm tying to place Kamailio behind an
ELB.
For the most part, everything is fine. For my specific implementation I'm
disabling UDP as a signaling transport and using only TLS. This enables me
to not have to worry about a SIP-aware LB at the edge because replies to an
incoming request will be sent over the existing established TCP socket
(avoiding any crazy routing requirements).
However - this poses an issue with source addresses. Does Kamailio support
anything like the proxy protocol (
http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt) for getting TCP
stream information from a load balancer? Do I need to go back to exposing
it directly to the world so that I can get source addresses?
Thanks,
Colin
23 Jun
23 Jun
3:34 p.m.
Hello,
is the tcp load balancer changing the source address, like accepting the
connection from the phone and then opening one to kamailio?
Do you need haproxy because of other reasons or only for sip?
A kamailio load balancer (sip aware) is also quite fast.
Cheers,
Daniel
On 23/06/16 04:32, Colin Morelli wrote:
Hey all,
I'm looking to put Kamailio behind a TCP load balancer that is
SIP-unaware. My application is deployed in AWS and I'm tying to place
Kamailio behind an ELB.
For the most part, everything is fine. For my specific implementation
I'm disabling UDP as a signaling transport and using only TLS. This
enables me to not have to worry about a SIP-aware LB at the edge
because replies to an incoming request will be sent over the existing
established TCP socket (avoiding any crazy routing requirements).
However - this poses an issue with source addresses. Does Kamailio
support anything like the proxy protocol
(http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt) for
getting TCP stream information from a load balancer? Do I need to go
back to exposing it directly to the world so that I can get source
addresses?
Thanks,
Colin
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla
http://www.asipto.com - http://www.kamailio.org
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
8:57 p.m.
Hi Daniel,
Yes it is actually terminating and opening a new connection.
I don't need HAProxy for anything at the moment, I was mentioning it for
its support of the proxy protocol which enables applications to get source
address information behind TCP load balancers.
I'm not so much worried about the speed of kamailio - I'm confident it's
quite fast. But for every piece of infrastructure I need to stand up,
there's another opportunity for failure. Being able to use an ELB at the
edge lets me place some of that hard work on Amazon, who has already
thought of things like DNS load balancing, multi zone failover, etc.
I think it'd be great if Kamailio could support something like proxy
protocol to allow this scenario to work (it's just a single line sent right
after a TCP connection is opened)
Best,
Colin
On Thu, Jun 23, 2016 at 1:34 AM Daniel-Constantin Mierla <miconda(a)gmail.com>
wrote:
Hello,
is the tcp load balancer changing the source address, like accepting the
connection from the phone and then opening one to kamailio?
Do you need haproxy because of other reasons or only for sip?
A kamailio load balancer (sip aware) is also quite fast.
Cheers,
Daniel
On 23/06/16 04:32, Colin Morelli wrote:
Hey all,
I'm looking to put Kamailio behind a TCP load balancer that is
SIP-unaware. My application is deployed in AWS and I'm tying to place
Kamailio behind an ELB.
For the most part, everything is fine. For my specific implementation I'm
disabling UDP as a signaling transport and using only TLS. This enables me
to not have to worry about a SIP-aware LB at the edge because replies to an
incoming request will be sent over the existing established TCP socket
(avoiding any crazy routing requirements).
However - this poses an issue with source addresses. Does Kamailio support
anything like the proxy protocol (
http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt) for getting
TCP stream information from a load balancer? Do I need to go back to
exposing it directly to the world so that I can get source addresses?
Thanks,
Colin
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
listsr-users@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierlahttp://www.asipto.com -
http://www.kamailio.orghttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
24 Jun
24 Jun
3:16 p.m.
Hello,
On 23/06/16 12:57, Colin Morelli wrote:
Hi Daniel,
Yes it is actually terminating and opening a new connection.
I don't need HAProxy for anything at the moment, I was mentioning it
for its support of the proxy protocol which enables applications to
get source address information behind TCP load balancers.
I'm not so much worried about the speed of kamailio - I'm confident
it's quite fast. But for every piece of infrastructure I need to stand
up, there's another opportunity for failure. Being able to use an ELB
at the edge lets me place some of that hard work on Amazon, who has
already thought of things like DNS load balancing, multi zone
failover, etc.
I think it'd be great if Kamailio could support something like proxy
protocol to allow this scenario to work (it's just a single line sent
right after a TCP connection is opened)
I haven't found any need myself for
using haproxy, and as we work as a
community adding features as one needs them, if someone will submit a
patch for support of haproxy, will be considered, of course. Personally
I have no haproxy around, so not something that I quickly look further
at such feature.
Cheers,
Daniel
Best,
Colin
On Thu, Jun 23, 2016 at 1:34 AM Daniel-Constantin Mierla
<miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote:
Hello,
is the tcp load balancer changing the source address, like
accepting the connection from the phone and then opening one to
kamailio?
Do you need haproxy because of other reasons or only for sip?
A kamailio load balancer (sip aware) is also quite fast.
Cheers,
Daniel
On 23/06/16 04:32, Colin Morelli wrote:
--
Daniel-Constantin Mierla
http://www.asipto.com - http://www.kamailio.org
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Hey all,
I'm looking to put Kamailio behind a TCP load balancer that is
SIP-unaware. My application is deployed in AWS and I'm tying to
place Kamailio behind an ELB.
For the most part, everything is fine. For my specific
implementation I'm disabling UDP as a signaling transport and
using only TLS. This enables me to not have to worry about a
SIP-aware LB at the edge because replies to an incoming request
will be sent over the existing established TCP socket (avoiding
any crazy routing requirements).
However - this poses an issue with source addresses. Does
Kamailio support anything like the proxy protocol
(http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt) for
getting TCP stream information from a load balancer? Do I need to
go back to exposing it directly to the world so that I can get
source addresses?
Thanks,
Colin
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla
http://www.asipto.com - http://www.kamailio.org
http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -
http://www.linkedin.com/in/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
list
sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
4 Jun
4 Jun
3:06 p.m.
Hi Daniel & Colin
I am trying to deploy kamailio in kubernetes. I am having the same
problems like I have to place my kamailio load balancer behind a TCP
loadbalancer (ELB) for high availability. ELB supports proxy-pass
header(for TCP) and x-forward-for header (for HTTP) to send the real source
IPs of the clients to the applications behind ELBs.
So How do we handle this in kamailio.. ?
Thanks
Siva
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4 comments
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participants (3)
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Colin Morelli -
Daniel-Constantin Mierla -
siva chirravuri