16 May
2015
16 May
'15
12:46 a.m.
Hi
I have two boxes with internal and external interfaces. Each has Kamailio at the public
interface and asterisk on the internal one.
Making calls within a box is fine but would like to load balance using the other asterisk
box.
However using dispatcher I have noticed packets are not being routed from Kamailo to the
second asterisk.
Packets from Kamailo are originating from the external interface and sent to the second
asterisk box using private ip address. Off course this is not routable. I have tried
masquerading but no joy. Do I need to change kamailio configuration?
I want to have a set of asterisk boxes behind Kamailio using dispatcher. I'm I
missing a trick?
Eric
16 May
16 May
12:57 a.m.
Hello Eric,
You need to multihome Kamailio so that it is simultaneously present on
the external and internal interfaces:
listen=udp:external.ip:5060
listen=udp:internal.ip:5060
Then, you need to force requests forwarded to the Asterisk boxes to go
out the internal interface explicitly. Prior to t_relay(), set:
$fs = "udp:internal.ip:5060";
If you want Kamailio to stay in the call path for the entire duration of
the dialog, you'll also want to ensure Kamailio puts dual Record-Route
headers in place for the ingress and egress interface. The
'enable_double_rr' modparam to the 'rr' module will ensure this.
-- Alex
On 05/15/2015 05:46 PM, Eric Koome wrote:
Hi
I have two boxes with internal and external interfaces. Each has Kamailio at the public
interface and asterisk on the internal one.
Making calls within a box is fine but would like to load balance using the other asterisk
box.
However using dispatcher I have noticed packets are not being routed from Kamailo to the
second asterisk.
Packets from Kamailo are originating from the external interface and sent to the second
asterisk box using private ip address. Off course this is not routable. I have tried
masquerading but no joy. Do I need to change kamailio configuration?
I want to have a set of asterisk boxes behind Kamailio using dispatcher. I'm I
missing a trick?
Eric
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--
Alex Balashov | Principal | Evariste Systems LLC
303 Perimeter Center North, Suite 300
Atlanta, GA 30346
United States
Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
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Alex Balashov -
Eric Koome