Multiple interfaces routing issue (INVITE)

I’ve created a dummy transport on the second server (192.168.89.1) as you requested. I now have 3 transports.

[code]
[transport-udp]
type=transport
protocol=udp
bind=192.168.89.1:5060
local_net=192.168.89.0/24

[transport-dummy]
type=transport
protocol=udp
bind=192.168.87.1:5060
local_net=192.168.87.0/24

[transport-udp-out]
type=transport
protocol=udp
bind=195.162.X.X:5060
local_net=195.162.X.X/29[/code]
Since a client can’t bind to transport-dummy (since the IP is not an actual interface on this server), it doesn’t seem to show up with “pjsip show transports”?

Transport: transport-udp udp 0 0 192.168.89.1:5060 Transport: transport-udp-out udp 0 0 195.162.X.X:5060

Eventually the following is shown during a trace on the initiating host (connected 2nd server):

[code]
<— Transmitting SIP response (909 bytes) to UDP:195.162.X.X:5060 —>
SIP/2.0 404 Not Found
Via: SIP/2.0/UDP 192.168.89.1:5060;rport=5060;received=195.162.X.X;branch=z9hG4bKPj2835eb03-0070-46f8-9430-9d741a3371f4
Call-ID: 434a73a3-b537-45e9-9c22-d7b8cc09f42a
From: sip:asterisk@195.162.X.X;tag=5aa8b918-1d08-4662-9b2b-b9c0ed5cb3e4
To: sip:s@192.168.89.1;tag=z9hG4bKPj2835eb03-0070-46f8-9430-9d741a3371f4
CSeq: 39864 OPTIONS
Accept: application/sdp, application/xpidf+xml, application/cpim-pidf+xml, application/dialog-info+xml, application/simple-message-summary, application/pidf+xml, application/dialog-info+xml, application/pidf+xml, application/simple-message-summary, message/sipfrag;version=2.0
Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REFER, MESSAGE, REGISTER
Supported: 100rel, timer, replaces, norefersub
Accept-Encoding: text/plain
Accept-Language: en
Server: Asterisk PBX 13.6.0
Content-Length: 0

<— Received SIP response (909 bytes) from UDP:192.168.89.1:5060 —>
SIP/2.0 404 Not Found
Via: SIP/2.0/UDP 192.168.89.1:5060;rport=5060;received=195.162.X.X;branch=z9hG4bKPj2835eb03-0070-46f8-9430-9d741a3371f4
Call-ID: 434a73a3-b537-45e9-9c22-d7b8cc09f42a
From: sip:asterisk@195.162.X.X;tag=5aa8b918-1d08-4662-9b2b-b9c0ed5cb3e4
To: sip:s@192.168.89.1;tag=z9hG4bKPj2835eb03-0070-46f8-9430-9d741a3371f4
CSeq: 39864 OPTIONS
Accept: application/sdp, application/xpidf+xml, application/cpim-pidf+xml, application/dialog-info+xml, application/simple-message-summary, application/pidf+xml, application/dialog-info+xml, application/pidf+xml, application/simple-message-summary, message/sipfrag;version=2.0
Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REFER, MESSAGE, REGISTER
Supported: 100rel, timer, replaces, norefersub
Accept-Encoding: text/plain
Accept-Language: en
Server: Asterisk PBX 13.6.0
Content-Length: 0[/code]

The problem still remains…