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showrav017 / jain-sip

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NIO TCP uses incorrect local interface on multihomed host #161

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
My product uses a server with two network interfaces, one for SIP and one for 
management. SIP requests arrive at the server on the SIP interface, where they 
are processed by a firewall application, then passed to the SIP container on 
the management interface. Similarly, outgoing SIP requests should leave the SIP 
container on the management interface, and arrive at the firewall application 
on the SIP interface, which then sends the request to the network on the SIP 
interface.

Using the Linux ss utility, I can see that the SIP container is opening a 
socket on the SIP interface to the firewall application, also on the SIP 
interface. This confuses the firewall application, as it identifies the socket 
from the container by looking for a far end address that matches the management 
interface

Original issue reported on code.google.com by jean.deruelle on 1 May 2015 at 5:26