Hi Helge,
I recall several discussions regarding usage of ICMP error reports for UDP in order to triger failover. The result was that not all OS are able to properly deliver ICMP reports to the applications, so no common and no reliable way of doing it was found.
regards, bogdan
Helge Waastad wrote:
Hi, (just a little bit on the side-bar)
I've had some discussion with the developer of twinkle (which is, BTW, a very nice linux softphone) regarding handeling icmp port unreachable and switching to a lower priority SIP router (by DNS SRV).
It seems like the dist I'm using (Dapper, kernel 2.6.15-26) will not easily allow the applications to receive the icmp on an unconnected udp socket, hence failover will not work. However on an 2.6.11.4-21.11 kernel it works.
Does anyone know if there are any kernel opts which should be added for having this kind of support?
Just my thoughts this morning......
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