9 Feb
2006
9 Feb
'06
6:55 a.m.
Helge Waastad wrote:
Does anyone else find it interesting to have the ping
also relayed via
the OBP?
If not, I just have to move the registrar more towards the frontend.
We ended up in implementing a simple stand-alone natping application for
a proof-of-concept design using raw sockets for spoofing the OBP
address, mainly for two reasons:
- Performance: a possibility would be to evaluate the Path uri in the
registrar and send a sip-based nat-ping (OPTION) with a pre-set route,
but this would really stress the OBP (assume you've to ping 50.000 UACs
every 60 seconds).
- Simplicity: it would require quite a lot of changes in
registrar/usrloc/nathelper/mediaproxy, so we just query the
received-column of usrloc from the external natping application(s) and
send empty udp packets.
Patches to the registrar and a new path module for accomplishing this
(inserting proper Path headers in an OBP, and taking the
received-address from a Path uri parameter and saving it into usrloc in
a registrar) will be contributed the next days...
Bye,
Andy