Hi there,
Last week we discovered some problems using NAT/Routers and SIP Clients. We had some work on our local network (exchanging routers) and so our clients were temporarily offline without unregistering correctly. In our mysql sipfriends table were several entries with the same IP (this is normal: our router) and different ports, but some clients (who were off/online) were in that database with the same ports. The Client, which later registered could not call, because "chan_sip.c" failed to authenticate the user (two entries in the database with the same IP / port).
Is there a workaround for this? Can i simply remove duplicate entries like this on registration? I could update the chan_sip.c myself, but i am wondering if someone else had this problem before. And before i alter the source, i would like to know, if this is a good idea to update the data-sets for the users, who have the same IP/port. If there are no solutions/experiences on this list, i will send my message to the -dev list as well.
Thanks in advance,
Carsten Bock
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