[twntaipan]

A@H on a 300mhz notebook. Network uses dyndns because I only have a pppoe internet connection.

My asterisk box has two IAX2 services--voxee and fwd.

For some reason after 24 hours or so asterisk drops both IAX2 registrations.

I have a linux based router (Coyote Linux) which uses ezipupdate to register with dyndns.

There seems to be a correlation with this dropping out when my pppoe connection drops and gets reestablished (that happens sometimes for whatever reason).

My sip VOIP providers (mpc and sipphone) never lose registration.

Any ideas?

[mberlant]

I had a similar problem and solved it this way:

1. In sip.conf, set "externip=my.dyndns.name". This causes the Asterisk service to look up your current IP address every time its sip.conf file is reloaded. Asterisk uses your external IP address for setting up registrations and calls, and when Asterisk cannot supply this number when required calls and/or registrations will fail.

2. In your Linux configuration, set up a cron job to reload your sip.conf file every X minutes. I have mine set to reload every ten minutes, and my crontab entry looks like " 01,11,21,31,41,51 * * * * /usr/sbin/asterisk -r -x 'sip reload' ". My sip.conf reloads at 01, 11, 21, 31, 41, and 51 minutes past every hour. This means that I will be out of service no more than ten minutes every time my IP address gets reset by the PPPoE server.

Try this out and let us know if it helps.

[twntaipan]

Originally Posted by mberlant

I had a similar problem and solved it this way:

1. In sip.conf, set "externip=my.dyndns.name". This causes the Asterisk service to look up your current IP address every time its sip.conf file is reloaded. Asterisk uses your external IP address for setting up registrations and calls, and when Asterisk cannot supply this number when required calls and/or registrations will fail.

2. In your Linux configuration, set up a cron job to reload your sip.conf file every X minutes. I have mine set to reload every ten minutes, and my crontab entry looks like " 01,11,21,31,41,51 * * * * /usr/sbin/asterisk -r -x 'sip reload' ". My sip.conf reloads at 01, 11, 21, 31, 41, and 51 minutes past every hour. This means that I will be out of service no more than ten minutes every time my IP address gets reset by the PPPoE server.

Try this out and let us know if it helps.

I have the 'externip' in sip.conf, but I am confused as to why IAX needs that. I thought the whole point of the iax protocol was to be non-nat-dependent.

[mberlant]

I agree that it shouldn't be blinded by NAT, but the clue I took from your symptoms is that you seem to be losing IAX whenever your ISP's PPPoE server hiccups or resets and changes your IP address.

With no internal reason for your Asterisk to resync with the IAX servers and no way for the IAX servers to learn your new IP address, we need to introduce such a reset to your Asterisk. Since we are doing this anyway, it makes sense to synchronize your externip= to your FQDN at the same time, even though it should not be directly required by IAX.

By the way, did it work?

[twntaipan]

Originally Posted by mberlant

By the way, did it work?

I just set the cron job. I'll let you know.

Thanks for the help!