Michael, My theory has always been your problem is with an upstream firewall.
Stopping asterisk for a period of time may allow upstream firewall states to expire. By rebooting AstLinux you will do the same (stop/start Asterisk) and if you have PPPoE you may pull a different IP address which will bypass any upstream states. From all you have described, this looks to me to be an upstream issue relative to AstLinux. Lonnie > On Jul 4, 2018, at 4:56 PM, Michael Knill <michael.kn...@ipcsolutions.com.au> > wrote: > > And yes good test. Of course a firewall restart does not clear translations. > Am I able to clear firewall translations without waiting for them to time out > which is what I assume you are doing here? > It would have to be dome from a remote session as well e.g. through the > firewall. > > Regards > Michael Knill > > On 4/7/18, 10:41 pm, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com> wrote: > >> So my questions are: >> • Is tcpdump BEFORE the firewall? > > For incoming packets tcpdump is before the firewall, for outgoing packets > tcpdump is after the firewall, ie. > -- > wire -> NIC -> tcpdump -> netfilter/firewall > > netfilter/firewall -> tcpdump -> NIC -> wire > -- > so tcpdump does not see outbound packets blocked by the firewall. > > >> • What tests should I do next? > > Have you ever tried ... > -- > service asterisk stop > sleep 90 > service asterisk init > -- > > > Lonnie > > > > > >> On Jul 3, 2018, at 10:19 PM, Michael Knill >> <michael.kn...@ipcsolutions.com.au> wrote: >> >> Back to the ongoing saga of SIP Options ping not working. This one is a bit >> different though. Here is the scenario: >> >> • Can SSH into box fine and network connectivity is fine >> • Find IP Address based SIP Trunk is UNREACHABLE. Can ping provider >> from the box >> • Asterisk SIP Debug shows SIP Options sent but none received. This is >> also the case using tcpdump on the ppp0 interface >> • Asterisk reload and Firewall restart did not fix the problem. The >> system needed a full reboot for the trunk to be REACHABLE >> >> So my questions are: >> • Is tcpdump BEFORE the firewall? >> • Can you think of what the issue could be? >> • What tests should I do next? >> >> Unfortunately (or fortunately) this happens very infrequently so the fix >> will be a long confirmation period. >> >> Thanks all! >> >> Regards >> Michael Knill >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, Slashdot.org! >> http://sdm.link/slashdot_______________________________________________ >> Astlinux-users mailing list >> Astlinux-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/astlinux-users >> >> Donations to support AstLinux are graciously accepted via PayPal to >> pay...@krisk.org. > > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Astlinux-users mailing list > Astlinux-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/astlinux-users > > Donations to support AstLinux are graciously accepted via PayPal to > pay...@krisk.org. > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Astlinux-users mailing list > Astlinux-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/astlinux-users > > Donations to support AstLinux are graciously accepted via PayPal to > pay...@krisk.org. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Astlinux-users mailing list Astlinux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to pay...@krisk.org.
