For the record, how long did you stop Asterisk ?

Lonnie


> On Aug 5, 2018, at 5:48 PM, Michael Knill <michael.kn...@ipcsolutions.com.au> 
> wrote:
> 
> Hi All
> 
> Thanks Lonnie for your idea however this problem occurred again and stopping 
> Asterisk for a while did not fix it.
> I had to reboot again as the only thing that fixes it ☹
> 
> There are some network issues at the site but I cant see why it causes this!
> I have changed out the DSL modem so that's not it.
> 
> Any more ideas?
> 
> Regards
> Michael Knill
> 
> On 5/7/18, 9:44 am, "Michael Knill" <michael.kn...@ipcsolutions.com.au> 
> wrote:
> 
>    Thanks Lonnie. Good call. That will be my next test.
>    PS IP Address stays the same.
> 
>    Regards
>    Michael Knill
> 
>    On 5/7/18, 9:14 am, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com> wrote:
> 
>        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
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>> 
>>   
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> 
> 
>        
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