Phil Knighton
2008-Dec-11 11:46 UTC
[asterisk-users] Asterisk dies when external access is lost
Hello Looking for some help with a rather odd problem. We have Asterisk 1.4.10 running on a Linux box, within our Windows domain. Our Domain Controller is a Windows 2003 server, providing the normal Windows domain functions, such as DHCP and DNS. When we lose either our Domain Controller (for a reboot/maintenance) or external ADSL access, Asterisk drops all SIP registrations - even internal SIP calls within the building no longer function. All of our SIP clients are assigned static IP addresses, and our incoming lines are via a Zaptel card using (currently) analog lines from our national telco. When the SIP registrations drop, Asterisk will still answer incoming calls via the Zap channels, but can't forward them anywhere. What is most confusing is a recent issue when our ADSL connections were all offline, and despite everything internal to the network working perfectly, all of the SIP phones stopped working and left us without phones for 4 hours. I'm suspecting that these two issues (losing connectivity when DC is unavailable and losing connectivity when ADSL drops) are related, but I can't figure out how? I'm sure I'm missing something simple in the config, but I've been tinkering with this issue since we were using Asterisk 1.2 and I've still not resolved it. Any help or comments would be appreciated... Thanks in advance Phil Phil Knighton -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20081211/977ea40d/attachment.htm
Philipp Kempgen
2008-Dec-11 12:06 UTC
[asterisk-users] Asterisk dies when external access is lost
Phil Knighton schrieb:> When we lose either our Domain Controller (for a reboot/maintenance) or > external ADSL access, Asterisk drops all SIP registrations - even > internal SIP calls within the building no longer function.Not sure if it cures your problem but I would suggest running a caching nameserver on the Asterisk servers. http://lists.digium.com/pipermail/asterisk-users/2008-September/218764.html Philipp Kempgen -- http://www.das-asterisk-buch.de - http://www.the-asterisk-book.com Amooma GmbH - Bachstr. 126 - 56566 Neuwied -> http://www.amooma.de Gesch?ftsf?hrer: Stefan Wintermeyer, Handelsregister: Neuwied B14998 --
Geraint Lee
2008-Dec-11 12:11 UTC
[asterisk-users] Asterisk dies when external access is lost
just an idea, could it have something to do with DNS being unavailable, but that wouldn't really explain why it would die when ADSL is down... hmmmm. Cheers Geraint 2008/12/11 Phil Knighton <phil.knighton at mjog.com>> Hello > > Looking for some help with a rather odd problem. We have Asterisk 1.4.10 > running on a Linux box, within our Windows domain. Our Domain Controller is > a Windows 2003 server, providing the normal Windows domain functions, such > as DHCP and DNS. > > When we lose either our Domain Controller (for a reboot/maintenance) or > external ADSL access, Asterisk drops all SIP registrations - even internal > SIP calls within the building no longer function. > > All of our SIP clients are assigned static IP addresses, and our incoming > lines are via a Zaptel card using (currently) analog lines from our national > telco. When the SIP registrations drop, Asterisk will still answer incoming > calls via the Zap channels, but can't forward them anywhere. > > What is most confusing is a recent issue when our ADSL connections were all > offline, and despite everything internal to the network working perfectly, > all of the SIP phones stopped working and left us without phones for 4 > hours. > > I'm suspecting that these two issues (losing connectivity when DC is > unavailable and losing connectivity when ADSL drops) are related, but I > can't figure out how? I'm sure I'm missing something simple in the config, > but I've been tinkering with this issue since we were using Asterisk 1.2 and > I've still not resolved it. > > Any help or comments would be appreciated... > > Thanks in advance > > Phil > > > Phil Knighton > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20081211/70fc59b7/attachment.htm
Doug Lytle
2008-Dec-11 12:11 UTC
[asterisk-users] Asterisk dies when external access is lost
Phil Knighton wrote:> Hello > > Looking for some help with a rather odd problem. We have Asterisk > 1.4.10 running on a Linux box, within our Windows domain. Our Domain > Controller is a Windows 2003 server, providing the normal Windows > domain functions, such as DHCP and DNS. > > When we lose either our Domain Controller (for a reboot/maintenance) > or external ADSL access, Asterisk drops all SIP registrations - even > internal SIP calls within the building no longer function.Are the phones Polycom? Doug -- Ben Franklin quote: "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."
Phil Knighton
2008-Dec-11 12:56 UTC
[asterisk-users] Asterisk dies when external access is lost
Doug, No, the phones are all Snom phones - a mix of 290s (actually elmeg IP190), 320s and 360s. Mostly using firmware v6. Cheers Phil -----Original Message----- From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Doug Lytle Sent: 11 December 2008 12:12 To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] Asterisk dies when external access is lost Phil Knighton wrote:> Hello > > Looking for some help with a rather odd problem. We have Asterisk > 1.4.10 running on a Linux box, within our Windows domain. Our Domain > Controller is a Windows 2003 server, providing the normal Windows > domain functions, such as DHCP and DNS. > > When we lose either our Domain Controller (for a reboot/maintenance) > or external ADSL access, Asterisk drops all SIP registrations - even > internal SIP calls within the building no longer function.Are the phones Polycom? Doug -- Ben Franklin quote: "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety." _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users