Court Campbell
2022-Jul-27 15:34 UTC
[asterisk-users] DUNDi peers disconnect after being connected for months or years, cannot reconnect again
I realize that the heyday of DUNDi was about 2008, and that there's less and
less information online about it and lots of people don't use it anymore and
use static IAX trunks instead. But we have 53 asterisk phone systems connecting
our locations, and so creating static IAX trunks (even with a regional hub and
spoke model) is a significant undertaking.
We've had issues with DUNDi peers disconnecting in the past and with Elastix
used to have to do an amportal restart on the PBX to have it reconnect again.
But the new issue that we're seeing is that the peer refuses to reconnect
again, even after changing the long secret key in dundi_general, the MAC address
of the VM the PBX is running on, the IP of the PBX and recreating the
public/private keypair. The PBX that disconnected will not reconnect to any
DUNDi peers at all, even to a completely new VM that we stand up at the same
site on the same virtual switch on the same host. We are only trying to do
inter-site extension dialing, not routing external calling between sites using
DUNDi.
I'm also okay with giving up on DUNDi if anybody else has a less labour
intensive way of routing extension dialing between that many PBXes than a web of
static IAX trunks.
Here are the config files. I removed all the ; commented lines in dundi.conf to
save space.
Iax_custom.conf
[dundi]
type=user
dbsecret=dundi/secret
context=ext-local
disallow=all
allow=ulaw
allow=g726
dundi.conf
[general]
#include dundi_general_custom.conf
ttl=32
autokill=yes
[mappings]
#include dundi_mappings_custom.conf
#include dundi_peers_custom.conf
dundi_mappings.conf
priv =>
dundi-priv-canonical,0,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial
priv =>
dundi-priv-customers,100,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial
priv =>
dundi-priv-via-pstn,400,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial
dundi_general.conf
organizationlocalitystateprovcountryemailphonedepartmentsecret=secret key
entityid=MAC address
dundi_peers.conf
[server A MAC]
model=symmetric
hostinkeyoutkeyhis_status=connected
include=priv
permit=priv
qualify=yes
order=primary
[server B MAC]
model=symmetric
hostinkeyoutkeyhis_status=connected
include=priv
permit=priv
qualify=yes
order=primary
extensions_custom.conf
[from-internal]
include => from-internal-noxfer
include => from-internal-xfer
include => dundi-priv-lookup
include => bad-number ; auto-generated
exten => h,1,Macro(hangupcall)
; ********************************************
; CONFIGURACION PARA DUNDi
[dundi-priv-canonical]
; Here we include the context that contains the extensions.
exten => _9999X,1,Macro(stdexten,${EXTEN})
;include => ext-local
; Here we include the context that contains the queues.
; include => ext-queues
[dundi-priv-customers]
; If you have customers (or resell services) we can list them here
[dundi-priv-via-pstn]
; Here we include the context with our trunk to the PSTN,
; if we want the other teams can use our trunks
;include => outbound-allroutes
[dundi-priv-local]
; In this context we unify the three contexts, we can use this as
; context of the trunks of dundi iax
include => dundi-priv-canonical
include => dundi-priv-customers
include => dundi-priv-via-pstn
[dundi-priv-lookup]
; This context is responsible for making the search for a number of dundi
; Before you do the search properly define our caller id.
; because if not we have a caller id as 'device<0000>'.
exten => _X.,1,Macro(user-callerid)
exten => _X.,n,Macro(dundi-priv,${EXTEN})
exten => _X.,n,GotoIf($['${DIALSTATUS}' = 'BUSY']?100)
exten => _X.,n,Goto(bad-number,${EXTEN},1)
exten => _X.,100,Playtones(congestion)
exten => _X.,101,Congestion(10)
[macro-dundi-priv]
; This is the macro is called from the context [dundi-priv-lookup]
; It also avoids having loops in the consultations dundi.
exten => s,1,Goto(${ARG1},1)
switch => DUNDi/priv
; ********************************************
Thank you,
Court Campbell
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asterisk at phreaknet.org
2022-Jul-27 16:54 UTC
[asterisk-users] DUNDi peers disconnect after being connected for months or years, cannot reconnect again
On 7/27/2022 11:34 AM, Court Campbell wrote:> > I realize that the heyday of DUNDi was about 2008, and that there’s > less and less information online about it and lots of people don’t use > it anymore and use static IAX trunks instead. But we have 53 asterisk > phone systems connecting our locations, and so creating static IAX > trunks (even with a regional hub and spoke model) is a significant > undertaking. > > We’ve had issues with DUNDi peers disconnecting in the past and with > Elastix used to have to do an amportal restart on the PBX to have it > reconnect again. But the new issue that we’re seeing is that the peer > refuses to reconnect again, even after changing the long secret key in > dundi_general, the MAC address of the VM the PBX is running on, the IP > of the PBX and recreating the public/private keypair. >Do you have any logs/debug demonstrating this?> > The PBX that disconnected will not reconnect to any DUNDi peers at > all, even to a completely new VM that we stand up at the same site on > the same virtual switch on the same host. We are only trying to do > inter-site extension dialing, not routing external calling between > sites using DUNDi. > > I’m also okay with giving up on DUNDi if anybody else has a less > labour intensive way of routing extension dialing between that many > PBXes than a web of static IAX trunks. > >Why not run a centralized lookup scheme for routing, using ENUM or an HTTPS API? That's what I generally see these days for large networks using IAX2 trunking; I've only encountered one setup recently using DUNDi. Assuming that central server is always routing, you then have a single source of truth for call routing.> Here are the config files. I removed all the ; commented lines in > dundi.conf to save space. > > Iax_custom.conf > > [dundi] > > type=user > > dbsecret=dundi/secret > > context=ext-local > > disallow=all > > allow=ulaw > > allow=g726 > > dundi.conf > > [general] > > #include dundi_general_custom.conf > > ttl=32 > > autokill=yes > > [mappings] > > #include dundi_mappings_custom.conf > > #include dundi_peers_custom.conf > > dundi_mappings.conf > > priv => > dundi-priv-canonical,0,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial > > priv => > dundi-priv-customers,100,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial > > priv => > dundi-priv-via-pstn,400,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial > > dundi_general.conf > > organization> > locality> > stateprov> > country> > email> > phone> > department> > secret=secret key > > entityid=MAC address > > dundi_peers.conf > > [server A MAC] > > model=symmetric > > host> > inkey> > outkey> > his_status=connected > > include=priv > > permit=priv > > qualify=yes > > order=primary > > [server B MAC] > > model=symmetric > > host> > inkey> > outkey> > his_status=connected > > include=priv > > permit=priv > > qualify=yes > > order=primary > > extensions_custom.conf > > [from-internal] > > include => from-internal-noxfer > > include => from-internal-xfer > > include => dundi-priv-lookup > > include => bad-number ; auto-generated > > exten => h,1,Macro(hangupcall) > > ; ******************************************** > > ; CONFIGURACION PARA DUNDi > > [dundi-priv-canonical] > > ; Here we include the context that contains the extensions. > > exten => _9999X,1,Macro(stdexten,${EXTEN}) > > ;include => ext-local > > ; Here we include the context that contains the queues. > > ; include => ext-queues > > [dundi-priv-customers] > > ; If you have customers (or resell services) we can list them here > > [dundi-priv-via-pstn] > > ; Here we include the context with our trunk to the PSTN, > > ; if we want the other teams can use our trunks > > ;include => outbound-allroutes > > [dundi-priv-local] > > ; In this context we unify the three contexts, we can use this as > > ; context of the trunks of dundi iax > > include => dundi-priv-canonical > > include => dundi-priv-customers > > include => dundi-priv-via-pstn > > [dundi-priv-lookup] > > ; This context is responsible for making the search for a number of dundi > > ; Before you do the search properly define our caller id. > > ; because if not we have a caller id as 'device<0000>'. > > exten => _X.,1,Macro(user-callerid) > > exten => _X.,n,Macro(dundi-priv,${EXTEN}) > > exten => _X.,n,GotoIf($['${DIALSTATUS}' = 'BUSY']?100) > > exten => _X.,n,Goto(bad-number,${EXTEN},1) > > exten => _X.,100,Playtones(congestion) > > exten => _X.,101,Congestion(10) > > [macro-dundi-priv] > > ; This is the macro is called from the context [dundi-priv-lookup] > > ; It also avoids having loops in the consultations dundi. > > exten => s,1,Goto(${ARG1},1) > > switch => DUNDi/priv > > ; ******************************************** >