02-27-2006 01:47 AM - edited 03-03-2019 11:52 AM
how to configure a Router to Dial out Multiple Sites using ISDN PRI
02-27-2006 01:56 AM
What you need to do is to configure a channelized E1 / T1 which allows you to treat each of the PRI ISDN channels as separate BRI channels.
Please check the link below:
and scroll down to the channelized E1 ISDN interfaces section.
You could also consider using Multilink PPP to bundle channels for more bandwidth
HTH
02-28-2006 02:45 AM
i have still not understood.
Remote locations has BRI configured on the router and Central location has PRI configured. The present situation is that BRI dials to PRI.
Now, i want that PRI (central location) should dial BRI(remote location).
how to do it???
help me out
02-28-2006 12:37 PM
Every BRI inteface Must have a telephone number
On a BRI interface you have 2 Channels and on a PRI E1 you have 23 Channels, so basically you can use 1 or 2 channels (PPP Multilink if you want) from PRI central location to your branch BRI
Check how to configure ISDN basic using PRI and BRI on the Cisco website
03-01-2006 03:56 PM
Here is a working configuration from a router dialing another PRI site. It is not exactly what you want but gives you an idea how to configure a PRI (E1)interface. You can have multiple BRIs dialing into a hub site with a PRI.
isdn switch-type primary-net5
controller E1 6/0
pri-group timeslots 1-31
username
interface Serial6/0:15
description *** ***
no ip address
encapsulation ppp
no ip route-cache
dialer pool-member 1
isdn switch-type primary-net5
no cdp enable
ppp authentication chap
ppp multilink
!
interface Dialer6
description *** ***
ip address 10.250.0.138 255.255.255.252
encapsulation ppp
no ip route-cache
no ip mroute-cache
dialer pool 1
dialer remote-name
dialer idle-timeout 600
dialer string
dialer load-threshold 100 either
dialer-group 1
no fair-queue
no cdp enable
ppp authentication chap
ppp multilink
dialer-list 1 protocol ip list 101
access-list 101 permit ip any any
HTH
E.
03-02-2006 01:00 AM
The above configuration is for BRI dialing to PRI.this i know how to do it.
I require dialout from PRI. How PRI(central hub) can dial BRI (remote location)
can somebody plzzzzzzzzzzzzzzz help me out
03-02-2006 03:17 AM
The configuration is for a "PRI"
It can dial out to a BRI site, no problem. I don't know how many spokes you have. If you have multiple you need to modify the config accordingly. There is nothing stopping you from creating multiple dialers, one for each spoke. There are also other ways of doing it. Please refer to the documentation links provided. I don't have a config for T1 PRI, but if your are using Euro ISDN then this is a good start as it is a config from a live network and works....
03-02-2006 08:47 PM
i have around 200 dialers configured at the central location router.5 PRI's are terminated on the central router.
now tell me how to modify the configuration so that PRI's will dial all the BRI's
help me out
03-03-2006 09:56 AM
Since you are using dialers, for each serial interface with 30-B channels you can allocate 15 dialers. Each dialer will correspond to a remote office with BRI (2-B ch).
The dialer will use the PRI associated with the
dialer pool-member
dialer pool
commands.
interface Serial6/2:15
description *** ***
no ip address
encapsulation ppp
no ip route-cache
dialer pool-member 3
isdn switch-type primary-net5
no cdp enable
ppp authentication chap
ppp multilink
interface Dialer1
description *** ***
ip address ...............
encapsulation ppp
no ip route-cache
no ip mroute-cache
dialer pool 3
dialer remote-name
dialer idle-timeout 30
dialer string
dialer load-threshold 100 either
dialer-group 1
no snmp trap link-status
no cdp enable
ppp authentication chap
ppp multilink
There are a lot of documents on CCO which will help you with this. But the config I have given you should work.
Rgds
E.
03-04-2006 12:48 AM
03-04-2006 09:40 AM
The configurations I have given you so far are valid. However assuming it is the clients that initiate traffic to the servers (located at the hub site) then the remote router has to dial first and request a call back from the hub router. Otherwise how would the hub know that the clients need to access the servers and dial out?
The link shows you how to configure call back.
If you don't know how to configure ISDN, please use the attached link to study the configuration guides and then experiment.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fdial_c/index.htm
Rgds
E.
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