| Author |
ISDN routing problem!!
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| Hi guys - can anyone see the problem with this:
I have an ISDN simulator with a 1003 and a 1603 routing rip between them. I've cut out as much crap out of the config and have just got basic ppp running on each end.
I'm trying to get either end to initialise a single B channel call. But instead two calls fire up straight away.
I'v tried stripping back the config so only one router dials and a single call is made - however the call fails and it does not route!!
The configs are as follows.
Cheerz.
Bugz.
******************************
***********
version 11.1
no service pad
service udp-small-servers
service tcp-small-servers
!
hostname 1003
!
enable secret 5 $1$G/YM$D9cMgSIEZpgJiVfARnFDY0
enable password cisco
!
isdn switch-type basic-net3
!
interface Ethernet0
ip address 192.168.1.1 255.255.255.0
!
interface BRI0
ip address 192.168.2.2 255.255.255.0
encapsulation ppp
dialer map ip 192.168.2.1 94295172
dialer-group 1
!
no ip classless
ip route 0.0.0.0 0.0.0.0 192.168.2.1
dialer-list 1 protocol ip permit
!
line con 0
line vty 0 4
password telnet
login
!
******************************
***********
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 1603
!
enable secret 5 $1$KOJD$hbvv/.vFLMR9gCgKqZz.Q1
enable password cisco
!
ip subnet-zero
isdn switch-type basic-net3
!
!
!
!
!
interface Ethernet0
ip address 172.20.9.107 255.255.255.0
no ip directed-broadcast
!
interface Serial0
no ip address
no ip directed-broadcast
no ip mroute-cache
shutdown
no fair-queue
!
interface BRI0
ip address 192.168.2.1 255.255.255.0
no ip directed-broadcast
encapsulation ppp
dialer map ip 192.168.2.2 94295173
dialer-group 1
isdn switch-type basic-net3
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.2.2
!
dialer-list 1 protocol ip permit
!
line con 0
transport input none
line vty 0 4
password telnet
login
!
end | |
| Hippo 2002-09-24, 12:45 am |
| First thing I noticed is that in the show config outputs for both routers, there is no statement 'router rip'.
More later when I have time to compare this against a live config on an ISDN router I have here at work.
HTH
Hippo
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| Thanks for taking the time to have a look Hippo.
I have tried it with and without RIP with the same results  I left it with IP routing enabled and a default route in either direction.
Thanks again,
Bugz. | |
| Yankee 2002-09-24, 3:08 am |
| look into the dialer load-threshold command.
Yankee | |
| edmonds_robert 2002-09-24, 8:39 am |
| Check out the following link:
http://www.cisco.com/warp/public/131/mppp-ddr.html#one
You need the following commands to enable multilink ppp:
ppp multilink
dialer load-threshold load [outbound | inbound | either] | |
| Yankee 2002-09-24, 8:55 am |
| quote:
Originally posted by edmonds_robert
Check out the following link:
http://www.cisco.com/warp/public/131/mppp-ddr.html#one
You need the following commands to enable multilink ppp:
ppp multilink
dialer load-threshold load [outbound | inbound | either]
Because he stated he was interested in making a call on only one channel PPP multilink is of no value. I stand by the dialer load-threshhold with a 255 or whatever the highest allowable number is to keep it just one channel.
Yankee | |
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| Yankee your right - I just want the one B channel up.
I tried the isdn load-threshold 255 command on both routers and it still does the same!!!
Its like it can only send data in one direction at a time. If one B channel is up and I do a ping - they time out until the 2nd B channel is raised then the pings are OK!!
How frustrating!!! | |
| mabrouk 2002-09-25, 2:58 am |
| At the global exec mode type
Router#show dialer interface bri 0
Then copy/paste the output for both routers | |
| Yankee 2002-09-25, 3:07 am |
| you have each end dialing one number so both channels come up. Remove the number from one dialer map statement and keep the dialer load threshold on both ends.
Yankee | |
|
| Thanks to everyone on this.
It turns out I had a faulty port on the ISDN simulator. hence the first call fired up and nothing happened. The second call fired up and it began routing!!!
I have swapped ports on the ISDN sim and it is working fine on the one B channel which is what I wanted!! ( I have also removed one of the "dialer map"s to do this).
Thanks again esp. Yankee for taking the time on this one 
Bugz. |
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