05-22-2007 08:41 AM
Hi!
I am trying to configure an ISDN line from Paris to Singapore.
The following configs are abstracts from both routers.
I included a log of a success connection and a failing connection.
Of course I cannot get the debug log from Singapore.
The configuration is fine because it works ONCE.
If you try again after the timeout and the releasing of the ISDN line you get
the following when attempting a telnet:
BR0/0:1 LCP: TIMEout: State REQsent
BR0/0:1 LCP: O CONFREQ [REQsent] id 90 len 31
BR0/0:1 LCP: AuthProto CHAP (0x0314C12404)
BR0/0:1 LCP: MagicNumber 0x31878D89 (0x050631878D89)
BR0/0:1 LCP: MRRU 1524 (0x110405F4)
BR0/0:1 LCP: EndpointDisc 1 ROUT_PARIS (0x130C01524F5554546543)
If then you just restart the router in Singapore you can then connect once
again.
When we want to work for a long time we issue a never ending ping to the
router to keep the line open.
I have seen the same behaviour in a forum. Usually the "LCP:O CONFREQ" with
timeout is often pointed as a ISDN / SPEED Mismatch. But in this case I am more
in doubt with a handle release problem in IOS.
I know that version are quite old but do you have a workaround and can you point
me to the most recent firmware than could correct this.
Thanks
Francois M. Malaspina (Nagravision)
05-22-2007 08:38 PM
Hi Francois ,
You are trying to establish an isdn connection from Paris to singapore ...correct...
If you observe the bri interface config of Singapore router you have configured dialer pool-member 1 which is used for lysis isdn connectivity.
Change the Bri config as below and check it once.
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 3
no peer default ip address
isdn switch-type basic-net3
no cdp enable
ppp callback accept
ppp authentication chap
ppp multilink
and
interface Dialer3
ip address 192.168.3.Singapore 255.255.255.0
encapsulation ppp
dialer pool 3
dialer remote-name ROUT_PARIS
dialer idle-timeout 300
dialer-group 1
no peer default ip address
no cdp enable
ppp authentication chap
include dialer caller XXXXX under dialer interface 3.
Thanks,
Satish
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