Connect using single ISDN number

From: Himawan Nugroho (hnugroho@xxxxxxxxxxxxxxxxxxxxx)
Date: Wed Feb 28 2001 - 08:22:52 GMT-3


   
Hi guys,

I tried to connect R1 to R2 using only one ISDN number (from the first B channe
l dialed to the 2nd B channel)
The configuration:
R1
interface BRI0
 ip address 196.1.1.1 255.255.255.0
 encapsulation ppp
 dialer map ip 196.1.1.2 name R2 broadcast 25500598:2
 dialer-group 1
 ppp authentication chap

R2
interface BRI0
 ip address 196.1.1.2 255.255.255.0
 encapsulation ppp
 dialer map ip 196.1.1.1 name R1 broadcast 25500598:1
 dialer-group 1
 ppp authentication chap

When I triggered from R1 using ping, it worked. The ISDN is up, B Channel 1 fro
m R1 dial to B Channel 2 in R2
But when I tried to trigger from R2, the debug result showed layer 3 has active
 but the ping failed

R2#ping 196.1.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 196.1.1.1, timeout is 2 seconds:

03:52:44: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0, TEI 81 changed to up
03:52:44: ISDN BR0/0: TX -> SETUP pd = 8 callref = 0x15
03:52:44: Bearer Capability i = 0x8890
03:52:44: Channel ID i = 0x83
03:52:44: Called Party Number i = 0x80, '25500598'
03:52:44: Called Party SubAddr i = 0x80, 'P1'
03:52:193273569280: ISDN BR0/0: RX <- CALL_PROC pd = 8 callref = 0x95
03:52:193273528320: Channel ID i = 0x89
03:52:193273569280: Display i = 'IIFC', 0x20, 'still', 0x20, 'active'
03:52:193273569280: ISDN BR0/0: RX <- SETUP pd = 8 callref = 0x02
03:52:193273528320: Sending Complete
03:52:193273569280: Bearer Capability i = 0x8890
03:52:193273569280: Channel ID i = 0x8A
03:52:193273569280: Calling Party Number i = 0x2183, '02125500598'
03:52:193273569280: Called Party Number i = 0xA1, '02125500598'
03:52:45: %LINK-3-UPDOWN: Interface BRI0/0:2, changed state to up
03:52:45: %ISDN-6-CONNECT: Interface BRI0/0:2 is now connected to 0212550.0598
03:52:45: ISDN BR0/0: TX -> CONNECT pd = 8 callref = 0x82
03:52:193273569280: ISDN BR0/0: RX <- CONNECT pd = 8 callref = 0x95
03:52:45: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
03:52:45: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to 25500598:1
03:52:45: ISDN BR0/0: TX -> CONNECT_ACK pd = 8 callref = 0x15
03:52:193273569280: ISDN BR0/0: RX <- CONNECT_ACK pd = 8 callref = 0x02
03:52:193273569280: ISDN BR0/0: RX <- RELEASE pd = 8 callref = 0x02
03:52:193273528320: Cause i = 0x829A - Non-selected user clearing ..
03:52:51: %ISDN-6-CONNECT: Interface BRI0/0:2 is now connected to 02125500598
03:52:51: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to 25500598:1 ..
Success rate is 0 percent (0/5)

R2#sh isdn sta
Global ISDN Switchtype = basic-net3
ISDN BRI0/0 interface
        dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 81, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
    Layer 3 Status:
        2 Active Layer 3 Call(s)
    Activated dsl 0 CCBs = 2
        CCB:callid=0x8015, sapi=0x0, ces=0x1, B-chan=1
        CCB:callid=0x11, sapi=0x0, ces=0x1, B-chan=2
    The Free Channel Mask: 0x80000000
    Total Allocated ISDN CCBs = 2

In fact, the ISDN connection was not establish, even layer 3 status from show i
sdn status command showed 2 active layer 3 calls

Any suggestion?

-Himawan-



This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:09 GMT-3