Developer Forum

y remote router is configured to initiate a ISDNdialup to my local
router in event of data cct failure.This works as expected. I need to
be able to use ISDN to dial INTO the remote router on some occasions
even when the data cct is up. I know my authentication is correct but
I can't get it working. Would the remote router use their dialer
string even if the call is being placed from the other side?
******************************
local router
!
interface Dialer4
ip address 10.10.40.1 255.255.255.252
ip nat outside
encapsulation ppp
no ip route-cache
no ip mroute-cache
dialer pool 1
dialer remote-name Remote_rtr
dialer string 011223344
dialer wait-for-carrier-time 10
dialer redial interval 12 attempts 3
dialer string 0123456
dialer load-threshold 26 either
dialer-group 1
no fair-queue
no cdp enable
ppp authentication chap
ppp multilink
!
****************************
! Remote router
!
!
interface Serial1/0:15
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type primary-net5
isdn caller 0188776600
isdn caller 0188776500
no cdp enable
ppp authentication chap
!
!
interface Dialer1
ip address 10.10.40.2 255.255.255.252
encapsulation ppp
no ip route-cache
no ip mroute-cache
dialer pool 1
dialer remote-name Local_router
dialer idle-timeout 300
dialer string 018484848
dialer caller 0188776600
dialer caller 0188776500
dialer load-threshold 1 either
dialer-group 1
no fair-queue
no cdp enable
ppp authentication chap
ppp multilink
!
**************************************
Local_router#
00:22:08: Di4 DDR: Redial: Timeout. Redial on Se1/0:15 for ip
(s=10.10.28.14,
d=10.10.18.198) (attempt 2)
00:22:08: Se1/0:15 DDR: Attempting to dial 011223344
00:22:08: ISDN Se1/0:15: Outgoing call id = 0x8010, dsl 0
00:22:34359738368: ISDN Se1/0:15: Event: Call to 011223344 at 64 Kb/s
00:22:34359738368: ISDN Se1/0:15: process_pri_call(): call id 0x8010,
number 091
386700, speed 64, call type DATA, redialed? f, csm call? f, pdata? f
00:22:34359738432: callED type/plan overridden by call_decode
00:22:34359738432: did't copy oct3a reason: not CALLER_NUMBER_IE
00:22:08: building outgoing channel id for call nfas_int is 0 len is
0
00:22:08: ISDN Se1/0:15: TX ->
Local_router#SETUP pd = 8 callref = 0x0010
00:22:08: Bearer Capability i = 0x8890
00:22:08: Channel ID i = 0xA9839F
00:22:08: Called Party Number i = 0x81, '011223344',
Plan:ISDN, Type:Unknown
00:22:08: ISDN Se1/0:15: RX <- SETUP_ACK pd = 8 callref = 0x8010
00:22:08: Channel ID i = 0xA9839F
00:22:08: ISDN Se1/0:15: LIF_EVENT: ces/callid 1/0x8010 CALL_SETUP_ACK
00:22:08: ISDN Se1/0:15: PRI Event: 16, bchan = 30, call type = DATA
00:22:08: ISDN Se1/0:15: RX <- CALL_PROC pd = 8 callref = 0x8010
00:22:08: ISDN Se1/0:15: LIF_EVENT: ces/callid 1/0x8010
CALL_PROCEEDING
Local_router#
00:22:17: ISDN Se1/0:15: RX <- DISCONNECT pd = 8 callref = 0x8010
00:22:17: Cause i = 0x8592 - No user responding
00:22:17: ISDN Se1/0:15: LIF_EVENT: ces/callid 1/0x8010 CALL_DISC
00:22:17: ISDN Se1/0:15: process_disc_ack(): call id 0x8010, ces 1,
call type DATA cause 0x12
00:22:17: ISDN Se1/0:15: TX -> RELEASE pd = 8 callref = 0x0010
00:22:18: Serial1/0:15: wait for isdn carrier timeout, call id=0x8010
00:22:77309411328: ISDN Se1/0:15: Event: Hangup call to call id 0x8010
00:22:79484283164: ISDN Se1/0:15: process_disconnect(): cal

*************************************************************************

Acts like the remote is configured to use "backup interface" to trigger the
call, in which case as long as the primary link is active, the dialer is
down and cannot be used to answer (or place) any calls. You could change
the backup mode to "dial on demand" or "dialer watch" or try defining a
separate, independent dialer for dial in. Depending upon how many systems
may be dialing in, you may want to consider a virtual template rather than
a dialer per caller.

Good luck and have fun!
--
Dr. Vincent C. Jones, PE
Computer Network Consultant
Networking Unlimited, Inc.
http://www.yqcomputer.com/