The problem is that, when one time user is connected and disconnect the line,, another user can connect through this line at around one or two min.. I change the line configration different way but result is same, no change...Tthe show ver, sh run and debug modem is as follow:
------------------ show version ------------------
Cisco Internetwork Operating System Software
IOS (tm) 3600 Software (C3640-I-M), Version 12.1(4), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Wed 30-Aug-00 04:49 by cmong
Image text-base: 0x60008940, data-base: 0x60898000
ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (f
c1)
SABAS uptime is 6 weeks, 5 days, 1 hour, 30 minutes
System returned to ROM by power-on
System image file is "flash:c3640-i-mz_121-4.bin"
cisco 3640 (R4700) processor (revision 0x00) with 28672K/4096K bytes of memory.
Processor board ID 07674692
R4700 CPU at 100Mhz, Implementation 33, Rev 1.0
Bridging software.
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
32 terminal line(s)
DRAM configuration is 64 bits wide with parity disabled.
125K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102
------------------ show running-config ------------------
Building configuration...
Current configuration : 20712 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname SABAS
!
logging buffered 20000 debugging
no logging console
enable password 7
!
ip subnet-zero
ip name-server 168.187.9.2
ip name-server 168.187.9.3
ip name-server 208.222.12.24
!
chat-script offhook "" "ATH1" OK \c
chat-script mod ABORT ERROR ABORT BUSY "" "AT" OK "ATDT \T" TIMEOUT 30 CONNECT \
c
chat-script callback ABORT ERROR ABORT BUSY "" "ATZ" OK "ATDT \T" TIMEOUT 30 CON
NECT \c
!
!
!
interface FastEthernet0/0
ip address 192.168.2.254 255.255.255.0
duplex auto
speed auto
!
interface Group-Async1
ip unnumbered FastEthernet0/0
encapsulation ppp
ip tcp header-compression passive
no ip mroute-cache
async dynamic address
async mode interactive
peer default ip address pool g1
compress mppc
ppp authentication pap
group-range 33 48
!
interface Group-Async3
ip unnumbered FastEthernet0/0
encapsulation ppp
no ip mroute-cache
async mode interactive
peer default ip address pool g1
compress mppc
ppp authentication pap
group-range 97 112
!
router rip
network 192.168.2.0
!
ip local pool g1 192.168.2.221 192.168.2.253
no ip classless
ip route 0.0.0.0 0.0.0.0 192.168.2.10
ip route 192.168.1.0 255.255.255.0 192.168.2.10
no ip http server
!
!
line con 0
exec-timeout 0 0
password 7
logging synchronous
transport input none
line 33 48
timeout login response 3
autoselect ppp
script dialer mod
login local
modem InOut
transport preferred none
transport input all
transport output none
stopbits 1
flowcontrol hardware
line 97 112
timeout login response 3
autoselect ppp
script dialer mod
login local
modem InOut
transport input all
stopbits 1
flowcontrol hardware
line aux 0
line vty 0 4
exec-timeout 0 0
password 7
logging synchronous
login
!
end
Debug modem:-
Config change: asserting DTR
/1 Mcom: in modem state 'Dialing/Answering'
/1 Mcom: in modem state 'Incoming ring'
/1 Mcom: in modem state 'Waiting for Carrier'
/1 Mcom: in modem state 'Connected'
/1 Mcom: CONNECT at 21600/14400(Tx/Rx), V34, LAPM, V42bis, Answer
DSR came up
Modem: IDLE->(unknown)
Autoselect started
create timer type 0, 120 seconds
Autoselect sample 7E
Autoselect sample 7EFF
Autoselect sample 7EFF7D
Autoselect sample 7EFF7D23
utoselect cmd: ppp negotiate
destroy timer type 0 (OK)
EXEC creation
create timer type 1, 600 seconds
destroy timer type 1 (OK)
destroy timer type 0
-UPDOWN: Interface Async98, changed state to up
/1 Mcom: PPP escape map: Tx map = FFFFFFFF, Rx map = 0
/1 Mcom: switching to PPP mode
/1 Mcom: PPP escape map: Tx map = 0, Rx map = 0
OTO-5-UPDOWN: Line protocol on Interface Async98, changed state t
CONFIG_I: Configured from console by aha on vty0 (192.168.1.58)
/1 Mcom: in modem state 'Disconnecting'
/1 Mcom: DISCONNECT, duration = 00:00:51, reason (0xE) Remote Lin
DSR was dropped
Modem: READY->(unknown)
OTO-5-UPDOWN: Line protocol on Interface Async98, changed state t
/1 Mcom: in modem state 'Idle'
dropping DTR, hanging up
Async Int reset: Dropping DTR
Modem: HANGUP->(unknown)
/1 Mcom: PPP escape map: Tx map = FFFFFFFF, Rx map = 0
cleanup pending. Delaying DTR
-CHANGED: Interface Async98, changed state to reset
cleanup pending. Delaying DTR
cleanup pending. Delaying DTR
cleanup pending. Delaying DTR
/1 Mcom: switching to character mode
destroy timer type 0
destroy timer type 1
destroy timer type 3
destroy timer type 4
destroy timer type 2
: allowing modem_process to continue hangup
restoring DTR
-UPDOWN: Interface Async98, changed state to down
/1 Mcom: in modem state 'Dialing/Answering'
/1 Mcom: in modem state 'Incoming ring'
/1 Mcom: in modem state 'Waiting for Carrier'
/1 Mcom: in modem state 'Disconnecting'
/1 Mcom: DISCONNECT, duration = 00:00:00, reason (0x2) No carrier
/1 Mcom: in modem state 'Idle'
CONFIG_I: Configured from console by aha on vty0 (192.168.1.58)
CONFIG_I: Configured from console by aha on vty0 (192.168.1.58)
CONFIG_I: Configured from console by aha on vty0 (192.168.1.58)
CONFIG_I: Configured from console by aha on vty0 (192.168.1.58)
/1 Mcom: in modem state 'Dialing/Answering'
/1 Mcom: in modem state 'Incoming ring'
/1 Mcom: in modem state 'Waiting for Carrier'
/1 Mcom: in modem state 'Connected'
/1 Mcom: CONNECT at 21600/12000(Tx/Rx), V34, LAPM, V42bis, Answer
DSR came up
Modem: IDLE->(unknown)
Autoselect started
create timer type 0, 120 seconds
Autoselect sample 7E
Autoselect sample 7EFF
Autoselect sample 7EFF7D
Autoselect sample 7EFF7D23
utoselect cmd: ppp negotiate
destroy timer type 0 (OK)
EXEC creation
create timer type 1, 600 seconds
destroy timer type 1 (OK)
destroy timer type 0
-UPDOWN: Interface Async98, changed state to up
/1 Mcom: PPP escape map: Tx map = FFFFFFFF, Rx map = 0
/1 Mcom: switching to PPP mode
/1 Mcom: PPP escape map: Tx map = 0, Rx map = 0
OTO-5-UPDOWN: Line protocol on Interface Async98, changed state t
/1 Mcom: in modem state 'Disconnecting'
/1 Mcom: DISCONNECT, duration = 00:00:24, reason (0xE) Remote Lin
OTO-5-UPDOWN: Line protocol on Interface Async98, changed state t
DSR was dropped
Modem: READY->(unknown)
/1 Mcom: in modem state 'Idle'
Async Int reset: Dropping DTR
/1 Mcom: PPP escape map: Tx map = FFFFFFFF, Rx map = 0
dropping DTR, hanging up
Modem: HANGUP->(unknown)
1 Mcom: in modem state 'Dialing/Answering'
/1 Mcom: in modem state 'Incoming ring'
/1 Mcom: in modem state 'Waiting for Carrier'
Modem State: Disconnec
: event-MODEM_DISCONNECTED New State-IDLE_STATE
End connection: Retransmits for MNP block (TX/RX) = 0/0
Duration = 0:00:00, Number of TX/RX char = 125379/2538419
Local Disc Reason = No carrier..
