router 2620: DTR signal is not restoring when interface down

[ipareja]

Hi all,

I have a problem with an asyncronuous interface in a 2620 router (WIC2 A/S card). I explain. When interface receives a call-in, in any cases the connection is established and in the othter cases the establishing occurs at the second attempt.

I have observed that if the interface is reset by idle-timeout, the line "restoring DTR" appears in log monitor, but this line not appears when the connection is down for other reasons. When this occurs, if I try a new connection, the connection is not establised, but the line is reset
("
DRS was dropped
...
restoring DTR
&quot
If I try a new connection now, the call is stabllised.

I think that the problem is related to the control signal DSR of the interface, but I am sure that the dial-up modem connected to the interface works fine.

Another way of reset the interface is with the command "clear line 1".

I have try too to control manually the control signals, but I have not get anything.

Any suggestion.

Thank



A part of the router configuration is:

!
interface Serial0/0
physical-layer async
ip unnumbered FastEthernet0/0
no ip directed-broadcast
encapsulation ppp
dialer in-band
dialer idle-timeout 180
dialer fast-idle 60
dialer enable-timeout 10
dialer wait-for-carrier-time 120
dialer hold-queue 16
dialer-group 1
async mode interactive
no cdp enable
ppp authentication ms-chap callin
ppp chap password 7 08315E411D1A0C011B07

(....)

line 1
autoselect ppp
script dialer dial
script reset reset
modem InOut
transport input all
stopbits 1
speed 115200
flowcontrol hardware

 

[jeter]

just a wild thought however have you tried
(modem autoconfigure discovery)?

Jeter@LasVegas.com
J.Fisher CCNA