cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
374
Views
5
Helpful
3
Replies

Router resets modem configs

dehghan
Level 1
Level 1

HI

I have found that on a 3662 with 3 NM-16 modem banks that at random the router resets the line config ( I think ) to its default values and they are shown in the running config. This happens to three of the modem banks the other one does not have a problem.

This often makes users disconnect after the change has happend.

I have copied the running before and after the change :

before=

line 129 144

exec-timeout 0 0

no flush-at-activation

modem InOut

modem autoconfigure type microcom_mimic

terminal-type vt100

transport input all

autoselect during-login

autoselect ppp

flowcontrol hardware

line 161 176

exec-timeout 0 0

no flush-at-activation

modem InOut

modem autoconfigure type microcom_mimic

terminal-type vt100

transport input all

autoselect during-login

autoselect ppp

flowcontrol hardware

After=

line 129 144

exec-timeout 0 0

timeout login response 0

no flush-at-activation

modem InOut

modem autoconfigure type microcom_mimic

terminal-type vt100

data-character-bits 8

exec-character-bits 8

special-character-bits 8

length 0

width 0

no history

no editing

transport preferred none

transport input all

escape-character soft 0

escape-character 0

no ip tcp input-coalesce-threshold

autoselect during-login

autoselect ppp

hold-character 0

lat out-group all disabled

flowcontrol hardware

line 161 176

exec-timeout 0 0

no flush-at-activation

modem InOut

modem autoconfigure type microcom_mimic

terminal-type vt100

transport input all

autoselect during-login

autoselect ppp

flowcontrol hardware

I would be glad if someone could give me clue as to what could be happening.

Thanks alot.

3 Replies 3

makchitale
Level 6
Level 6

This appears similar to CSCdx16671 which is un-reproducable but reported in a few cases.

What IOS image do you have on the c3660?

Thanks, Mak.

Thanks for the reply

My IOS version is c3660-js-mz.122-11.T3.bin.

Please upgrade to the latest 12.3 IOS image (depending on the memory onboard).

Thanks, Mak.