07-04-2018 02:47 AM - edited 03-08-2019 03:33 PM
Hi,
I have a problem with my Cisco router. I can't get access to it through con/aux port. Router responds only to telnet request "Password required but none set"and then it closes connection. When I try to get access with COM it shows nothing. Router does get IP from WAN and it responds to pings. It doesn't have services such as SSH and HTTP. It has only telnet port open.
Thanks in advance.
07-04-2018 04:16 AM
hi,
can you check if the right COM port is used?
also check if terminal program settings are correct: 9600-8-N-1-N
you're getting the error "Password required but none set" since there's no VTY line passwords were configured.
do you have a copy of the show run? post a sanitized output here.
07-04-2018 05:08 AM
Hi,
COM port is correct, we have only one of this.
Terminal program settings are correct, i've used putty and hyperterminal.
I can't connect to router, so still i can't configure anything and give commands.
07-04-2018 05:45 AM
hi,
looks like you need to perform a password recovery.
make sure to properly configure the router for remote access, i.e. local user, line VTY and enable PW are configured.
07-04-2018 05:55 AM
07-04-2018 06:00 AM
can you try with other laptop and another terminal emulation software (i.e. tera term)?
are you using a serial to USB adapter? make sure its driver is updated.
07-04-2018 06:06 AM
We've tried with other laptop and with usb adapter too, also different OS (win7,win10,XP,ubuntu).
We've tried tera term too.
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