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тАО12-02-2002 10:29 AM
тАО12-02-2002 10:29 AM
However, now that I have MRTG running to pull data every 5 minutes, I am no longer able to access my switches via telnet or the web. The last time I worked with them before turning on MRTG I was able to access them via Telnet and the web.
Now when I try via Telnet, it says it connects, then gives "Escape character is '^]'." then terminates with "Connection closed by foreign host."
Halting the cron job for a few minutes did not change anything.
Is there something I'm missing here?
Thanks.
Solved! Go to Solution.
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тАО12-02-2002 12:48 PM
тАО12-02-2002 12:48 PM
Re: Console access while using MRTG
In any event you need to go back in with the console to each switch and make sure you have assigned passwords. Page 7-7
ftp://ftp.hp.com/pub/networking/software/59692354.pdf
Then do:
show ip authorized-managers
If you see anything then you will need to add your own IP address to the list as per p7-35
ftp://ftp.hp.com/pub/networking/software/59692354.pdf
Ron
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тАО12-02-2002 01:14 PM
тАО12-02-2002 01:14 PM
Re: Console access while using MRTG
However, my problem is just getting into the console right now. I have not had console access since I started running MRTG.
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тАО12-02-2002 05:04 PM
тАО12-02-2002 05:04 PM
Re: Console access while using MRTG
"If you press RESET you will reboot the switch. No settings will be lost.
If you press CLEAR you will clear all passwords of the switch. Nothing else.
To lose switch settings you need to press both together in a sequence described in Management and Configuration Guide.
So, just press Clear and try again :-)
Arimo"
That's not how I read the manual but I've never had one to play with. Just Cisco stuff which this seems to be derived from.
I wonder if when you turned SNMP on for MRTG if you didn't let a hacker in who changed your passwords. It appears that the default of public may have write access to the system at least they talk about setting it to restricted if you have security concerns. With the right set of MIBS and a program which can read and set SNMP variables you can do all sorts of harm. (You might also be able to fix your problem. There is a Perl module which lets you do SNMP sets: http://search.cpan.org/author/WMARQ/SNMP-Util-1.8/Util.pm )
Ron
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тАО12-05-2002 01:59 PM
тАО12-05-2002 01:59 PM
SolutionYou dont have console access (via serial port)?
You should always get console access
via the serial 9600,N,8,1
Once you get access that way, go and
change/set the password immediately.
If u dont have the password, then
press the CLEAR button infront of switch.
This clears the password only, not the config.
Also check IP Authorized Managers
as it may have something filled (IP address)
which is not what u have on your PC...
Fillin your IP address of your PC and also
the one for the MRTG machine...
hope that helps
Romeo
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тАО12-05-2002 02:11 PM
тАО12-05-2002 02:11 PM
Re: Console access while using MRTG
Under "Switch Management Access Configuration...", for whatever reason, I set only 1 "IP Authorized Manager". The IP I entered was for the machine running MRTG, and not the machine I typically use to connect to the switches.
I went in via the machine running MRTG and fixed the problem.
Thanks to all those with suggestions.
->Jeff