This post will be short because it does not need a lot
of explanation. This is in a really specific case.
If you have the password of the router and if you are
logged to it you will not be able to delete all the traces.
The router logs the connection and the disconnection
of telnet sessions. If you want to delete the
connection from the logs you just have to delete
them. But if you want to delete the disconnection log
you can't.
The only way to do that is to make it crash. Just use
the telnet program which is inside the router. Try to
make a connection from the IP of the router to the IP
of the router. It will crash it, as a consequence, you
will NOT be logged ! In the log you only see things like
that :
01/24/01 01:01:15 --BOOT: Warm start v4.6 ----
01/24/01 01:01:10 * EXCEPTION: A6: 12F6890, A7:
12F67DC
01/24/01 01:01:10 * EXCEPTION: A4: 0, A5: 124B474
01/24/01 01:01:10 * EXCEPTION: A2: 125F9AC, A3: 0
01/24/01 01:01:10 * EXCEPTION: A0: 125F9D8, A1: 0
01/24/01 01:01:10 * EXCEPTION: D6: 0, D7:
C1FB0028
01/24/01 01:01:10 * EXCEPTION: D4: 0, D5: 0
01/24/01 01:01:10 * EXCEPTION: D2: 0, D3: 0
01/24/01 01:01:10 * EXCEPTION: D0: 0, D1: 6
01/24/01 01:01:10 * EXCEPTION: BERR SF
SP+$10: 10845AE, SP+$14: E0045
01/24/01 01:01:10 * EXCEPTION: BERR SF
SP+$08: 83A, SP+$0C: FFFFF9AC
01/24/01 01:01:10 * EXCEPTION: PC: 10845AE, SR:
2004, F/V: C008
