FW: QIBM_QTG_DEVINIT - Telnet Device Initialization Exit Program

[Ian Scotson <IanS@xxxxxxxxxxxx>]

(Not sure the original of this got thru..)


Couple of questions.

1. The sample exit progs ive seen for Telnet seem to use
IP addressing as their main method of determining
who to allow/disallow in. Any other considerations
in particular? ( its not like FTP where the obvious ones
also include Directorys and commands..)

2. What determines its Telnet? I understand that some
clever people can use non std ports to attach to machines
via telnet/FTP. eg: telnet to port 110 (pop3) on an NT box.
Is that relavent here? What is it that actually kicks off
the exit program - the port or the telnet server?


3. Ran some IP tools against our IP devices to test general security,
eg: Cisco rtr, AS/400.
Came up with a comment about "TCP Sequence Prediction:"
Cisco came up with truly Random - tough nut.
AS/400 came up with xxxxx - a joke!

What is this, what does it mean, and can we do anything about it?



Ian.



( just trying to tie down my machine a bit more..)