RE: RE: Denying TCP connections based on IP

I found the answer to all of the questions myself by right clicking the
FILTER SET line and selecting properties. I have successfully activated
the IP filters for our system. Thanks to everyone for your input.

Diana Hicks
Town of Jupiter

_____________________________________________
From: Diana Hicks
Sent: Wednesday, July 11, 2007 8:49 AM
To: Midrange-L submission (MIDRANGE-L@xxxxxxxxxxxx)
Subject: RE: Denying TCP connections based on IP

Adding the address line seems easy enough. Richard, thanks for your
help.

Does anyone know what the parameter JRN does on the FILTER SET line?
For example, if JRN = YES, does it journal all the permited and denied
addresses or just the denied addresses? Also, what is the name of the
journal?

Diana Hicks
Town of Jupiter

-----Original Message----
date: Tue, 10 Jul 2007 16:44:27 -0400
from: "Richard Casey" <casey_r@xxxxxxxxxxxxxxxx>
subject: RE: Denying TCP connections based on IP

Diana,

You can't include something like 162.56.*.* in your FILTER line, but
you can achieve the same result by using the ADDRESS keyword.

ADDRESS net16256 IP = 162.56.0.0 THROUGH 162.56.255.255
FILTER SET TestFilter ACTION = PERMIT DIRECTION =- INBOUND SRCADDR =
net16256 DSTADDR = * PROTOCOL = * DSTPORT = * SRCPORT = *


The "net16256" in the FILTER line points to the IP address range
specified in the ADDRESS line.

Also, I second Larry's recommendation of the rescue command
(RMVTCPTBL) and a non TCP/IP terminal to be able to run it on. Packet
filters are quite effective at locking everybody out! Been there, done
that!

Hope this helps!
Richard Casey

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