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Blocking IP addresses

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Blocking IP addresses - 25.Dec.2004 1:31:00 AM   
AnotherGeek

 

Posts: 3
Joined: 25.Dec.2004
From: South Bend IN
Status: offline
I'm using ISA 2004, and I would like to be able to block those who port scan my network from being able to access anything on my network at all, including the webserver.
Can I write a rule to include IP addresses of those who are scanning me?
Post #: 1
RE: Blocking IP addresses - 2.May2005 5:15:00 PM   
habanagold

 

Posts: 2
Joined: 2.May2005
Status: offline
Did you ever get an answer? I would like to know if ISA Server (specifically 2000) can block an external IP address that starts a port scan.

(in reply to AnotherGeek)
Post #: 2
RE: Blocking IP addresses - 22.Aug.2006 12:56:33 AM   
tderenthal

 

Posts: 7
Joined: 5.Nov.2002
Status: offline
I too would like to know how this is done. Any answers? Doses anybody ever get any answers from posts on this site?

(in reply to habanagold)
Post #: 3
RE: Blocking IP addresses - 29.Aug.2006 12:43:37 AM   
releaser

 

Posts: 78
Joined: 23.Jan.2004
From: Northern California
Status: offline
As far as the ISA server automatically setting up a rule that blocks an external IP from all access as soon as the foreign IP starts a port scan, I don't know.

If you want to completely block out a specific IP, then yes, you can do that. I've done it a few times.
Go to  your Packet Filters section under Access Policy and create a new Custom rule than blocks all traffic (IP Protocol: Any;Direction:Inbound) on the external ISA servers NIC (Default IP Address for each external interface...) for the Remote Computer (By IP Address) you which to apply the filter to.

I've never actually tested to see how effective this is.

HTH,
Jim

(in reply to habanagold)
Post #: 4
RE: Blocking IP addresses - 13.Jul.2010 8:22:39 AM   
bennyc@hafaguam.com

 

Posts: 15
Joined: 19.Dec.2005
Status: offline
where / how can you do this in ISA 2006?

(in reply to releaser)
Post #: 5

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