Block MSN Messenger by router rules (Netgear DG834)

From: Mick (scull252-focus_at_yahoo.co.uk)
Date: 02/08/05 

Date: Tue, 8 Feb 2005 19:14:50 +0000 (UTC)

As per subject line.....Am trying to "control" usage at home. Common
sense approach with daughter has failed miserably, so I want to be
able to restrict it to reasonable periods.
I have 2 PC's connected to a Netgear DG834 router.
Searching on Google has turned little up. I understand MSN Messenger
uses port 1863 outbound, but if this is blocked, it will revert back
to port 80. I don't want to block that as that's normal http traffic.
I can't see an application blocking within Netgear, so am at a loss.
Looking for port 1863 outbound in my traffic logs, I found a "common"
IP address...in the range 207.46.xxx.xxx.
I did a traceback on this, the "ARIN who is" came back with an address
range of 207.46.0.0 to 207.46.255.255 as valid for MSN.
Went back into the admin of my Netgear router and tried to create a
rule around the IP address range 207.46.0.0 to 207.46.255.255, (TCP)
This didn't work as I got an error message returned saying it was an
"invalid finish IP" and then an "illegal IP range"
I tried various combinations but non seemed to work.
Only thing I could think of was...my access to the Netgear admin menu
is via IE. Could this possibly be preventing me from blocking this
range somehow??
I tried single IP addresses and still get the same error. I even tried
216.239.59.147 (Google.co.uk) which worked fine, so I know that what
I'm doing on the router will work on some addresses.

Help/guidance appreciated please

Mick

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