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Posted by Eric on April 1, 2007, 11:15 am
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> Thanks.
>
> So in theory it is true, that any packets on any ports are passed
> through the cable modem to my pc, right? Any unpatched OS can be easily
> attacked this way, right?
> Michael
Any packets that aren't blocked by your ISP's cable modem
configuration script will be passed along. Commonly they block
incoming ports 80 (webserver), 110 (mailserver), sometimes 21 (FTP
server), 137/139 (windows networking), 201-208 (appletalk), and any of
the common virus/worm ports. However, for the most part, ports are
left open on cable networks.
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Posted by Todd H. on March 23, 2007, 10:42 am
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> Hi,
>
> we have a Toshiba Cable modem for Internet Access (in Germany). Do these
> cable modems have something like a simple firewall that drops packets
> that come from outside? I am not aware of any method to manage that
> modem (no browser or ssh access).
> Without any kind of that functionality or at least a router at the cable
> modem port, I guess the (single) computer behind the cable modem is very
> easy to attack, right? In that case, I should buy a firewall, right?
Yup, yup and yup.
The less you have to rely on your OS to protect you from network based
attack, the deeper your defenses. It's $50 well spent for a hardware
device that includes a stateful packet inspection firewall in it.
Best Regards,
--
Todd H.
http://www.toddh.net/
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Posted by Michael Kamp on March 23, 2007, 10:53 am
If you were Registered and logged in, you could reply and use other advanced thread options > The less you have to rely on your OS to protect you from network
> based attack, the deeper your defenses.
That's what I mean.
> It's $50 well spent for a hardware
> device that includes a stateful packet inspection firewall in it.
Any model recommendation? I don't have a clue...
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Posted by Todd H. on March 23, 2007, 12:11 pm
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> > The less you have to rely on your OS to protect you from network
> > based attack, the deeper your defenses.
>
> That's what I mean.
>
> > It's $50 well spent for a hardware
> > device that includes a stateful packet inspection firewall in it.
>
> Any model recommendation? I don't have a clue...
Hard to go too wrong with the Linksys BEFSR41 for wired, or a Buffalo
WHR-G54S to add wireless capability. The Buffalo will run third
party firmware quite nicely too for more functionality if desired.
Best Regards,
--
Todd H.
http://www.toddh.net/
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Posted by Michael Kamp on March 26, 2007, 10:54 am
If you were Registered and logged in, you could reply and use other advanced thread options > Hard to go too wrong with the Linksys BEFSR41 for wired, or a
> Buffalo WHR-G54S
So, this is only a router, I guess it has a firewall included?
Is there e.g. a logging mechanism that sends syslog to a e.g. 3CDaemon
Syslog - Server?
> It's $50 well spent for a hardware
> device that includes a stateful packet inspection firewall in it.
So, do the Linksys/Buffalo have that?
Thanks again!
Michael
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