[Security] Nearly had heart attack ! :-O

[Roberto Rojas]

well I too have a cable modem, and conect via DHCP,
and I have the for 2 reasons:
1) the cable-modem only has 1 exit, and I have 2 computers
2) <paranoid> I don't trust that much ANY ISP in my country </paranoid>
(to be w/out a firewall, I mean)
so what I did was to sit the router between my (2) PC(s) and the cable
modem,
then my 2 computers connect directly to the router,
and the router uses the IP the ISP geves me, and it gives the 2 PCs a net
submask [or something like that was called]
that way if anyoune wnats to get inside my PC, it bumps in the router
instead =P
(I guess it works like that, I'm too a newbie in networks and networking)
AFAIK cable-modems have no built-in firewall (at least in my country, dunno
'bout yours)
but I'd apreciate if someone corrects me on that


On 3/14/07, Vincent Trouilliez <vincent.trouilliez at modulonet.fr> wrote:
>
> "Roberto Rojas" <simply.snake at gmail.com> wrote:
> > btw,
> > To Vincent: have you considered using a router between your computer and
> the
> > internet? some (like mine) have a biult-in firewall that is
> configurable,
> > with blacklist and whitelist for ports and/or protocols, and are not too
> > expensive
>
> Huuu, well, no. Anything netword related is mostly too complicated for
> my small brain. All I know is that there is some magic thing called
> "DHCP", that allow internet access to work all by magic without even
> having to type a password or anything, nor configure or install any
> software. I think I heard, that my cable modem can do this magic trick
> because it has a built-in router, which talks to the ISP and
> authenticates me and gives me an IP address. It probably mostly
> technical non-sense, but it's about as far as my understanding goes I
> am afraid ! ;-/ Network stuff is so complex to me, it always makes me
> run away. I have deep respect for those who master the subject.
> So if I understand well, I do have a router, the one that's built
> inside my cable modem. So maybe it has more features than meets the
> eye, and maybe it has a firewall ? If it does, at least it's not
> documented so I don't know how to proceed to access the router.
> I guess maybe using a special IP address that it would recognize, and
> then it would serve me web pages as a user interface ? But I don't know
> what IP to use to initiate a communication with the router.
>
> --
> Vince
>
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