Re: stand alone firewalls
- From: "Philip Herlihy" <foof8501@xxxxxxxxxxxxxxxxxxx>
- Date: Mon, 23 Jan 2006 10:18:27 +0000 (UTC)
Bizarrely, I remembered that I'd forgotten to comment on the loopback
adapter as I was falling asleep last night. (Must get out more...)
A network adapter is, ordinarily, a bit of physical kit which provides an
electrical and logical interface between an external cable (or signal) and
the "system" (motherboard, if you like). As I understand it, the "loopback
adapter" is a logical entity which allows a system to route traffic to
itself - it's useful to ping yourself sometimes to verify that TCP/IP is
installed and working, for example. As there is no external interface, it's
ok to trust it, and most firewalls make that reasonable assumption.
--
####################
## PH, London
####################
"Tom C.." <tom@xxxxxxxxxx> wrote in message
news:o0UAf.7180$C%3.7134@xxxxxxxxxxxxxxxxxxxxxxxxx
> Thanks very much for your time and help. It seems that the ip address
> range you gave me worked fine.
> I have a loopback adpator in my trusted zone. Do i need that, i dint add
> that to the zone...thanks tom
>
> "Philip Herlihy" <foof8501@xxxxxxxxxxxxxxxxxxx> wrote in message
> news:dr065m$ddj$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> Almost. 192.168.0.1 to 192.168.0.254 (not 256).
>>
>> The '0' in each range this the address of the "Subnet", rather than any
>> machine on it, and '255' is reserved for multicast communications.
>>
>> The alternative way of specifying your local, private network is to
>> define it in ZoneAlarm as a "subnet", with Address: 192.168.0.0 and
>> "Subnet Mask" of 255.255.255.0.
>>
>> --
>> ####################
>> ## PH, London
>> ####################
>> "Tom C.." <tom@xxxxxxxxxx> wrote in message
>> news:fUBAf.9461$SC1.9402@xxxxxxxxxxxxxxxxxxxxxxxxx
>>> Typing cmd first was what i needed to do to get the ip address. I use
>>> Zone Alarm and it has a place i can enter a range of ip addresses that
>>> it will allow through. If I put in a range of numbers, and i am
>>> guessing, 192.168.0.1 through 192.168.0.256, it will allow my computers
>>> on my network to see each other?
>>> DLink saaid i really dont need a software firewall if i am using my
>>> firewall. I disabled my firewall and ran a leak test. It didnt take
>>> anytime beofre the test broke through.
>>> Am i correct in assuming this range will work for what i need it to
>>> do?...thanks for your help...tom
>>>
>>>
>>> "Robbie" <ngrobbieuk@xxxxxxxxxxx> wrote in message
>>> news:1137869600.363396.78530@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>>>>
>>>> Tom C.. wrote:
>>>>> I tried to run ipconfig, a window popped up briefly and then closed.
>>>>> I
>>>>> tried running ipconfig on my other computers and the same thing
>>>>> happened. It
>>>>> doesn't give me time to even look for an ip address....thanks for the
>>>>> help...tom
>>>>>
>>>>>
>>>>> "Philip Herlihy" <foof8501@xxxxxxxxxxxxxxxxxxx> wrote in message
>>>>> news:dqtskc$hg2$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>>>>> > Hard to advise without a lot more detail!
>>>>> >
>>>>> > In general - set your computers to pick up an IP address, etc,
>>>>> > automatically, and then they will all end up on the same "subnet".
>>>>> > Disable PC-based firewalls for now.
>>>>> >
>>>>> > Reboot the PCs and then run "ipconfig" in a command prompt to see
>>>>> > what IP
>>>>> > addresses they have picked up. Try pinging one from the other.
>>>>> > eg: ping a.b.c.d - replacing letters with numbers you got from
>>>>> > ipconfig.
>>>>> >
>>>>> > Once you can ping, you can create file shares on one, and map
>>>>> > network
>>>>> > drives on the other. You do both from within windows explorer.
>>>>> >
>>>>> > If you always run your machines behind a hardware firewall, then you
>>>>> > probably don't need a software firewall, except that they can alert
>>>>> > you to
>>>>> > the fact that something is running on your machine and making
>>>>> > outgoing
>>>>> > connections. I do use software firewalls.
>>>>> >
>>>>> > Hope that helps!
>>>>> >
>>>>> > --
>>>>> > ####################
>>>>> > ## PH, London
>>>>> > ####################
>>>>> > "Tom C.." <tom@xxxxxxxxxx> wrote in message
>>>>> > news:QcrAf.9085$SC1.3317@xxxxxxxxxxxxxxxxxxxxxxxxx
>>>>> >>I have a D-Link DI 524 wireless router. Is it necessary for me to
>>>>> >>have a
>>>>> >>Norton or Zone Alarm firewall also? It seems when i have the stand
>>>>> >>alone
>>>>> >>firewall, my computers on the network can't see each other. I know
>>>>> >>there
>>>>> >>are some ranges of ip addesses that i can put into the stand alones,
>>>>> >>but
>>>>> >>so far i havnt had much luck with that. I admit i don't know all i
>>>>> >>need to
>>>>> >>know about wireless netowrking...thanks for the help...tom
>>>>> >>
>>>>> >
>>>>> >
>>>>
>>>> I just sent an answer to this. I just realised what your problem could
>>>> be. I think your problem is you are typing ipconfig into the run box.
>>>> You have to type cmd then ipconfig into the box that opens. Try that
>>>> and see if it works.
>>>>
>>>> Robbie
>>>>
>>>
>>>
>>
>>
>
>
.
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