Tech Support > Computers & Technology > Internet & Broadband > Numpty Security Question
Numpty Security Question
Posted by TheScullster on August 13th, 2007


Hi all

Daft question - all routers of a particular brand have the same setup
instructions and the same ip address.
Doesn't selling thousands of these things with the same address etc make
life easy for hackers?

Phil


Posted by Andy Burns on August 13th, 2007


On 13/08/2007 11:24, TheScullster wrote:

Assuming you refer to use of RFC1918 addresses for the router's LAN
side, then it can't be routed to across the internet.

If you refer to some malware being installed on your PC being able to
locally see the router then it would be able to find it via your default
gateway easily enough, setting a decent admin password is your security.


Posted by Lurch on August 13th, 2007


On Mon, 13 Aug 2007 11:24:06 +0100, "TheScullster"
<phil@dropthespam.com> mused:

--
Regards,
Stuart.

Posted by ato_zee@hotmail.com on August 13th, 2007



On 13-Aug-2007, "TheScullster" <phil@dropthespam.com> wrote:

No, there are 3 IP address ranges for private use, that should not
broadcast to the Internet.
10.0.0.0 to 10.255.255.255
192.168.0.0. to 192.168.255.255
172.16.0.0 to 172.31.255.255
Most routers use the 192.168 set, and themselves
192.168.1.0 or similar, though this can usually
be changed in the control panel.
Each user connected to the internet gets an IP
address from the ISP's pool, this can be
fixed static, or dynamic and subject to change.
Subnet masks are used in the mapping process,
between the private range, and the remainder, public
range of IP addresses.
Properly set up the routers firewall should make your
local network invisible to hackers, by not responding
to echo requests (pings) or port probes.
Go to
http://www.grc.com/default.htm
Scroll down to Shields Up and click on the red title.
Now test your own setup.
Make the necessary changes until tests show
Congratulations you are completely invisible,
it's as if if your PC doesn't exist.

Posted by Eeyore on August 13th, 2007




TheScullster wrote:

It's only the same address on the LAN side ( your computer). The WAN side
(internet) IP address is allocated by your ISP.

Graham


Posted by TheScullster on August 13th, 2007



"Eeyore" wrote


I don't remember entering an IP address into the modem!
Is this handled by the ISP and can I view this address?

Phil



Posted by TheScullster on August 13th, 2007



<ato_zee@hotmail.com> wrote

Thanks ato I'll give that a try!

Phil



Posted by Eeyore on August 13th, 2007




TheScullster wrote:

You can often view stuff like your modem/router's statistics by entering the
relevant IP address.
http://www.kitz.co.uk/adsl/frogstats.htm

This IP address is set by the modem/router manufacturer.

Graham


Posted by PlusNet Support Team on August 13th, 2007


TheScullster wrote:
http://whatismyip.com/

Rgds,

--
|Bob Pullen Broadband Solutions for
|Support Home & Business @
|PlusNet plc. www.plus.net
+------ PlusNet - The smarter way to Internet! -----

Posted by R. Mark Clayton on August 13th, 2007



"TheScullster" <phil@dropthespam.com> wrote in message
news:3bOdnU2BeM0KrV3bnZ2dnUVZ8seinZ2d@eclipse.net. uk...
No they are in a range - each one should be different, otherwise there is
chaos when they are connected up / together.



Posted by ato_zee@hotmail.com on August 13th, 2007



On 13-Aug-2007, "TheScullster" <phil@dropthespam.com> wrote:

Once your internet security is sorted, then you have
to sort your PC's security against, virus scanners, keyloggers
(which send keystrokes including banking passwords/
account numbers to some malicious site), trackers,
cookies, rogue dialers, etc. No one product is perfect,
I use several in rotation (SpySweeper, Spybot, AdAware,
Window Washer), and some (Grisoft AVG + OutPost
Firewall) permanently activated from bootup.
Anything sensitive is Blowfish encrypted with a
long passphrase (key). So if my PC is nicked
it'll take ages to decrypt everything, by which time
I'll have notified everyone to change online account
access.
Keep two backups, one remote, against fire, flood,
theft, lightning hit etc.
And you can then sleep peacefully.