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Old 21st May 2016, 11:04   #1321
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Default re: On Wi-Fi & Routers

Please suggest a good Usb-Wifi Reciever with an antenna (assuming the reception with antenna would be better). I'm using a Belkin n 150 router.

The situation is - I've had to shift my Pc to another room temporarily which does not have the modem, router connection. And I'll be buying a laptop soon. So I want internet access from any where in the house for these. I'm currently using my phone - usb tethering.

Thanks!!
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Old 21st May 2016, 20:31   #1322
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Originally Posted by sinhead View Post
Please suggest a good Usb-Wifi Reciever with an antenna (assuming the reception with antenna would be better).
Depending on what you use your PC for and the signal strength at the new location, you might want to consider a PCI-X Wireless card instead. Since these hook directly to the Mobo they perform better than USB ones. Of course, USB beats them on convenience and ease of install.

Amazon has a good selection at various pricepoints.

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Originally Posted by Chetan_Rao View Post
I've changed both the admin console username/password and SSID/password combinations. Left most other settings at default, including SSID broadcast ON. Am I secure enough or should I be doing something else?
One thing many people miss is to leave WEP as the default. Make sure you are on WPA2-PSK with AES (not TKIP - it is insecure) with a strong password.

I also don't trust WPS - press-a-button-and-I-am-on-your-wifi thingy. Disable that if you are not using it.

Last edited by Gannu_1 : 21st May 2016 at 21:34. Reason: B2B posts merged.
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Old 21st May 2016, 20:43   #1323
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I also don't trust WPS - press-a-button-and-I-am-on-your-wifi thingy. Disable that if you are not using it.
You have to press two buttons.

Perhaps this is the downside of having a 60-plus character wifi password: I am all too keen not to have to enter it manually! But if someone else is ready and waiting at the moment I press the button on my router, I guess I'm scuppered
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Old 21st May 2016, 21:49   #1324
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Originally Posted by Thad E Ginathom View Post
if someone else is ready and waiting at the moment I press the button on my router, I guess I'm scuppered
... or if someone else is able to press the button while you are not looking?

I used to have it enabled, but then the technician who came to install a broadband connection at home felt he could help himself to my Internet connectivity without asking me. After I caught him at that figured it is prudent to disable it permanently. I'd like to know who all using the connectivity for which I pay a bomb. :-)
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Old 21st May 2016, 22:04   #1325
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... or if someone else is able to press the button while you are not looking?
Ultimately, physical security is all.
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Old 21st May 2016, 23:16   #1326
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Can you please elaborate on this.
Every device has a physical address known as a MAC address. You can configure your router (if it has support) to only allow those devices to connect whose MAC ids you have entered into the system.
This adds a second layer of security and hence even if someone has cracked your password, they won't be able to connect to your wireless network.
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Old 22nd May 2016, 03:13   #1327
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Originally Posted by rdst_1 View Post
This adds a second layer of security and hence even if someone has cracked your password, they won't be able to connect to your wireless network.
If they have cracked your password, they can log into your router and see, change or add to allowed MAC addresses.
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Old 22nd May 2016, 08:40   #1328
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If they have cracked your password, they can log into your router and see, change or add to allowed MAC addresses.
The router login password and the SSID password are different. How can they login to your router if they can't even connect to your wireless network.

Yes, a proficient hacker should be able to use packet sniffing and MAC address spoofing to get on to the network. However this method still protects you from some normal guy who has come across your password by fluke or because of one having a weak password.

Last edited by rdst_1 : 22nd May 2016 at 08:58.
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Old 22nd May 2016, 13:35   #1329
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Default re: On Wi-Fi & Routers

I don't know if it's a universal feature or of much use at all, but I found an option on my router's admin console that allows me to set a particular device as authorized admin, meaning another device can't be used to access the console even if someone has my admin username/password.

@binand: I do have the correct WPA2 option selected plus a strong password.

Last edited by Chetan_Rao : 22nd May 2016 at 13:37.
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Old 22nd May 2016, 15:52   #1330
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Originally Posted by rdst_1 View Post
The router login password and the SSID password are different. How can they login to your router if they can't even connect to your wireless network.

Yes, a proficient hacker should be able to use packet sniffing and MAC address spoofing to get on to the network. However this method still protects you from some normal guy who has come across your password by fluke or because of one having a weak password.
Yes, like chaining bags on the train: it protects against the casual thief just picking them up, but not against the guy with tools in his pocket.

Quote:
Originally Posted by Chetan_Rao View Post
I don't know if it's a universal feature or of much use at all, but I found an option on my router's admin console that allows me to set a particular device as authorized admin, meaning another device can't be used to access the console even if someone has my admin username/password.
How do you specify that? IP address? MAC address? Must take a look at mine: I don't remember if that is there or not.. Thanks for the hint.

Another thing that would be good is administration by wired access only. Again: I don't remember if I can do that on mine, but I think not.

EDIT: only for remote management, and no.

Last edited by Thad E Ginathom : 22nd May 2016 at 16:04.
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Old 22nd May 2016, 16:13   #1331
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Originally Posted by Thad E Ginathom View Post
........
How do you specify that? IP address? MAC address? Must take a look at mine: I don't remember if that is there or not.. Thanks for the hint.
MAC Address. My TP-LINK router lets me specify upto FOUR PCs that can access the admin console, plus options to enable/disable individually as required. Pretty nifty, even if not foolproof.

Listed under Security > Local Management on my router.

Quote:
Another thing that would be good is administration by wired access only.......
No such option on mine, though it allows remote mgmt. through a specific IP address. I honestly don't need that right now, local more than meets my needs.

Last edited by Chetan_Rao : 22nd May 2016 at 16:14.
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Old 22nd May 2016, 19:51   #1332
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Originally Posted by rdst_1 View Post
You can configure your router (if it has support) to only allow those devices to connect whose MAC ids you have entered into the system.
The MAC is so easily changeable; that spoofing it is now an entry-level hacker task. :-)
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Old 23rd May 2016, 10:29   #1333
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Default re: On Wi-Fi & Routers

Quote:
Originally Posted by rdst_1 View Post
Every device has a physical address known as a MAC address. You can configure your router (if it has support) to only allow those devices to connect whose MAC ids you have entered into the system.
This adds a second layer of security and hence even if someone has cracked your password, they won't be able to connect to your wireless network.
Quote:
Originally Posted by Thad E Ginathom View Post
If they have cracked your password, they can log into your router and see, change or add to allowed MAC addresses.
Quote:
Originally Posted by rdst_1 View Post
The router login password and the SSID password are different. How can they login to your router if they can't even connect to your wireless network.

Yes, a proficient hacker should be able to use packet sniffing and MAC address spoofing to get on to the network. However this method still protects you from some normal guy who has come across your password by fluke or because of one having a weak password.
Thanks guys! This is good information.
Will lookup over the weekend how I can put this to use.

So every time a new device needs to connect to the WiFi Network, I will need to add its MAC address? That will make it cumbersome to give access to guests who may come home and need WiFi access.
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Old 23rd May 2016, 12:45   #1334
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There is a android app which can crack wifi passwords, i am not sure how it does that. One of my neighbors told me about it that few kids downstairs were using his wifi. He told that they were not able to connect to my wifi and he wanted me to check, as airtel was not being helpful in the matter. I checked the app and it was using some WPS exploit. I disabled WPS in his router and then the app was not able to connect.

I have kept WPS and DHCP off in my router, i will suggest everyone to switch off WPS in their routers.

This app just connects to the wifi but you can not see the wifi password. There are few apps which can even display the password if the phone is rooted.

Last edited by Rahulkool : 23rd May 2016 at 12:47.
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Old 23rd May 2016, 13:48   #1335
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Originally Posted by tibby View Post
.........That will make it cumbersome to give access to guests who may come home and need WiFi access.
Some routers have an option to setup a public 'Guest' network for such scenarios. Mine does.
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