Question about SMC Barricade g SMCWBR14T-G Wireless Router (SMCWBR14TG)

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The subnet mask


my problem is that I can`t get in to some internet sites. I wonder if it is the subnet mask that causes this problem? the numbers it writes is is there any way to cange theese numbers?

By the way, is there a way to adjust the settings for where the router considers something to be a synflood. (I am using torrents and I believe the router mistakenly considers heigtened networkaktivity for a synflood attack)

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  • mellemelethe Mar 30, 2008

    well I found out that upgrading the firmware solved most of my problems. after upgrading I could access the internett pages I couldn`t before, and there were some new settings I could cange (preferd DNS settings and the router subnet mask) only problem that remains is that it mistakes some of my internett traffic as synflood. I`ve found where I can cange som settings that relates, but I don`t know what they mean exactly. (increasing / decreasing ) Eevery morning someone have managed to shut down my service so I need to reboot the router. for eksample I`ve been getting a lot of "smurf":s and IP-spoofing and different kinds of packet flooding.


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To change you subnet mask, go to control panel. look for network settings. select your internet. Right-click and properties. Look for subnet mask options (Try TCP/IP) If your subnet mask settings arent on automatic, put it to auto, if they are on auto, manually type in (That is what is supposed to be)

Posted on Mar 23, 2008

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How do you get your IP Address, Subnet Mask, and your Gateway codes

Connect your computer wired or wirelessly to your router.
in windows based comp
open command prompt
type -- ipcofig
you will get your answer

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Belkin Wireless router

Is the laptop connected to the router wirelessly? because that can be the porblem if that laptop is not connected wirelessly it wont be working, so make sure that the laptop is connected to your wireless network...

Hope that helps..............

Sep 03, 2008 | Arris Wireless G Broadband Router (wr850g)


How to Calculate an IP v4 Subnet

An IP address is a specific address assigned to a computer across a network, allowing computers to communicate with one another. When IP Version 4 debuted, there were far less computers on the web. IP v4 only contains 4,294,967,296 possible addresses, including subnet number and broadcast addresses. Now, there are many more devices on the web and because of this, subnetting (as well as NAT) was developed as a way of maximizing usable addresses.

The Parts of an IP Address:

IP addresses contain 4 octets, 8 bits each. For example, in binary is


The Mask:

A Subnet Mask tells a computer what part of the address declares a subnet so it knows when the destination address is on the same network or needs to be routed to a different one. For example,

The subnet mask in binary is


when applied to or


The first 24 bits are the subnet. So, all addresses in are part of the same subnet. When a computer with address wants to communicate with a computer with address The information does not need to be routed because the computers are on the same network. However when a computer with address wants to communicate with or, the data must be sent to the default gateway to be routed.

The area that is not covered by the mask (in this case, the last octet) are used by the network. The lowest possible number of .00000000 or is the subnet number and the highest possible number of .11111111 or is the broadcast address. These particular addresses cannot be issued to devices on a network. This leaves 254 addresses on that can be assigned to devices on that network. The default gateway (the router) can be assigned any address in that space. However, it is typically assigned the first address ( in this case)

One more example:

Ip address of with subnet mask of or,


00001010.01100101.010010 00.00000000 or is the lowest address (aka subnet number) and

00001010.01100101.010010 11.11111111 or is the highest number (aka broadcast address)

Any number in between is assignable to a device on the network.

The Easy Way (without binary):

Always look or the odd octet (the one that isn't 255 or 0) in the subnet mask.

in this case is 252. Subtract that number from 255 and you have 3 (or as I like to call it the magic number)

find the same octet from the IP address:

in this case is 75. Find the multiples of the magic number that this octet is between. In this case, 75 is a multiple of 3, so the numbers we are looking for would be 75 and the previous multiple 73.

So far we have, and

fill the X's for the low number with 0 and
fill the X's for the high number with 255 and you have, (subnet number) and (broadcast address)

All addresses in between are usable. As confusing as it all may sound, all takes is practice. "Practice makes perfect." Try making up your own IP address and Subnet mask and calculate the range to find the subnet number and broadcast address. In time you will have it down to a science.

on Nov 05, 2010 | Computers & Internet

1 Answer

What is router

Basic steps to configure your router:
  1. Set Up IP Address and Sub-net Mask for their router.
  2. Now open the router Web Page by in the browser URL.
  3. Login with your User Name and Password.
  4. For Manuall Configuration and Set-up router according to your ISP.
Router have different configuration according to Model. for more router support and any router related technical support D-Link Router Support .

May 26, 2014 | D-Link Computers & Internet

1 Answer

How do i establish a subnet with a A address

The subnet is determined by the subnet mask. Class A addresses are contained in the following range: - The most common use of a class A address is

In class A networking you may use a subnet mask from all the way to

The subnet would work as the following example:

Network Address: 10.x.x.x
Subnet mask:

The first number in the above example would determine our subnet. So if you have 2 devices and you would want to put them in a different subnets you would want the first octet (octet is each number seperated by periods) to be a different number.

Network 1: 10.x.x.x
Network 2: 11.x.x.x

Unless these devices use a router to communicate they would not "talk" properly. Thus giving you 2 different subnets.

Oct 24, 2013 | Computers & Internet

1 Answer

I need the subnet mask number

go to your computer open command pad type ipconfig/all hit enter and look for your subnet will be the same for your xbox.

Oct 27, 2012 | Belkin Wireless Surf Router (F7D2301)

1 Answer

I hooked my linksys E1000 Router to Samsung 3d TV (Wired), but the TV doesnot detect the internet speed, on my laptop (Wireless) is 144Mbps.

you may need to sign in manually,those tvs sometimes dont pick up dns addresses of routers automaticallty

plug in your cable into your laptop

go to start/accessories/command prompt

type in ipconfig

scroll up till you see ethernet

take down your ip4 address,itll look something like this (change the last number to something in the range of 1-250) your subnet mask ad default gateway

plug back in your line to your tv,go to manual enter settings

enter in your ip (with the number changed at the end) your subnet mask and your default gateway number for your dns/gateway if required

if you need more help try customer service on the samsung american site,theyre really good at answering any quick email queries :)

Mar 07, 2011 | Cisco Linksys E1000 WirelessN Broadband...

1 Answer

Seemlessly joining two networks

try changing the subnet on N1 to or

Apr 24, 2010 | Computers & Internet

1 Answer

I cannot get my Wii to connect to my 2wire router. We have not been able to connect ever since we switched to ATT. Please help.

I had a similiar problem; check your PC settings and find out your IP address, subnet mask, default gateway and DNS settings and write them down. (from "run", type "cmd", then in the window type "ipconfig /all")
if your IP address is (for example) mask and gateway is, go to your Wii settings and change the internet settings to NO DHCP, give the Wii an address of with the same subnet mask, default gateway and DNS server setting as your PC. Remember the FIRST 3 numbers of the IP address must be the same and the last one DIFFERENT.

Mar 03, 2010 | 2wire (2701HG-B) Wireless Router

2 Answers

Adding additional computer problem

Yes, the xp machine connects to the net. DHCP is not enabled. The ipconfig/all command brings up the correct static ip address, subnet mask, and default gateway. But it does also say under the ip configuration that ip routing is not enabled. I did have the 2000 machine connected when I first set up the router yesterday, but I booted up my laptop to try to set up a wireless connection, and then I had to reinstall the entire router set-up.

Jan 12, 2008 | Linksys Wireless-G WRT54G Router

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