Question about 2wire 2700HG-B Router (2700HGB)

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Receiving packets on my home network, my notebook will not received packets, will send not received, i inserted my wep key, it also says i'm connected, and signal strength is ecellent

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Check your antivirus program, run it, check if you can get internet, if is Windows Vista you problably needs to reload the system, before try to connect other computer, make sure your router is ok. you can turn it off and back on.

Posted on Jun 13, 2008

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2 Answers

What is a wep key and how do i find it


A WEP key is a security code used on some Wi-Fi networks. WEP keys allow a group of devices on a local network (such as a home network) to exchange encoded messages with each other while hiding the contents of the messages from easy viewing by outsiders. WEP keys are chosen by a network administrator. WEP keys are set on Wi-Fi Routers and other wireless network devices. Matching WEP keys must be set on each device for them to communicate with each other.

Dec 27, 2011 | Routers

1 Answer

Packets sent but not received on wireless network. Kindly solve the problem and suggest me in this regard.


The problem is the wireless card in your computer cannot connect to your wireless router.
Theencryption key secures your data from unauthorized access. The router's password is a Passphrase or the WEP or WPA orWPA2 encryption key. The Passphrase generates the WEP or WPA or WPA2 encryptionkey and this is in the router's wireless settings. To connect to your wireless router, configure the router'swireless settings ie SSID, plus the WPAor WPA2 encryption key and then configure wireless cards in the laptops and orcomputers with these router's wireless settings. Then the laptops and desktopcomputers can communicate with your wireless router.

Jun 21, 2011 | Routers

2 Answers

What is MTU? wut does it stands for and what is it for?


Hello - MTU stands for Maximum Transmission Unit which is a measure of the size of a data "chunk" that can be sent over a network at a time. For example, if you are connected to the Internet using Ethernet the standard MTU is 1500 bytes while being connected over a WiFi connection would mean your using an MTU of 2272 bytes while an old fashioned modem would send 576 bytes at a time.


The MTU usually refers to the TCP/IP protocol which was developed for and is the networking standard for the Internet. MTU has standards for different networking devices, Ethernet, Modems, etc. but they can be modified for the purpose for special uses to achieve greater efficiency.


To read more about MTU there is a more complete description of it at the Wikipedia entry HERE.


Happy Networking


Mikeywaf

Mar 19, 2011 | Edimax BR-6104K Router (br6104k)

1 Answer

What is the wep key


A WEP key is a security code used on some Wi-Fi networks. WEP keys allow a group of devices on a local network (such as a home network) to exchange encoded messages with each other while hiding the contents of the messages from easy viewing by outsiders. A WEP key is a sequence of hexadecimal digits. These digits include the numbers 0-9 and the letters A-F. Some examples of WEP keys are:
  • 1A648C9FE2
  • 99D767BAC38EA23B0C0176D15
WEP keys are chosen by a network administrator. WEP keys are set on Wi-Fi routers, adapters and other wireless network devices. Matching WEP keys must be set on each device for them to communicate with each other. The length of a WEP key depends on the type of WEP security (called "encryption") utilized:
  • 40- / 64-bit WEP: 10 digit key
  • 104- / 128-bit WEP: 26 digit key
  • 256-bit WEP: 58 digit key

Feb 15, 2011 | Linksys E3000 Wireless Router

2 Answers

What is wpa or wep


It is the security code that is setup on the router to prevent an unsecure network

Dec 08, 2010 | Belkin F5D7234-4 Router

1 Answer

Can a wifi wep key be cracked? if yes HOW ?


Yes WEP can be cracked.

You need to install a sniffer tool on you Laptop and then you need to capture the packets.
Once you cpature the packets filter the packets using the access Point IP

Then by looking at the transactions between the wireless AP and the laptop you can get the WEP key.

Its not that simple, need a lot of expertise.

Dec 06, 2010 | Routers

1 Answer

I need to know my wep key or ssid codes, whats the difference? i need it to set up for my ps3 online


WEP (wired equivalent privacy)

The privacy protocol specified in IEEE 802.11 to provide wireless LAN users protection against casual eavesdropping. WEP refers to the intent to provide a privacy service to wireless LAN users similar to that provided by the physical security inherent in a wired LAN.


When WEP is active in a wireless LAN, each 802.11 packet is encrypted separately with an RC4 cipher stream generated by a 64-bit RC4 key. This key is composed of a 24-bit initialization vector (IV) and a 40-bit WEP key. The encrypted packet is generated with a bitwise exclusive OR (XOR) of the original packet and the RC4 stream. The IV is chosen by the sender and can be changed periodically so every packet won't be encrypted with the same cipher stream. The IV is sent in the clear with each packet. An additional 4-byte Integrity Check Value (ICV) is computed on the original packet and appended to the end. The ICV (be careful not to confuse this with the IV) is also encrypted with the RC4 cipher stream.

WEP has been widely criticized for a number of weaknesses:

Key management and key size
Key management is not specified in the WEP standard; without interoperable key management, keys will tend to be long-lived and of poor quality. Most wireless networks that use WEP have one single WEP key shared between every node on the network. Access points and client stations must be programmed with the same WEP key. Since synchronizing the change of keys is tedious and difficult, keys are seldom changed. Also, the 802.11 standard does not specify any WEP key sizes other than 40 bits. 

The IV is too small

WEP's IV size of 24 bits provides for 16,777,216 different RC4 cipher streams for a given WEP key, for any key size. Remember that the RC4 cipher stream is XOR-ed with the original packet to give the encrypted packet that is transmitted, and the IV is sent in the clear with each packet. The problem is IV reuse. If the RC4 cipher stream for a given IV is found, an attacker can decrypt subsequent packets that were encrypted with the same IV or can forge packets.

Weakness: The ICV algorithm is not appropriate
The WEP ICV is based on CRC-32, an algorithm for detecting noise and common errors in transmission. CRC-32 is an excellent checksum for detecting errors, but an awful choice for a cryptographic hash. Better-designed encryption systems use algorithms such as MD5 or SHA-1 for their ICVs. 

Authentication messages can be easily forged

SSID (Service Set IDentifier)
The SSID (Service Set IDentifier) is a token which identifies an 802.11 (Wi-Fi) network. 


The SSID is a secret key which is set by the network administrator.

You must know the SSID to join an 802.11 network. However, the SSID can be discovered by network sniffing. By default, the SSID is part of the packet header for every packet sent over the WLAN.
SSID Security Issues

The fact that the SSID is a secret key instead of a public key creates a key management problem for the network administrator. Every user of the network must configure the SSID into their system. If the network administrator seeks to lock a user out of the network, the administrator must change the SSID of the network, which will require reconfiguration of the SSID on every network node. Some 802.11 NICs allow you to configure several SSIDs at one time.
Default SSID's

Most 802.11 access point vendors allow the use of an SSID of "any" to enable an 802.11 NIC to connect to any 802.11 network. This is known to work with wireless equipment from Buffalo Technologies, Cisco, D-Link, Enterasys, Intermec, Lucent, and Proxim. Other default SSID's include "tsunami", "101", "RoamAbout Default Network Name", "Default SSID", and "Compaq".
Disabling SSID Broadcasting

Many Wireless Access Point (WAP) vendors have added a configuration option which lets you disable broadcasting of the SSID. This adds little security because it is only able to prevent the SSID from being broadcast with Probe Request and Beacon frames. The SSID must be broadcast with Probe Response frames. In addition, the wireless access cards will broadcast the SSID in their Association and Reassociation frames. Because of this, the SSID cannot be considered a valid security tool.
An SSID by any other name

The SSID is also referred to as the ESSID (Extended Service Set IDentifier).


Airsnort, Aircrack 2.1, Cain & Abel are some of the wireless packet sniffing tools which can decode the authorization key.

Dec 23, 2009 | D-Link ADSL2/2+ Modem/Wireless Router...

2 Answers

What is the WEP key


Wired Equivalent Privacy (WEP)
WEP is an older network security method that's still available to support older devices, but it's no longer recommended. When you enable WEP, you set up a network security key. This key encrypts the information that one computer sends to another computer across your network. However, WEP security is relatively easy to crack. f4008eb.jpg

Nov 16, 2009 | NetGear WGR614 Wireless Router

2 Answers

Wireless laptop finds signal, connects to network but no internet


just a thought but may be you can try to remove the WEP/WPA and select the connection mode based on MAC id, hope it was some help

Jul 23, 2009 | D-Link DIR-625 (790069292637) Wireless...

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