Tuesday, June 08, 2004

Upgrade the FIRMWARE on your Linksys BEFSR11 or BEFSR41 Switch/router/firewall TODAY

The following Linksys Product Description tells you WHAT this device GIVES you on your home network. :)
If you have a High Speed Internet Connection I would HIGHLY recommend that you ADD this EXTRA layer of protection so that you have a HARDWARE firewall between you and the Internet. I can NOT stress this enough.


Built-In 10/100 4-Port Switch!
Supports up to 253 Users!



The Linksys EtherFast® Cable/DSL Router with 4-Port Switch is the perfect option to connect multiple PCs to a high-speed Broadband Internet connection or to an Ethernet back-bone. Allowing up to 253 users, the built-in NAT technology acts as a firewall protecting your internal network.

Configurable as a DHCP server for your existing network, the EtherFast® Cable/DSL Router with 4-Port Switch acts as the only externally recognized Internet device on your local area network (LAN). The router can also be configured to block internal users' access to the Internet. A typical router may have to rely on an external hub or switch to share its Internet connection, but the Linksys EtherFast® Cable/DSL with 4-Port Switch Router channels this connection through the blazing, full duplex speed of its built-in EtherFast® 10/100 4-Port Switch.

This cutting-edge combination of router and switch technology eliminates the need to buy an additional hub or switch and serves your network as a completely dedicated, full duplex backbone. Now your entire network will enjoy blazing Broadband Internet connections supported by its robust switched backbone. With the dual-function speed and power of the EtherFast® Cable/DSL Router with 4-Port Switch, your network will take off at speeds faster than you ever imagined possible.

Note:
This unit requires an external Cable or DSL modem with an Ethernet RJ-45 interface.

BEFSR Tech Helper

Additional Information on Firewalls and Internet Security

Additional Support Page Help

Mac Firmware updating software from MacTechnologies
Please note: MacTechnologies Consulting is not affiliated with Linksys. Please do not contact them for support issues with your router.

Macintosh Installation Instructions

MAC Address Registration help PDF

Download the LogViewer Application to look at your Access Logs in more detail. You can download the latest version of the LogViewer here.

This router is compatible with All window Operating systems. Windows 95, 98, 2000, XP, NT, and Me.


Linksys routers can't be sniffed at any more

Firmware upgrade for all


By Fernando Cassia: Tuesday 08 June 2004, 07:00


PERHAPS HURRIED by our recent report about the BOOTP based exploit and sniffing vulnerability in popular Linksys routers like the BEFSR11 and BEFSR41, the firm has released firmware version 1.45.11, dated June 4, that specifically mentions closing the BOOTP and memory leak hole which allowed remote sniffing of TCP/IP traffic passing through the devices.

Here is a quick list of fixes, straight from the release notes:


Fixed CGI string attacks issue
Fixed UPnP on Windows XP SP2 issue
Fixed One way audio issue
Fixed NAT-T issue for some VPN connection
Fixed DHCP server revision, fill the siaddr to the server address
Fixed DHCP (BOOTP) vulnerability issue
Added Filter IDENT(port 113) to appear stealth when scanned
Added DHCP option 55 support
Fixed buffer leakage bug
Modified TCP Support RFC 3360 standard
Modified PPPoE/L2TP/PPTP fragmentation supports fragmenting 1 packet into more than 3.
Modified MTU/MRU function for better handling [of what?]
Owners of old revisions of the BEFSR41, BEFSR11 and BEFSRU31 routers, those made before the Cisco acquisition, will be happy to learn that this firmware was released for "Version 1" and "Version 2" hardware.



If you go to this link you can find the FIRMWARE upgrade for both of these routers at
Firmware upgrades for the BEFSR11 & BEFSR41 Routers ONLY....

WARNING: Do NOT do this if you are NOT POSITIVE about what VERSION of HARDWARE your Router is. The hardware version can be found on the bottom of the router next to the model number. If the version number (V2) is not there then it is assumed that it is V1. :)

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