Author: Roy Eassa
Date: 12:38:01 05/16/02
Go up one level in this thread
On May 16, 2002 at 15:24:43, Roy Eassa wrote: >On May 16, 2002 at 15:10:57, Jon Dart wrote: > >>On May 16, 2002 at 14:39:00, Roy Eassa wrote: >> >> >>> >>>Jon, may I ask a question about this topic? >>> >>>I have a Linksys cable router (BEFSR41) that connects my computers to the cable >>>modem. I've heard that it's an "OK" firewall as is, but would be a very good >>>firewall if you configure it a certain way. What would I need to do? >> >>This is getting pretty far OT .. routers can generally be configured to block >>access to particular ports. Some routers can do more sophisticated firewall >>functions, such as "stateful inspection": this allows you, for example, to let >>in only Internet traffic that comes in response to a request you have initiated. >>How you do this is vendor-dependent. My DSL router has a web-based admin GUI >>that you can use to configure it. But if your ISP installed the router, they may >>not want you reconfiguring it .. it is more possible support headaches for them >>if you have problems. >> >>--Jon > > > >The Linksys router is my own, not the cable company's. They don't even like >that I have it. It is, like yours, configurable via WWW. I don't recall seeing >"stateful inspection" but I know you can block ports (etc.). I just don't know >which ones to block. > >When I bought the thing (March of 2000) I thought I was forever safe because it >separates the cable company from my computers (which are essentially on a >separate LAN). Now I'm not so sure, but I guess I'm too thick-headed in this >area to understand the nature of my vulnerability given the separate LAN. > >Any help is appreciated -- including more general explanation and/or links to >web pages that explain. Thanks! Some choices in the router's Filter menu: SPI: Enable/Disable Block WAN Request: Enable/Disable Multicast Pass Through: Enable/Disable IPSec Pass Through: Enable/Disable PPTP Pass Through: Enable/Disable Remote Management: Enable/Disable Remote Upgrade: Enable/Disable MTU: Enable Disable Size:
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