Linksys WRT54G security

[griffen]

I have two PC's that connect to a Linksys WRT54G router.
One of the PC's was online and I think it got hacked.
The hacker got in through the wireless connection in the router.
I removed all PC's from connecting to the router and what I found is that the internet light flashes for traffic. Is this just standard internet traffic or is someone using the router? Is there anyway I can tell any IP addresses using the router?
Is DHCP more secure than static?
The safety measures I took was to enable the "Wireless MAC filter", which won't get me very far. Tomorrow I'm going to look at using WPA but I just wondered if anyone had any suggestions?

Thanks.

 

[RealBlackStuff]

Static is not necessarily more secure, but that way you can limit the range of PCs that can connect to only those that the router allows. The MAC-filter does the same, and is an extra security that you should definitely use.
You MUST activate the firewall in your router (if it has one) and set it to "Stealth" mode if possible. On top of that you need to install a software firewall on each PC, as well as AV-software.
Browse to www.grc.com and see how secure your PC is.

 

[Eric Legge]

You can use that AP/router with Linux, which is much safer than using Windows.

Go to this page and look for references to WRT54G for a link that takes you to a page that shows you how to configure that router for Linux. -

http://www.legge40.freeserve.co.uk/Networking.htm

I would use SuSE 9.0 or Mandrake 9.0.

Eric,
http://www.legge40.freeserve.co.uk/BuyerBeware.htm