Re: XP Infrastructure wired/wireless setup problems

"blodg" <blodg.2xon09@no-mx.wirelessforums.org> wrote in message
news:blodg.2xon09@no-mx.wirelessforums.org...
>
> Configuration (PCs are desktops running XP):
> Internet<---Internal Modem<---PC1<---Ethernet----Linksys
> Router<---wireless---PC2

What's the reasoning for PC1 being connected the the modem acting as the
gateway device for the LAN when it should be the router connected to the
modem with the router acting as the gateway device for the LAN with all the
pc's wire or wireless connecting to the gateway router.
>
> PC1 = 192.168.0.1
> Router = 192.168.0.99 (DHCP disabled)
> PC2 = 192.168.0.2
>
> Static IP addresses, Firewalls disabled, Not using 802.1x
> authentification,
> PC1 Sharing enabled and set to allow others to connect to internet thru
> PC1,
> PC2 set to connect thru broadband connection, PC2 file and print
> sharing
> enabled, using WEP
>
> I attempted DHCP but could not figure out how to get the PC to pick the
>
> domain of the router....and they kept assigning addresses outside the
> domain,
> so I switched to static.

What IP(s) were those? Do you mean IP(s) staring with 169.
>
> Situation:
> 1. PC2 can see PC1 in the workgroup and can access files on PC1
> 2. PC1 can see, but not ping, PC2 and cannot access files on PC2


> 3. PC2 cannot gain access to the internet
>
> I enabled logging on both pcs but the logs didn't provide any insight.
> I
> have searched the internet and tried every conceivable thing I can
> think
> of....man is this frustrating.
>

You're not using the protection of the router to protect your machines on
the LAN. The machines should be setting behind the router on the LAN with
DHCP on the router enabled so that it acts as a router providing the
protection to the LAN from the Internet. The NAT router provides the ICS.
You enable File and Print Sharing on the O/S(s) so that that they can share
resources like the printer on one machine, while they are behind the router.

ICS on the XP O/S with wireless is suspect to say the least about it and you
should avoid it.

Here is the proper use of a NAT router.

http://www.homenethelp.com/web/explain/about-NAT.asp

You should use the full protection the router has to offer for the wireless
to prevent the wireless side of the network from being hacked with someone
being all over the top of your machine hacking them as they join your
wireless network.
..
http://compnetworking.about.com/od/w...fisecurity.htm

You should use something like Wallwatcher to watch connections to and from
the router for dubious connections.

http://sonic.net/wallwatcher/