I have recently put together a new PC with WinXP Home SP2 (I was previously using Win98SE).
On both the new and the old machine, I use a Linksys BEFSR11 router with the same configurations on both machines. I also use Zone Alarm free V5.5.062.004
With my old Win98 machine, I never had any incoming alerts. The router seemed to have blocked everything. Effectively the ZA was checking outgoing traffic.
With the WinXP machine, however, I am getting quite a few alerts - mostly to do with the following alert:
Rating : medium Protocol : ICMP (type:3/subtype:2) Source : 192.168.1.1 Destination : 192.168.1.100 Direction : incoming
The description states that a packet was sent but the ICMP was unreachable and (presumably the return) was blocked.
I never got this with Win98. Is this something to do with WinXP, or is there another problem. I know from ZA that this is not really a problem as the firewall blocked it anyway, I would just like to know why I am getting it and if I can stop it. It talks about something on local networks that can cause it, but I am the only PC on the router and I have no network.
Thanks for any advice you can provide