I have a laptop that uses a wireless connection, with the access point sitting behind a router. After installing CHX 3.0, I imported the Workstation sample ruleset, but I could not get an IP address using the wireless connection. Checking the logs, I could see that the router was trying to send UDP packets from source port 67 to destination port 68 on my laptop. I noticed that the rule called "DHCP Offer Traffic" allowed UDP packets from source port 67/68, but the Packets' Destination was set to "Masked IP: IP: 255.255.255.255, Mask: 255.255.255.255". I changed the Packets' Destination to "Any", and then I was able to get an IP address. But I still couldn't connect to the internet, so after checking the logs again, I saw that the router was trying to send ARP packets to my laptop. I created a new filter to allow ARP, and I was able to connect to the internet. I do have some questions: 1) The logs say that the router sends a UDP packet to my laptop's port 520 twice a minute. But the Destination IP address says 192.168.1.255, and my laptop's IP address is 192.168.1.35. Does the address 192.168.1.255 have a special meaning? How is my laptop getting packets that aren't addressed to it? 2) The logs also say that my other Windows machine behind the router is sending UDP packets to my laptop's ports 137 and 138. Is this normal? Why is that machine trying to send packets to my laptop? And the Destination IP address for those is also 192.168.1.255. 3) Earlier I mentioned that I had to change the "DHCP Offer Traffic" rule to have a Packets' Destination of "Any" instead of the "Masked IP". Is it OK to keep it as "Any", or should I make it more restrictive? I would think that I can keep it as "Any", because how can I get packets addressed to someone else, but then why am I getting those packets addressed to 192.168.1.255? 4) I see that all of the filters from the Workstation sample ruleset are set to Lowest priority, except for the "DHCP Offer Traffic" rule, which is set to Highest priority. But since it is a Force Allow rule, it will still work the same if I set it to Lowest priority, right? I'm unsure about why these priority levels are needed. 5) Has anyone done anything with payload filters? I tried reading the docs and it seems pretty confusing. Thanks for your help!