I like CPF very much and I think it may be the best firewall out there, but it is slowing down my internet connection quite a bit. After uninstalling it, and going back to Kerio v2.1.5, I realised that for my system I need specific ICMP protocols to have a good speedy internet connection. They would be as follows:
Echo Request #8, Out, any address, any port
Echo Reply #0, In, any address, any port
Domain Name Request #37, Out, any address, any port
Domain Name Reply #38, In, any address, any port
Then all other ICMP is blocked.
I did notice that a couple of these rules are already in place, but I forgot which ones.
How do I configure Comodo to allow these protocols in the networking rules?
I’m not a stranger to firewalls, but setting up ICMP rules in Comodo seems impossible for me to do on my own. Everything I tried didn’t work.
If it matters, I am using an ethernet cable connection, Nvidia nForce 6100 networking controller, and Windows XP SP2 MCE. also, I don’t use home networking, hardware firewall, or a router.
Thanks in advance.
Here is an update to the above post.
I reinstalled CPF v184.108.40.206 and
Allow ICMP Out, from IP [any], to IP [any], where the ICMP message is ECHO Request.
is already enabled.
Allow ICMP In, from IP [any], to IP [any], where the ICMP message is ECHO Reply.
is now manually enabled.
Now I only need the ‘Domain Name Request’, and ‘Domain Name Reply’ ICMP Rules,
which are not in the predefined ICMP rules, so I need to create rules manually.
All I really need is the ‘Type’ and ‘code’ for each of the above.
I searched the forum here, and didn’t find anything that would help me, and searching
on the internet gave me a list of some ICMP types, but not the codes.