Play Counter-Strike Using Hamachi

There are some settings which you have to apply in order to play counter-strike using hamachi...
And without applying those settings, you will often get the error:

"LAN servers are restricted to local clients (class C)."

Guide:

Example when 1 friend want to join my server

I have created LAN server, my IP is 5.1.57.145 => my friend who want to join my LAN server has IP:
5.7.20.110

- his IP has different IP range like my IP, so i need to create "alias" for him
My file aliases.txt contains a pair of IP addresses:

5.7.20.110 5.1.20.110

Example when 3 friends want to join my server

I have created LAN server, my IP is 5.1.57.145 => my friends who want to join my LAN server have IPs:
5.7.20.110
5.11.74.63
5.4.28.33

- their IPs have different IP range like my IP, so i need to create file "aliases" for them
My file aliases.txt contains a pairs of IP addresses:

5.7.20.110 5.1.20.110
5.11.74.63 5.1.74.63
5.4.28.33 5.1.28.33

Summary:

1. Find out IP addresses of your friend who want to join your server
2. Create aliases for them (if their IPs are different IP range like yours IP)
3. Restart Hamachi
4. Create LAN server
5. Play the game :-)

Create LAN Game

1. Join some hamachi network and start the game

2. Choose New Game -> choose the map -> set up your server -> Start

Join LAN Game

1. Join some hamachi network and start the game

2. Choose Find Servers -> LAN -> Connect

If you have error "LAN servers are restricted to local clients (class C)." => your friend who created LAN server did mistake in aliases.txt or forgot to restart Hamachi

I hope you will be able to play counter-strike using hamachi now...