Help with blocking Hamachi

[[GSV]Lemming]

My google fu has failed me, I cannot find a way to block users on my system from using Hamachi connections. Is this possible?

I am using a LINKSYS WRT54GS router if that helps..

Makes a change trying to block rather than making it work based on my google searches for sure!!

 

[[GSV]Lemming]

Thanks for that, I will be blocking all those ports tonight. If I hear cries of frustration from upstairs I will know my work is done!!