freebsd is router or system linux?

[remy]

anyone can tell me freebsd is router or system linux?

[wsware]

it is an Operating System like Linux

[remy]

thanks a lot for u response

but i have still 2 question

is the other linux system work also as FREEBSD, in my home, i installed the redhat 7.3?

if not, can u give me some clue how to installer the nat server for make
work two pc in the same game?

thank u again