getting ip address

[Rahul Garg]

Hi everybody,

The problem goes like this :

from html i am calling a perl script.
in that perl script what i want is :

if (the request is comping from  ip adress==w.x.y.z)
{
#####code
}
else
{
#####code
}
what should i do to  know from which ip address the request is coming in perl...
any suggestions......refrences..sample perl script for this  will be of immense help.

Thanks 
Rahul