Using ipfw with Apple's Reachability class

Question

Do packet filter rules specified with ipfw affect the working of Apple's Reachability class ?

For eg. If I enforce these rules:

sudo ipfw add 120 deny tcp from me to www.google.co.in
sudo ipfw add 130 deny tcp from www.google.co.in to me

and run this code:

Reachability* hostReach = [Reachability reachabilityWithHostName: @"www.google.co.in"];
NetworkStatus netStatus = [hostReach currentReachabilityStatus];

the netStatus returned is ReachableViaWiFi while I was expecting NotReachable. Is the Reachability bypassing the firewall ?