Insufficient responses for TCP sequencing (3), OS detection may be less accurate
Interesting ports on  (216.249.241.68):
(The 1537 ports scanned but not shown below are in state: filtered)
Port       State       Service
21/tcp     open        ftp                     
80/tcp     open        http                    
443/tcp    open        https                   
554/tcp    closed      rtsp                    
5631/tcp   open        pcanywheredata          

No OS matches for host (If you know what OS is running on it, see http://www.insecure.org/cgi-bin/nmap-submit.cgi).
TCP/IP fingerprint:
SInfo(V=2.54BETA22%P=i386-unknown-freebsd4.0%D=6/1%Time=3B176871%O=21%C=554)
TSeq(Class=RI%gcd=1%SI=1062D%IPID=I%TS=0)
TSeq(Class=RI%gcd=1%SI=3945%IPID=I%TS=0)
T1(Resp=Y%DF=Y%W=402E%ACK=S++%Flags=AS%Ops=MNWNNT)
T1(Resp=Y%DF=Y%W=402E%ACK=S++%Flags=AS%Ops=MNWNNT)
T2(Resp=Y%DF=N%W=800%ACK=S%Flags=AR%Ops=)
T2(Resp=Y%DF=N%W=800%ACK=S%Flags=AR%Ops=)
T3(Resp=Y%DF=Y%W=402E%ACK=S++%Flags=AS%Ops=MNWNNT)
T3(Resp=Y%DF=Y%W=402E%ACK=S++%Flags=AS%Ops=MNWNNT)
T4(Resp=N)
T4(Resp=Y%DF=N%W=800%ACK=S%Flags=AR%Ops=)
T5(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
T5(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
T6(Resp=Y%DF=N%W=800%ACK=S%Flags=AR%Ops=)
T6(Resp=Y%DF=N%W=800%ACK=S%Flags=AR%Ops=)
T7(Resp=Y%DF=N%W=800%ACK=S++%Flags=AR%Ops=)
T7(Resp=Y%DF=N%W=800%ACK=S++%Flags=AR%Ops=)
PU(Resp=N)
PU(Resp=N)



# Nmap run completed at Fri Jun  1 06:03:30 2001 -- 1 IP address (1 host up) scanned in 1893 seconds