Port No. 7

[han+l@f√]

Port no. 7 which is used for ping the other machine... Why this port information is not showed while port scanning

[proxx]

Port no. 7 which is used for ping the other machine... Why this port information is not showed while port scanning

You ping over port 7?
You also know that ICMP does not deal with ports?

[han+l@f√]

You not getting my question... My ques is... When we check open ports of other machine using nmap commands ..it shows all open port info but port 7 not why., though it is open..

Thank u

[Kulverstukas]

You not getting my question... My ques is... When we check open ports of other machine using nmap commands ..it shows all open port info but port 7 not why., though it is open..

Thank u

How do you know it's open if it doesn't show up?

[proxx]

You not getting my question... My ques is... When we check open ports of other machine using nmap commands ..it shows all open port info but port 7 not why., though it is open..

Thank u

Well I would suggest reading up on the IP prot because ping does not use ports.
Also which command did you use to scan ? that is kinda important, then again rtfm.

[han+l@f√]

Thanxx proxx....

Can u send me the link please.... Where i can clear my doubt

[proxx]

http://www.amazon.com/TCP-Illustrated-Vol-Addison-Wesley-Professional/dp/0201633469

[RedBullAddicted]

lol Proxx is absolutely right. You just need to have a look at the osi model. ICMP operates on layer 3 and TCP/UDP on layer 4.

http://en.wikipedia.org/wiki/Internet_Control_Message_Protocol
http://en.wikipedia.org/wiki/OSI_model

And another one for you:
http://en.wikipedia.org/wiki/Echo_Protocol

TCP/UDP 7 is the echo protocol and has nothing to do with the icmp message type 8 (icmp echo request).