I have created a icmp ping function but it doesn't always work due to the firewall of the computer I am trying to ping. I heard you can get around this using a tcp ping. How can i construct a tcp ping packet. I did a little research and it uses the ack, syn flags in the packet, but don't get how to tell if the computer responded correctly since it is random sequences.
Talguy
0
Junior Poster in Training
Recommended Answers
Jump to Postas you probably know, Ping is on the Network Layer, and by definition doesn't use a port. there is no such thing as "Tcp Ping".
problem is, many servers no longer adhere to the RFC requirement to answer a network ping, citing security risks.
so, some people have …
All 4 Replies
jephthah
1,888
Posting Maven
Talguy
0
Junior Poster in Training
jephthah
1,888
Posting Maven
Talguy
0
Junior Poster in Training
Be a part of the DaniWeb community
We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.