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Hello everyone,

I want to ask how is it possible to get a ACK_RTT time for a packet that is send from some server, and received by my computer.

I have this line in wireshark:

 No        Time     ACK_RTT      protocol      SRC IP ADDR          DST IP ADDR
564     0.055450    0.055450000     TCP    www.dropbox-dns.com    192.168.0.105 

I can't understand how is it possible for us to know when the packet is send from the server, for us to be able to calculate RTT.

Thank you in advance!

Hello everyone,

I want to ask how is it possible to get a ACK_RTT time for a packet that is send from some server, my computer, and received by my computer.some server.

I have this line lines in wireshark:

 No     Time      ACK_RTT   protocol     SRC IP ADDR         DST IP ADDR
564 543 0.000000    0.000000   TCP  0.055450    0.055450000     TCP 192.168.0.105    www.dropbox-dns.com    SYN
550 0.060792    0.060792   TCP     www.dropbox-dns.com  192.168.0.105      SYN,ACK
552 0.000207    0.000207   TCP      192.168.0.105   www.dropbox-dns.com     ACK 

I can't understand how is it possible to have ACK_RTT Time for us the Line 3 (No. 552), its just ACK to know when the packet is send from the server, for us to be able to calculate RTT.server.

Thank you in advance!

Hello everyone,

I want to ask how is it possible to get a ACK_RTT time for a packet that is send from my computer, and received by some server.

I have this lines in wireshark:

No    Time       ACK_RTT  protocol    SRC IP ADDR        DST IP ADDR
543 0.000000    0.000000    TCP      192.168.0.105    www.dropbox-dns.com    SYN
550 0.060792    0.060792   TCP     www.dropbox-dns.com  192.168.0.105      SYN,ACK
552 0.000207    0.000207   TCP      192.168.0.105   www.dropbox-dns.com     ACK 

I can't understand how is it possible to have ACK_RTT Time for the Line 3 (No. 552), its just ACK to the server.

Thank you in advance!