How is the UDP checksum verified at the receiver when you send FFFFh?
0
I'm talking about the special case when the one's complement of the sum results in 0 and we send its 1's complement FFFFh.What does the receiver add in order to make up for this change?
networking udp
asked Nov 22 '18 at 22:47
Andrei MariAndrei Mari
11
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0
I'm talking about the special case when the one's complement of the sum results in 0 and we send its 1's complement FFFFh.What does the receiver add in order to make up for this change?
networking udp
asked Nov 22 '18 at 22:47
Andrei MariAndrei Mari
11
I'm not sure I understand the question, or maybe you don't understand that the receiver performs the exact same calculation as the sender, so the results would be the same. The receiver would come to the same conclusion that0x0000would need to be changed to0xffff.
– Ron Maupin
Nov 23 '18 at 4:51
Thanks! Wasn’t aware that the receiver works like that!
– Andrei Mari
Nov 23 '18 at 8:36
add a comment |
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0
0
I'm talking about the special case when the one's complement of the sum results in 0 and we send its 1's complement FFFFh.What does the receiver add in order to make up for this change?
networking udp
asked Nov 22 '18 at 22:47
Andrei MariAndrei Mari
11
I'm talking about the special case when the one's complement of the sum results in 0 and we send its 1's complement FFFFh.What does the receiver add in order to make up for this change?
networking udp
networking udp
asked Nov 22 '18 at 22:47
Andrei MariAndrei Mari
11
asked Nov 22 '18 at 22:47
Andrei MariAndrei Mari
11
asked Nov 22 '18 at 22:47
Andrei MariAndrei Mari
11
asked Nov 22 '18 at 22:47
Andrei MariAndrei Mari
11
asked Nov 22 '18 at 22:47
Andrei MariAndrei Mari
11
11
I'm not sure I understand the question, or maybe you don't understand that the receiver performs the exact same calculation as the sender, so the results would be the same. The receiver would come to the same conclusion that0x0000would need to be changed to0xffff.
– Ron Maupin
Nov 23 '18 at 4:51
Thanks! Wasn’t aware that the receiver works like that!
– Andrei Mari
Nov 23 '18 at 8:36
add a comment |
I'm not sure I understand the question, or maybe you don't understand that the receiver performs the exact same calculation as the sender, so the results would be the same. The receiver would come to the same conclusion that0x0000would need to be changed to0xffff.
– Ron Maupin
Nov 23 '18 at 4:51
Thanks! Wasn’t aware that the receiver works like that!
– Andrei Mari
Nov 23 '18 at 8:36
I'm not sure I understand the question, or maybe you don't understand that the receiver performs the exact same calculation as the sender, so the results would be the same. The receiver would come to the same conclusion that
0x0000 would need to be changed to 0xffff.– Ron Maupin
Nov 23 '18 at 4:51
I'm not sure I understand the question, or maybe you don't understand that the receiver performs the exact same calculation as the sender, so the results would be the same. The receiver would come to the same conclusion that
0x0000 would need to be changed to 0xffff.– Ron Maupin
Nov 23 '18 at 4:51
Thanks! Wasn’t aware that the receiver works like that!
– Andrei Mari
Nov 23 '18 at 8:36
Thanks! Wasn’t aware that the receiver works like that!
– Andrei Mari
Nov 23 '18 at 8:36
add a comment |
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I'm not sure I understand the question, or maybe you don't understand that the receiver performs the exact same calculation as the sender, so the results would be the same. The receiver would come to the same conclusion that
0x0000would need to be changed to0xffff.– Ron Maupin
Nov 23 '18 at 4:51
Thanks! Wasn’t aware that the receiver works like that!
– Andrei Mari
Nov 23 '18 at 8:36