00:01
Hello students, let's analyze the given that ipv4 datagram header step by step.
00:07
So we have the ipv4 datagram header with a 0 of 40, 45 and all the term, all the values next to that.
00:17
So the first question is, the first is the packet corrupted? no, the packet is not corrupted.
00:26
The packet is not corrupted.
00:31
So as we can say this by the headers checksum field that is the byte, it is the bytes of 10 and 11, 10 and 11 is used for the, is used to check for the corruption.
00:46
So if the checksum is calculated correctly, so the packet is not corrupted.
00:52
The second question is, are there any option, the header field, the header length field indicates the length of the header in the 32 bits.
01:03
If the value is greater than the 5, it means that there is a other option present.
01:08
In this case, the value is 5 indicating that there is no option, there is no option.
01:17
So if the value is greater than the, as the value is greater than the 0, greater than the 0, then there means there exist another option.
01:31
So here the value is 4, so there is no other option.
01:36
The next c part is the packet fragmented? the fragmented offset field is used to indicate if the packet is fragmented.
01:46
So if the value of this field is not 0, the packet is fragmented.
01:50
In this case, the value is 0, as the value is 0, so therefore, therefore the packet is, the packet is not, is not fragmented, is not fragmented.
02:13
Fine? the next is, what is the size of the data? the total length field indicates the total length of ipv4 datagram that indicate, that includes both the header and the data.
02:25
So in this case, the value is 84...