Hi all. It will be great if some one will help me to solve my home task. So,
the deal : i have .pcap file, i convert it to csv using tcpdump (tcpdump -tt
-n -r x.pcap > x.csv)

CSV file looks like that :

12890084,761659 IP 10.10.20.20.47808 > 10.10.20.255.47808: UDP, length 12
12890084,761659 IP 10.10.20.20.47808 > 10.10.20.255.47808: TCP, length 12
12890084,761659 IP 10.10.20.20.47808 > 10.10.20.255.47808: HTML, length 12
...

100000 rows.

Now, i need to open csv in R, and solve 5 problems, but i need to work only
with "UDP" packets (not TCP,HTMP...). For example i need to count how many
"UDP" packets are there, max and min time in UDP and so on. I see only two
answers.. i need to scan (but how?) for "UDP" or i need to separate this
csv, cut only needed rows, and work with them. Please help.

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