"0x6aa6" - 1 õppematerjal

Side labor 5 aruanne: Juurdepääs arvutivõrku aruanne

ICMP, DNS D. Milline paketi eluaja (Time To Live, TTL) väärtus on kõikidel ICMP päringu pakettidel ning vastuse pakettidel? 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13; vastusel 53 E. Mida TTL näitab? Time to live näitab aega, kui kaua kulub brauseril uue DNSi laadimiseks, mis peaks olema andmete eluiga sisuliselt. Lisada Wiresharkist salvestatud pakettide faili sisu. No. Time Source Destination Protocol Length Info 1 0.000000000 192.168.252.188 193.40.252.145 DNS 75 Standard query 0x6aa6 A www.example.com 2 0.001986000 193.40.252.145 192.168.252.188 DNS 139 Standard query response 0x6aa6 A 93.184.216.34 3 0.007004000 192.168.252.188 93.184.216.34 ICMP 106 Echo (ping) request id=0x0001, seq=122/31232, ttl=1 (no response found!) 4 0.007998000 192.168.252.1 192.168.252.188 ICMP 134 Time-to-live exceeded (Time to live exceeded in transit) 5 0.008836000 192.168.252.188 93.184.216.34 ICMP 106 Echo (ping) request id=0x0001, seq=123/31488, ttl=1 (no response found!) 6 0