Notater – Nettverkskurs

NettverksKurs

OSI layer

Appl. – Programmer (nettleser, klienter,ssh, http, https, dpt, mail)
Transport – Protokoll, portnummer. TCP 80, 443 eller UDP 53 DNS. Tcp sender packet, sjekker ok. UDP sender bare.

Network – Ipv4 32 bit nettnr 158.39.160.0 Host. Netmask/Subnet 255.255.255.0, Ipv6 128 bit 2001:0700:0A00:FF00::/6y Nettnr 64 Bit,
interface nr 64 bit.

Data link – MAC adresse. 48 Bit. AA:01:C1:31:22:01, AA01:C131:212o1, AA01
Physical – Lan, WLAN, Network interface