Netværkssikkerhed

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Header IP header Data IP protokollen er stateless 09/10/2012 ITU 7.12
IP - Netværkslaget • Notation 192.168.0.1 = 3232235521 • Tre typer af IP adresser: • unicast • broadcast • multicast IP • Reservede IP adresser for private netværk • 10.0.0.0 - 10.255.255.255 • 172.16.0.0 - 172.31.255.255 • 192.168.0.0 - 192.168.255.255 • Multicast adresser • 224.0.0.0 - 239.255.255.255 • Domain Name Service (DNS) 09/10/2012 ITU 7.13
Page 1 and 2: Netværkssikkerhed Netv rkssikkerhe
Page 3 and 4: Netværksterminologi Computing syst
Page 5 and 6: Transmissionsmedier • Kobber (wir
Page 7 and 8: ping application ICMP IGMP DHCP TCP
Page 9 and 10: Applikationslaget HELO itu.dk MAIL
Page 11: UDP-header Connection less Transpor
Page 15 and 16: LAN Header Transceiver Frames Netwo
Page 17 and 18: Trusler og sårbarheder • Sniffin
Page 19 and 20: Mulige modmidler • Boundary Contr
Page 21 and 22: IEEE 802.1q 12 bits til VLAN, dvs,
Page 23 and 24: Firewall komponenter • Sikkerheds
Page 25 and 26: Felter for filtrering (TCP/IP) TYPI
Page 27 and 28: Packet filtering firewall system
Page 29 and 30: Screened subnet firewall system 09/
Page 31 and 32: Personal firewalls • Installeres
Page 33 and 34: Dual home firewall iptables - eksem
Page 35 and 36: Intrusion detection systemer (IDS)
Page 37 and 38: TCP/IP suite Application layer Tran
Page 39 and 40: IPSEC (IP-security) • Kan både a
Page 41 and 42: IPSEC headers • Authentication He
Page 43 and 44: Transport mode AH in IP Tunnel mode
Page 45 and 46: • ISAKMP Key distribution (Intern

Netværkssikkerhed

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