IPv6 Cisco Switch Router Advertisment

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Wir untersuchen das Router Advertisment

Die ICMPv6 Typen

  • Typ 133: Router Solicitation (RS)
Gesendet von einem Host, um Router um Router Advertisement zu bitten.
  • Typ 134: Router Advertisement (RA)
Gesendet von einem Router, um Netzwerkkonfigurationsinformationen an Hosts zu verteilen.

Wireshark Display Filter

  • icmpv6.type == 133 or icmpv6.type == 134

GigabitEthernet2 mit abgeschaltetem Router Advertisment

interface GigabitEthernet2
 description lan
 ip address 192.168.45.2 255.255.255.0
 negotiation auto
 ipv6 address 2A02:24D8:71:3035::2/64
 ipv6 ns prefix default no-advertise
 ipv6 nd ra suppress all
end

GigabitEthernet2 mit akiven Router Advertisment

interface Vlan5
 description lan
 ip address 192.168.45.2 255.255.255.0
 ipv6 address 2A02:24D8:71:2445::2/64
 ipv6 address 2A02:24D8:71:3035::2/64
end

GigabitEthernet2 mit DHCPv6 und DNS Delegation

DHCPv6

ipv6 dhcp pool DHCPv6-Pool
 address prefix 2A02:24D8:71:2445::/64
 dns-server 2001:4860:4860::8888
 domain-name linuggs.de
interface Vlan5
 ip address 192.168.45.2 255.255.255.0
 ipv6 address 2A02:24D8:71:2445::2/64
 ipv6 dhcp server DHCPv6-Pool
end

Wiresharkfilter

  • icmpv6.type == 133 or icmpv6.type == 134 or udp.port == 547 or udp.port == 546