IPv6 Cisco Switch Router Advertisment: Unterschied zwischen den Versionen

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Zeile 22: Zeile 22:
 
=GigabitEthernet2 mit akiven Router Advertisment=
 
=GigabitEthernet2 mit akiven Router Advertisment=
 
<pre>
 
<pre>
interface Vlan5
+
interface GigabitEthernet2
 
  description lan
 
  description lan
 
  ip address 192.168.45.2 255.255.255.0
 
  ip address 192.168.45.2 255.255.255.0
 
  ipv6 address 2A02:24D8:71:2445::2/64
 
  ipv6 address 2A02:24D8:71:2445::2/64
ipv6 address 2A02:24D8:71:3035::2/64
 
 
end
 
end
 
</pre>
 
</pre>
Zeile 33: Zeile 32:
 
<pre>
 
<pre>
 
ipv6 dhcp pool DHCPv6-Pool
 
ipv6 dhcp pool DHCPv6-Pool
  address prefix 2A02:24D8:71:2445::/64
+
  address prefix  
  dns-server 2001:4860:4860::8888
+
  dns-server  
 
  domain-name linuggs.de
 
  domain-name linuggs.de
 
</pre>
 
</pre>

Version vom 20. April 2024, 09:10 Uhr

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 GigabitEthernet2
 description lan
 ip address 192.168.45.2 255.255.255.0
 ipv6 address 2A02:24D8:71:2445::2/64
end

GigabitEthernet2 mit DHCPv6 und DNS Delegation

DHCPv6

ipv6 dhcp pool DHCPv6-Pool
 address prefix 
 dns-server 
 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