Friday, July 23, 2010

BSCI - Study Pointers - IPv6

IPv6

  • FF00::/8 = Multicast prefix for all multicast traffic
  • Link-LSA's and Intra-area LSA's are not used in OSPFv2 (Included in OSPFv3)
  • R2(config-if)#ipv6 ospf cost 50 - this cmd sets the cost of a packet on this interface
  • R2(config)#ipv6 unicast-routing - required when configuring a router for IPv4/IPv6 Dual Stack
  • In a tunnel the header will look like - | ipv4 header | ipv6 header | ipv6 data |
  • In OSPFv3 Type3 and Type9 LSA's carry all IPv6 Prefix info
  • Local-Link LSA's aree flooded through the OSPF area
  • IPv6 autoconfiguration allows a device to connect to a network without further config or the use of a DHCP server
  • Enable a IPv6-to-IPv4 tunnel using: 
          R3(config)#interface tunnel0
          R3(config-if)#tunnel mode ipv6ip
               *apply this on both ends of the tunnel

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