IPv6 Transitioning

Summary of Transition high level methods (notes for my reference). The problem is that IPv6 isn't compatible with IPv4 so we need to have a method to either... Dual Stack. Simply run both IPv4 and IPv6 together. Separate Routing Tables! Translate. Convert IPv6 to IPv4 somewhere using NAT-PT (RFC4966.  converting IPv6 ⇔ IPv4 on a boundary device) or … Continue reading IPv6 Transitioning

IPv6 Routing : OSPF Example

I'm using a basic configuration with single loopback on each or R1 and R2.  R1 is configured using global prefix and R2 is using auto-config with no default... IPv6 OSPF OSPFv3 for IPv6 but added IPv4 address families in 2010. Traditional OSPFv3 (only IPv6) or OSPFv3 with AF (IPv4 families too). FF02::5 (All SPF Routers) and … Continue reading IPv6 Routing : OSPF Example

IPv6 General Prefix and SLAAC Examples

General Prefix This is great for allowing auto configuration on a site.  You can configure a /48 global prefix, then allocate prefixs(subnets) per derived from it!  The names global prefix can contain more than one /48 address to aid migration of a whole site. Example: R1(config)#ipv6 general-prefix NOTEPAD 2001:CAFE:CAFE::/48 R1(config)#int fa 0/0 R1(config-if)#ipv6 address NOTEPAD … Continue reading IPv6 General Prefix and SLAAC Examples