Thursday, March 31, 2011

IPv6 Quick Facts

- Successor of IPv4
- 128-bit long addresses
- Customer usually gets a /64 subnet
- Not need for NAT anymore
- No Broadcasts
- No ARP
- Stateless Address Configuration without DHCP
- Improved Multicast
- Easy IP Renumbering
- Minimum MTU Size is 1280
- Mobile IPv6
- Mandatory IPsec support
- Extension Headers
- Jumbograms up to 4 GiB

To get a good idea of how many more IPs there are with IPv6 vs IPv4 imagine that if the IPv4 address space was the size of a golf ball then the IPv6 address space would be the size of the Sun!

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