Learning IOS and JUNOS

IPv6相較於IPv4的改革，除了IP Address數量之外，還有一個很重要的就是取消了IPv4的broadcast，全部改為Multicast及新增加的Anycast來取代，以下是目前IANA所定義的一些multicast address，雖然不用強記，但是對於了解IPv6的運作肯定會有所幫助! INTERNET PROTOCOL VERSION 6 MULTICAST ADDRESSES (last updated 2007-08-30) IPv6 multicast addresses are defined in "IP Version 6 Addressing Architecture" [RFC4291]. This defines fixed scope and variable scope multicast addresses. IPv6 multicast addresses are distinguished from unicast addresses by the value of the high-order octet of the addresses: a value of 0xFF (binary 11111111) identifies an address as a multicast address; any other value identifies an address as a unicast address. The rules for assigning new IPv6 multicast addresses are defined in [RFC3307]. IPv6 multicast addresses not listed below are reserved. Current IPv6 multicast addresses are listed below. Fixed Scope Multicast Addresses ------------------------------- These permanently assigned multicast addresses are valid over a specified scope value. Node-Lo...

由於Cisco BSCI 3.0中的IPv6 Autoconfiguration & Mobile IPv6相關的Slide內容不清楚，甚至有可能誤導各位的理解方向，因此我在網路找了很久終於找到比較完整的流程解釋相關文件，不過可惜只有日文版的，不過從中也可以看到出來日本人在資料整理上下了很大的功夫，也可以了解日本在推動IPv6上不遺餘力，在技術上應用至許多不同的領域，內容相當紮實而且詳盡，圖片製作水準一流，相較於西方人整理的文件偏重於文字摘要上有很大的不同，因此推薦給各位，希望可以讓大家更加了解IPv6的運作，不用擔心看不懂日文，把重心放在運作流程上的變化即可。 以下是這份文件比較重要的內容摘要： - Address Autoconfiguration - DHCPv6 - Neighbor Discovery - Mobile IPv6 - IPv4/IPv6 Transition 。6to4 。IPv6 over IPv4 。ISATAP(Intra-Site Automatic Tunnel Addressing Protocol) 。DSTM(Dual Stack Transition Mechanism) 。SIIT(Stateless IP/ICMP Translator) 。NAT-PT 。SOCKS - IPv6 IPSec