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Entries from July 2007

Routing Header Type 0

July 26th, 2007 · Comments Off

Routing header is used by an IPv6 source to list one or more intermediate nodes to be “visited” on the way to a packet’s destination. Routing header may appear in an IPv6 packet in the extension header field. No. of segments left: This is one of…

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Different states of the auto configured address

July 25th, 2007 · Comments Off

1) Tentative: It is the state where the address is not verified as unique. A node with address in tentative state can only receive multicast neighbor advertisement. 2) Valid: In this state a node can send and receive unicast traffic. Valid st…

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Network Access Protection in Vista

July 25th, 2007 · Comments Off

Feature Description Windows Vista includes an agent that can prevent a Windows Vista-based client from connecting to your private network if it lacks current security updates or lacks virus signatures. Network Access Protection can be used to pr…

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IPv6 Neighbor Discovery

July 25th, 2007 · Comments Off

IPv6 Neighbor Discovery (ND) is a set of messages and processes that determine relationships between neighboring nodes. ND replaces ARP, ICMP router discovery, and the ICMP Redirect message used in IPv4. ND also provides additional functionality. …

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DNS Enhancements for IPv6

July 25th, 2007 · Comments Off

In RFC 1886, a new DNS resource record type, AAAA (also known as “quad A”), is used for resolving a fully qualified domain name to an IPv6 address. AAAA records use the DNS record type of 28. AAAA records are comparable to the host address (A) resou…

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How to Form a Link Local address from MAC Address

July 25th, 2007 · Comments Off

1. A MAC address (IEEE 802) is 48 bits long. The space for the local identifier in an IPv6 address is 64 bits. The EUI-64 standard explains how to stretch IEEE 802 addresses from 48 to 64 bits, by inserting the 16 bits 0xFFFE at the 24th bit of the …

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IPv6 address configuration

July 25th, 2007 · Comments Off

The auto-configuration involves, creating a link-local address and verifying its uniqueness on the link, determining what information should be auto-configured (addresses, other options or both) and in case of addresses, whether they should be acqui…

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ISATAP

July 25th, 2007 · Comments Off

ISATAP is an address assignment and host-to-host, host-to-router, and router-to-host automatic tunneling technology that is used to provide unicast IPv6 connectivity between IPv6 hosts across an IPv4 intranet. ISATAP is described in the Internet dra…

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IPv6 Mobility Components

July 25th, 2007 · Comments Off

IPv6 mobility consists of the following components, Home link: The home link is the link that is assigned the home subnet prefix. The mobile node uses the home subnet prefix to create a home address. Home address: A home address is an address ass…

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Address autoconfiguration process in IPv6 host:

July 25th, 2007 · Comments Off

The address autoconfiguration process defined in RFC 2462 for IPv6 host is the following: The host sends a Router Solicitation message. While routers pseudo-periodically send router advertisements, the host sends a Router Solicitation message to r…

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