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Table Of Contents  The TCP/IP Guide
 9  TCP/IP Lower-Layer (Interface, Internet and Transport) Protocols (OSI Layers 2, 3 and 4)
      9  TCP/IP Internet Layer (OSI Network Layer) Protocols
           9  Internet Control Message Protocol (ICMP/ICMPv4 and ICMPv6)
                9  ICMP Message Types and Formats
                     9  ICMP Version 6 (ICMPv6) Informational Message Types and Formats

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ICMPv6 Router Renumbering Messages
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 TCP/IP IPv6 Neighbor Discovery Protocol (ND)
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ICMPv6 Informational Message Options
(Page 2 of 6)

Source Link-Layer Address Option Format

This option carries the link-layer address of a device sending an ICMPv6 message, as shown in Table 115 and Figure 164. Used in Router Advertisement, Router Solicitation and Neighbor Solicitation messages:


Table 115: ICMPv6 Source Link-Layer Address Option Format

Field Name

Size (bytes)

Description

Type

1

Type: Identifies the ICMPv6 option type. For the Source Link-Layer Address option, the value is 1.

Length

1

Length: The length of the entire option (including the Type and Length fields), expressed in units of 8 octets (64 bits).

Source Link-Layer Address

Variable

Source Link-Layer Address: The link-layer (layer two) address of the device sending the ICMPv6 message.


Figure 164: ICMPv6 Source Link-Layer Address Option Format

 

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