Contents
- 1 What is the ICMPv6 echo message type?
- 2 What 5 message types are used by ICMPv6 to provide addressing?
- 3 What is the value for Type field in ICMPv6 echo request message?
- 4 What is ICMPv6 protocol used for?
- 5 What is the destination address of a router solicitation packet?
- 6 What type of information is sent during RA autoconfiguration?
- 7 When to send an ICMPv6 Time Exceeded message?
- 8 Where is the ICMPv6 code field in IPv6?
What is the ICMPv6 echo message type?
Type: Identifies the ICMPv6 message type; for Echo Request messages the value is 128, and for Echo Reply messages 129. (Recall that in ICMPv6, informational messages always have a Type value of 128 or higher.) If this is sent in the Echo Request it is copied into the Echo Reply to be sent back to the source.
What 5 message types are used by ICMPv6 to provide addressing?
Internet Control Message Protocol version 6 (ICMPv6) Parameters
- Type 0 – Reserved.
- Type 1 – Destination Unreachable.
- Type 2 – Packet Too Big.
- Type 3 – Time Exceeded.
- Type 4 – Parameter Problem.
- Type 128 – Echo Request.
- Type 129 – Echo Reply.
- Type 130 – Multicast Listener Query.
What type of address are ICMPv6 neighbor solicitation messages sent?
IPv6 Multicast Address
These messages are sent by nodes when they boot up to find any routers in a local segment. It will send to the ‘All Router IPv6 Multicast Address’ ( FF02::2 ).
What does the ICMPv6 RA message include?
The RA message contains important information for nodes as well as which method they should use to obtain their IPv6 address. The RA contains several flags that are set that the nodes watch for and use. ICMPv6 RAs are intended to help facilitate bootstrapping the connectivity of an IPv6 node on a network.
What is the value for Type field in ICMPv6 echo request message?
Informational Messages
| ICMPv6 Information message | Type Field value | Code Field value |
|---|---|---|
| Echo Request Message | 128 | 0 |
| Echo Reply Message | 129 | 0 |
What is ICMPv6 protocol used for?
Internet Control Message Protocol (ICMP) is used for reporting errors and performing network diagnostics. In the error reporting process, ICMP sends messages from the receiver to the sender when data does not come though as it should.
Which protocol is used by Traceroute?
Internet Control Message Protocol (ICMP) packets
A traceroute works by sending Internet Control Message Protocol (ICMP) packets, and every router involved in transferring the data gets these packets.
What are the functionalities of neighbor solicitation message?
Neighbor solicitation and advertisement messages enable a node to determine the link-layer address of another node (neighbor) on the same link. (This function is similar to the function provided by the Address Resolution Protocol [ARP] in IPv4.)
What is the destination address of a router solicitation packet?
In the IP header of a Router Solicitation message, you will usually see the all-routers multicast address of FF02::2 as a destination address. The hop limit is set to 255. The ICMP Type field is set to 133, which is the value for the Router Solicitation message.
What type of information is sent during RA autoconfiguration?
Question: What type of information is sent during RA autoconfiguration? Network prefix and default gateway o Complete IPv6 address for the new host Complete IPv6 address for the router o Link-layer address of the router.
What is RA message?
Enabling or disabling router-advertisement (RA) messages enables you to control the routing configuration for selecting the correct network interface to communicate with its neighbors.
What is the source link layer address for ICMPv6?
The latter is accomplished by setting the ICMP target address equal to the ICMP destination address. Refer to RFC 2461 for more information on Neighbor Discovery for ICMPv6. The Source Link-Layer Address option contains the link-layer address of the sender of the packet.
When to send an ICMPv6 Time Exceeded message?
Time Exceeded Message. 3. 0 – Hop limit exceeded in transit 1 – Fragment reassembly time exceeded. If a router receives a packet with a hop limit of zero, or a router decrements a packet’s hop limit to zero, it must discard the packet and send an ICMPv6 Time Exceeded message with Code 0 to the source of the packet.
Where is the ICMPv6 code field in IPv6?
Within IPv6 ICMP packets, the ICMPv6 Type and ICMPv6 Code fields identify IPv6 ICMP packet specifics, such as the ICMP message type. The value in the Checksum field is derived (computed by the sender and checked by the receiver) from the fields in the IPv6 ICMP packet and the IPv6 pseudoheader.
What is a Destination Unreachable message in ICMPv6?
A Destination Unreachable message (Type 1) is generated in response to a packet that can not be delivered to its destination address for reasons other than congestion. The reasons for the non-delivery of a packet is described by code field value. For details of all codes, refer to RFC 2463 Section 3.1.