Ripng Packet Processing Procedure - HP 830 Series Configuration Manual

Figure 58 RIPng basic packet format
Packet header description:
Command—Type of message. 0x01 indicates Request, 0x02 indicates Response.
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Version—Version of RIPng. It can only be 0x01.
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• RTE—Route table entry. It is 20 bytes for each entry.
RTE format
The following are types of RTEs in RIPng:
• Next hop RTE—Defines the IPv6 address of a next hop.
IPv6 prefix RTE—Describes the destination IPv6 address, route tag, prefix length, and metric in the
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RIPng routing table.
Figure 59 Next hop RTE format
IPv6 next hop address is the IPv6 address of the next hop.
Figure 60 IPv6 prefix RTE format
IPv6 prefix RTE format description:
IPv6 prefix—Destination IPv6 address prefix.
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Route tag—Route tag.
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Prefix length—Length of the IPv6 address prefix.
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Metric—Cost of a route.
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RIPng packet processing procedure

RIPng uses request and response packets to exchange routing information as follows:
1. When a RIPng router starts or must update some routing entries, it sends a multicast request to
neighbors.
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