HP 5500 Ei 5500 Si Switch Series Configuration Guide

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RIPng packet format 
Basic format 
A RIPng packet consists of a header and multiple route table entries (RTEs). The maximum number of RTEs 
in a packet depends on the IPv6 MTU of the sending interface. 
Figure 100 RIPng basic packet format 
 
 
Packet header description: 
•  Command —Type of message. 0x01 indicates Request; 0x02 indicates Response. 
•   Version —Version of RIPng. It can only be 0x01. 
•   RTE—Route table entry. It is 20 bytes for each entry. 
RTE format 
The following are types of...

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RIPng packet processing procedure 
Request packet 
When a RIPng router first starts or needs to update entries in its routing table, usually a multicast request 
packet is sent to ask for needed routes from neighbors. 
The receiving RIPng router processes RTEs in the reques t. If only one RTE exists with the IPv6 prefix and 
prefix length both being 0, and with a metric value of 16, the RIPng router will respond with the entire 
routing table information in response messages. If multiple RTEs exist...

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Configuring RIPng basic functions 
This section presents the information to configure the basic RIPng features. 
You must enable RIPng first before configuring other tasks, but it is not necessary for RIPng-related 
interface configurations, such as assigning an IPv6 address. 
Before you configure RIPng basic functions, complete the following tasks: 
•  Enable IPv6 packet forwarding. 
•   Configure an IP address for each interface, and make sure that all neighboring nodes can reach 
each other. 
To...

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Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter interface view. 
interface interface-type interface-number  N/A 
3.  Specify an inbound routing 
additional metric.  ripng metricin 
value
  Optional. 
0 by default. 
4.
  Specify an outbound 
routing additional metric.  ripng metricout
 value   Optional. 
1 by default. 
 
Configuring RIPng route summarization  
Step Command 
1.
  Enter system view. 
system-view 
2.  Enter interface view. 
interface interface-type...

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Step Command Remarks 
4.  Configure a filter policy to 
filter outgoing routes.  filter-policy 
{ acl6-number  | 
ipv6-prefix  ipv6-prefix-name  } 
export  [ protocol  [ process-id  ] ]  By default, RIPng does not filter 
outgoing routing information. 
 
Configuring a priority for RIPng 
Any routing protocol has its own protocol priority used for optimal route selection. You can set a priority 
for RIPng manually. The smaller the value, the higher the priority. 
To configure a RIPng priority:...

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To configure RIPng timers:  
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter RIPng view. 
ripng [ process-id ] N/A 
3.  Configure RIPng 
timers.  timers 
{ garbage-collect 
garbage-collect-value  | suppress  
suppress-value |  timeout 
timeout-value  | update  
update-value  } *  Optional. 
The RIPng timers have the following defaults: •
 30 seconds for the update timer 
• 180 seconds for the timeout timer 
• 120 seconds for the suppress timer 
• 120 seconds for the...

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Configuring zero field check on RIPng packets 
Some fields in the RIPng packet must be zero, which are called zero fields. With zero field check on 
RIPng packets enabled, if such a field contains a non-ze ro value, the entire RIPng packet is discarded. If 
you are sure that all packets are trustworthy, disable the zero field check to reduce the CPU processing 
time. 
To configure RIPng zero field check: 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Enter RIPng view....

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Configuration guidelines 
An IPsec policy used for RIPng can only be in manual mode. For more information, see  Security 
Configuration Guide . 
Configuration procedure 
To apply an IPsec policy in a process:  
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter RIPng view. 
ripng [ process-id ]  N/A 
3.  Apply an IPsec policy in the 
process.  enable ipsec-policy
 policy-name   Not configured by default. 
 
To apply an IPsec policy on an interface:  
Step Command Remarks 
1....

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RIPng configuration examples 
Configuring RIPng basic functions 
Network requirements 
In Figure 103 , all switches run RIPng. Configure Switch B to filter the route (3::/64) learned from Switch 
C, which means the route will not be added to the routin g table of Switch B, and Switch B will not forward 
it to Switch A. 
Figure 103  Network diagram 
 
 
Configuration procedure 
1. Configure the IPv6 address for each interface. (Details not shown.) 
2. Configure basic RIPng functions: 
# Configure...

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[SwitchC] interface vlan-interface 500 
[SwitchC-Vlan-interface500] ripng 1 enable 
[SwitchC-Vlan-interface500] quit 
[SwitchC] interface vlan-interface 600 
[SwitchC-Vlan-interface600] ripng 1 enable 
[SwitchC-Vlan-interface600] quit 
# Display the routing table of Switch B. 
[SwitchB] display ripng 1 route 
   Route Flags: A - Aging, S - Suppressed, G - Garbage-collect 
 ---------------------------------------------------------------- 
 
 Peer FE80::20F:E2FF:FE23:82F5  on Vlan-interface100 
 Dest...