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Configuration Guide - IP Service

CloudEngine 8800, 7800, 6800, and 5800 V200R002C50

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DNS, IP performance optimization, IPv6, DHCPv6, and IPv6 DNS.
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Licensing Requirements and Limitations for IPv6

Licensing Requirements and Limitations for IPv6

Involved Network Elements

Other network elements are not required.

Licensing Requirements

IPv6 is a basic feature of a device and is not under license control.

Version Requirements

Table 7-4  Products and minimum version supporting IPv6

Product

Minimum Version Required

CE8850-32CQ-EI

V200R002C50

CE8850-64CQ-EI

V200R005C00

CE8860EI

V100R006C00

CE8861EI

V200R005C10

CE8868EI

V200R005C10

CE7850EI

V100R003C00

CE7855EI

V200R001C00

CE6810EI

V100R003C00

CE6850EI

V100R002C00

CE6850-48S6Q-HI

V100R005C00

CE6850-48T6Q-HI/CE6850U-HI/CE6851HI

V100R005C10

CE6855HI

V200R001C00

CE6856HI

V200R002C50

CE6857EI

V200R005C10

CE6860EI

V200R002C50

CE6865EI

V200R005C00

CE6870-24S6CQ-EI/CE6870-48S6CQ-EI

V200R001C00

CE6870-48T6CQ-EI

V200R002C50

CE6875-48S4CQ-EI

V200R003C00

CE6880EI

V200R002C50

CE5810EI

V100R002C00

CE5850EI

V100R002C00

CE5850HI

V100R003C00

CE5855EI

V200R002C50

CE5880EI

V200R005C10

Feature Limitations

When deploying IPv6 on the switch, pay attention to the following:
  • In versions earlier than V200R002C50, the CE5855EI does not support IPv6. However, interfaces on a CE5855EI provide the IPv6 capability when the switch functions as a leaf switch in a super virtual fabric (SVF) system and the SVF forwarding mode is set to centralized or hybrid. In V200R002C50 and later versions, the CE5855EI supports IPv6.
  • The CE6810LI does not support IPv6 Layer 3 forwarding. After the IPv6 function is enabled on an interface of the CE6810LI, the configured IPv6 address can only be used to manage the switch.

  • Devices except the CE6810LI do not support Layer 3 forwarding of IPv6 packets in which the IP header contains the option field.
  • Each interface can be configured with only one link-local address. To prevent link-local address conflict, automatically generated link-local addresses are recommended.

  • Manually configured link-local addresses have higher priority than automatically generated ones. Manually configured addresses can overwrite automatically generated ones, but automatically generated addresses cannot overwrite manually configured ones. If manually configured addresses are deleted, the overwritten automatically generated ones take effect.

  • When both static PMTU and dynamic PMTU are configured, only static PMTU takes effect. Static PMTU entries never age.

  • The interface MTU, IPv6 interface MTU, and PMTU are valid only for the packets generated on the device, not for packets forwarded by the host.

  • A switch can receive ICMPv6 error packets that are sent from other devices and learns the path MTU according to the received ICMPv6 error packets.

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Updated: 2019-03-21

Document ID: EDOC1000166635

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