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Configuration Guide - IP Service

S7700 and S9700 V200R013C00

This document describes the configurations of IP service, including IP address, ARP, DHCP, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel and IPv4 over IPv6 tunnel.
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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

The IPv6 function is controlled by a license. By default, this function is disabled on a new device. To use the IPv6 function, apply for and purchase the license from the device supplier.

For details about how to apply for a license, see Obtaining Licenses in the S7700 and S9700 Series Switches License Usage Guide.

Version Requirements

Table 9-3  Products and versions supporting IPv6

Product

Product Model

Software Version

S7700

S7703, S7706, and S7712

V100R003C01, V100R006C00, V200R001(C00&C01), V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C10, V200R012C00, V200R013C00

S7703 PoE

V200R013C00

S7706 PoE

V200R013C00

S9700

S9703, S9706, and S9712

V200R001(C00&C01), V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007(C00&C10), V200R008C00, V200R009C00, V200R010C00, V200R011C10, V200R012C00, V200R013C00

NOTE:
For details about software mappings, visit Hardware Query Tool and search for the desired product model.

Feature Limitations

  • IPv6 addresses cannot be assigned to the management interface.

  • In V200R011C10 or a later version, the VLANIF interface of a super-VLAN on a switch supports the IPv6 function.

  • The duplicate address detection (DAD) function is supportedon a switch in V200R001 or a later version.

  • The switch can set the CPCAR values for the packets of each protocol. The CPCAR values of some protocol packets need to be adjusted based on the actual service scale and user network.

  • If the default CPCAR value of ND packets cannot meet the packet exchange requirements when too many IPv6 user hosts are connected to the switch, a large number of ND packets may be lost and the switch fails to learn ND neighbor entries. Therefore, the CPCAR value must be adjusted. To prevent the CPU from running with a high load, the CPCAR value needs to be increased to a proper value.

  • If the CPCAR values are adjusted improperly, network services are affected. To adjust the CPCAR values of ND packets, contact technical support personnel.

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Updated: 2019-04-20

Document ID: EDOC1100065743

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