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NE40E V800R010C10SPC500 Configuration Guide - User Access 01

This is NE40E V800R010C10SPC500 Configuration Guide - User Access
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Licensing Requirements and Limitations for IPv6 Address Management

Licensing Requirements and Limitations for IPv6 Address Management

Licensing Requirements

This feature is a basic feature and is not under license control.

Restrictions and Guidelines

Restrictions

Guidelines

Impact

You can run the reserved prefix command to configure a reservation type for the prefixes in a delegation prefix pool. The following reservation types are supported: MAC address-based reservation, MAC address and lease-based reservation, DUID-based reservation, DUID and lease-based reservation
  • When ND assigns IPv6 prefixes in unshared mode, MAC-based reservation does not take effect for L2TP users because LNS-side users have no MAC address. IPoE and PPPoE support MAC-based reservation only.
  • When DHCPv6 uses IA_PD options to assign IPv6 prefixes to L2TP users, prefix reservations based on MAC addresses and based on MAC addresses+leases are not supported.
  • IPv6 prefixes delivered by RADIUS servers cannot be reserved.
  • Prefix reservations are not supported when one MAC address maps to multiple sessions for PPPoE users.

None

Users cannot use reserved prefixes to go online.

Address assignment based on the Option 18 or Option 37 attribute:
  • Prefixes in the delegation prefix pool for which the dhcpv6-unshare-only command is configured cannot be delivered by the RADIUS server.
  • The same IPv6 address in the EUI-64 format or interface ID negotiated using PPP cannot be assigned to users with the same prefix. Otherwise, the second user with the same IPv6 address in the EUI-64 format or interface ID negotiated using PPP fails to go online after the first user goes online.

None

None

IP addresses cannot be reserved based on MAC addresses in scenarios where DHCPv6 and PPPoEv6 users have the same MAC address and one-to-many mapping between one MAC address and multiple sessions is configured for PPPoEv6 users.

Do not deploy these services at the same time.

If a user has been online, a new user with the same MAC address as the online user cannot go online.

If the user has been offline, the reserved address is occupied by a new user with the same MAC address as the offline user.

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Updated: 2019-01-03

Document ID: EDOC1100055031

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