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Log Reference

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of logs on the product.
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AM/4/PREFALLOCFAIL: Failed to allocate an IPv6 prefix. (PoolName=[STRING1], ClientId=[STRING2], Reason=[STRING3], UserType=[STRING4])


The DHCPv6 server failed to allocate an IPv6 prefix to a client.


Parameter Name Parameter Meaning
PoolName Address pool name.
ClientId ID of the client.
Reason Cause of the failure to allocate an IPv6 prefix to the client.
UserType User type of the client.

Possible Causes

  • IPv6 prefixes in the address pool were used up.
  • The address pool was locked.


  • Based on the possible causes, perform the following steps:

    • If IPv6 prefixes in the address pool were used up, run the address prefix ipv6-prefix/ipv6-prefix-length command in the address pool view to extend the range of available IPv6 prefixes in the address pool.
    • If the address pool was locked, check why it is locked and run the undo lock command in the address pool view to unlock the address pool.

Updated: 2019-08-21

Document ID: EDOC1000142069

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